[med-svn] [Git][med-team/dcmtk][master] 2 commits: Apply patches from NMU proposal by Adrian Bunk to address CVE-2024-28130, ...
Santiago Vila (@sanvila)
gitlab at salsa.debian.org
Wed Jun 5 14:00:53 BST 2024
Santiago Vila pushed to branch master at Debian Med / dcmtk
Commits:
6ec0127d by Santiago Vila at 2024-06-05T14:33:17+02:00
Apply patches from NMU proposal by Adrian Bunk to address CVE-2024-28130, CVE-2024-34508 and CVE-2024-34509. Closes: #1070207.
- - - - -
e5c8d3e2 by Santiago Vila at 2024-06-05T14:34:12+02:00
Upload for unstable as 3.6.7-14
- - - - -
7 changed files:
- debian/changelog
- + debian/patches/0001-Fixed-unchecked-typecasts-of-DcmItem-search-results.patch
- + debian/patches/0002-Fixed-unchecked-typecasts-and-fixed-LUT-handling.patch
- + debian/patches/0003-Fixed-wrong-error-handling-previous-commit.patch
- + debian/patches/0004-Fixed-two-segmentation-faults.patch
- + debian/patches/0005-Fixed-DcmDecimalString-unit-tests.patch
- debian/patches/series
Changes:
=====================================
debian/changelog
=====================================
@@ -1,3 +1,16 @@
+dcmtk (3.6.7-14) unstable; urgency=medium
+
+ * Team upload.
+ [ Emanuele Rocca ]
+ * Do not drop graphviz from build-depends-indep for armhf and armel.
+ [ Adrian Bunk ]
+ * CVE-2024-28130: Segmentation faults due to incorrect typecast
+ (Closes: #1070207)
+ * CVE-2024-34508: Segmentation fault via invalid DIMSE message
+ * CVE-2024-34509: Segmentation fault via invalid DIMSE message
+
+ -- Santiago Vila <sanvila at debian.org> Wed, 05 Jun 2024 14:30:00 +0200
+
dcmtk (3.6.7-13) unstable; urgency=medium
* Team upload.
=====================================
debian/patches/0001-Fixed-unchecked-typecasts-of-DcmItem-search-results.patch
=====================================
@@ -0,0 +1,1519 @@
+From 490f9dd15d1c98cd3b79e5088136cda1fb2d7405 Mon Sep 17 00:00:00 2001
+From: Marco Eichelberg <dicom at offis.de>
+Date: Mon, 15 Apr 2024 12:12:51 +0200
+Subject: Fixed unchecked typecasts of DcmItem::search results.
+Bug-Debian: https://bugs.debian.org/1070207
+Forwarded: not-needed
+
+DcmItem::search() returns a stack of DcmObject pointers as search results.
+These pointers in most instances need to be casted to DcmItem, DcmElement
+or a subclass of these. In many cases, the type of the object was not
+properly checked before the typecast. This could lead to segmentation faults
+when invalid DICOM datasets were processed where elements had the wrong
+value representation.
+---
+ dcmdata/apps/cda2dcm.cc | 0
+ dcmdata/apps/stl2dcm.cc | 0
+ dcmdata/include/dcmtk/dcmdata/dcelem.h | 5 +++
+ dcmdata/include/dcmtk/dcmdata/dcencdoc.h | 0
+ dcmdata/include/dcmtk/dcmdata/dcobject.h | 7 +++-
+ dcmdata/libsrc/dcddirif.cc | 4 +--
+ dcmdata/libsrc/dcdirrec.cc | 6 ++--
+ dcmdata/libsrc/dcfilefo.cc | 12 +++----
+ dcmdata/libsrc/dcitem.cc | 14 ++++----
+ dcmimgle/libsrc/didocu.cc | 2 +-
+ dcmiod/libsrc/iodutil.cc | 4 +--
+ dcmjpeg/libsrc/djcodece.cc | 8 ++---
+ dcmnet/apps/storescu.cc | 6 ++++
+ dcmnet/libsrc/dimcmd.cc | 38 ++++++++++++---------
+ dcmnet/libsrc/diutil.cc | 28 ++++++++--------
+ dcmnet/libsrc/dstorscu.cc | 2 +-
+ dcmpstat/apps/dcmmklut.cc | 4 +--
+ dcmpstat/apps/dcmpschk.cc | 6 +++-
+ dcmpstat/libsrc/dviface.cc | 10 +++---
+ dcmpstat/libsrc/dvpsabl.cc | 4 +--
+ dcmpstat/libsrc/dvpscu.cc | 18 +++++-----
+ dcmpstat/libsrc/dvpsdal.cc | 4 +--
+ dcmpstat/libsrc/dvpsfs.cc | 22 ++++++-------
+ dcmpstat/libsrc/dvpsgal.cc | 4 +--
+ dcmpstat/libsrc/dvpsgll.cc | 4 +--
+ dcmpstat/libsrc/dvpsgrl.cc | 4 +--
+ dcmpstat/libsrc/dvpshlp.cc | 2 +-
+ dcmpstat/libsrc/dvpsib.cc | 42 ++++++++++++------------
+ dcmpstat/libsrc/dvpsibl.cc | 4 +--
+ dcmpstat/libsrc/dvpspll.cc | 4 +--
+ dcmpstat/libsrc/dvpsril.cc | 2 +-
+ dcmpstat/libsrc/dvpsrsl.cc | 4 +--
+ dcmpstat/libsrc/dvpssp.cc | 40 +++++++++++-----------
+ dcmpstat/libsrc/dvpstxl.cc | 4 +--
+ dcmpstat/libsrc/dvpsvll.cc | 4 +--
+ dcmrt/libsrc/drttypes.cc | 8 ++---
+ dcmsign/libsrc/dcsignat.cc | 20 +++++------
+ dcmsign/libsrc/sicert.cc | 4 +--
+ dcmsr/libsrc/dsrtypes.cc | 4 +--
+ 39 files changed, 191 insertions(+), 167 deletions(-)
+ mode change 100755 => 100644 dcmdata/apps/cda2dcm.cc
+ mode change 100755 => 100644 dcmdata/apps/stl2dcm.cc
+ mode change 100755 => 100644 dcmdata/include/dcmtk/dcmdata/dcencdoc.h
+
+--- a/dcmdata/include/dcmtk/dcmdata/dcelem.h
++++ b/dcmdata/include/dcmtk/dcmdata/dcelem.h
+@@ -143,6 +143,11 @@
+ */
+ virtual OFBool isLeaf() const { return OFTrue; }
+
++ /** check if this element can be safely casted to DcmElement
++ * @return true if DcmElement, false otherwise
++ */
++ virtual OFBool isElement() const { return OFTrue; }
++
+ /** check if value of this element is loaded into main memory
+ * @return true if value is present in memory, false if value still resides in file
+ */
+--- a/dcmdata/include/dcmtk/dcmdata/dcobject.h
++++ b/dcmdata/include/dcmtk/dcmdata/dcobject.h
+@@ -1,6 +1,6 @@
+ /*
+ *
+- * Copyright (C) 1994-2020, OFFIS e.V.
++ * Copyright (C) 1994-2024, OFFIS e.V.
+ * All rights reserved. See COPYRIGHT file for details.
+ *
+ * This software and supporting documentation were developed by
+@@ -308,6 +308,11 @@
+ */
+ virtual OFBool isLeaf() const = 0;
+
++ /** check if this element can be safely casted to DcmElement
++ * @return true if DcmElement, false otherwise
++ */
++ virtual OFBool isElement() const { return OFFalse; }
++
+ /** check if this element is nested in a sequence of items, i.e.\ not a
+ * top-level or stand-alone element
+ * @return true if this element is nested, false otherwise
+--- a/dcmdata/libsrc/dcddirif.cc
++++ b/dcmdata/libsrc/dcddirif.cc
+@@ -433,7 +433,7 @@
+ OFBool first = OFTrue;
+ DcmStack stack1, stack2;
+ /* check whether attributes are equal */
+- while (item1->nextObject(stack1, first).good() && item2->nextObject(stack2, first).good())
++ while (item1->nextObject(stack1, first).good() && item2->nextObject(stack2, first).good() && stack1.top()->isElement() && stack2.top()->isElement())
+ {
+ if (!compareAttributes(OFstatic_cast(DcmElement *, stack1.top()), OFstatic_cast(DcmElement *, stack2.top()), fromSequence, i++, reason))
+ break;
+@@ -5511,7 +5511,7 @@
+ OFBool first = OFTrue;
+ DcmElement *delem = NULL;
+ /* iterate over all record elements */
+- while (record->nextObject(stack, first).good() && (result || !abortCheck))
++ while (record->nextObject(stack, first).good() && (result || !abortCheck) && stack.top()->isElement())
+ {
+ delem = OFstatic_cast(DcmElement *, stack.top());
+ if ((delem != NULL) && (delem->getLength() > 0))
+--- a/dcmdata/libsrc/dcdirrec.cc
++++ b/dcmdata/libsrc/dcdirrec.cc
+@@ -1004,7 +1004,7 @@
+ DCMDATA_ERROR("Internal ERROR in DcmDirectoryRecord::fillElementsAndReadSOP()");
+ }
+ uiP = new DcmUniqueIdentifier(refSOPClassTag); // (0004,1510)
+- if (refFile->search(DCM_SOPClassUID, stack).good())
++ if (refFile->search(DCM_SOPClassUID, stack).good() && (stack.top()->ident() == EVR_UI))
+ {
+ char *uid = NULL;
+ OFstatic_cast(DcmUniqueIdentifier *, stack.top())->getString(uid);
+@@ -1017,7 +1017,7 @@
+ insert(uiP, OFTrue);
+
+ uiP = new DcmUniqueIdentifier(refSOPInstTag); // (0004,1511)
+- if (refFile->search(DCM_SOPInstanceUID, stack).good() || refFile->search(DCM_MediaStorageSOPInstanceUID, stack).good())
++ if ((refFile->search(DCM_SOPInstanceUID, stack).good() || refFile->search(DCM_MediaStorageSOPInstanceUID, stack).good()) && (stack.top()->ident() == EVR_UI))
+ {
+ char *uid = NULL;
+ OFstatic_cast(DcmUniqueIdentifier *, stack.top())->getString(uid);
+@@ -1030,7 +1030,7 @@
+ insert(uiP, OFTrue);
+
+ uiP = new DcmUniqueIdentifier(refFileXferTag); // (0004,1512)
+- if (refFile->search(DCM_TransferSyntaxUID, stack).good())
++ if (refFile->search(DCM_TransferSyntaxUID, stack).good() && (stack.top()->ident() == EVR_UI))
+ {
+ char *uid = NULL;
+ OFstatic_cast(DcmUniqueIdentifier *, stack.top())->getString(uid);
+--- a/dcmdata/libsrc/dcfilefo.cc
++++ b/dcmdata/libsrc/dcfilefo.cc
+@@ -1,6 +1,6 @@
+ /*
+ *
+- * Copyright (C) 1994-2022, OFFIS e.V.
++ * Copyright (C) 1994-2024, OFFIS e.V.
+ * All rights reserved. See COPYRIGHT file for details.
+ *
+ * This software and supporting documentation were developed by
+@@ -363,7 +363,7 @@
+ {
+ if ((writeMode == EWM_updateMeta) || (elem->getLength() == 0))
+ {
+- if (dataset->search(DCM_SOPClassUID, stack).good())
++ if (dataset->search(DCM_SOPClassUID, stack).good() && (stack.top()->ident() == EVR_UI))
+ {
+ char *uid = NULL;
+ l_error = OFstatic_cast(DcmUniqueIdentifier *, stack.top())->getString(uid);
+@@ -379,7 +379,7 @@
+ else if (DCM_dcmdataLogger.isEnabledFor(OFLogger::WARN_LOG_LEVEL))
+ {
+ // check whether UID in meta-header is identical to the one in the dataset
+- if (dataset->search(DCM_SOPClassUID, stack).good())
++ if (dataset->search(DCM_SOPClassUID, stack).good() && (stack.top()->ident() == EVR_UI))
+ {
+ OFString uidDataset, uidMetaHeader;
+ OFstatic_cast(DcmUniqueIdentifier *, stack.top())->getOFStringArray(uidDataset);
+@@ -405,7 +405,7 @@
+ {
+ if ((writeMode == EWM_updateMeta) || (elem->getLength() == 0))
+ {
+- if (dataset->search(DCM_SOPInstanceUID, stack).good())
++ if (dataset->search(DCM_SOPInstanceUID, stack).good() && (stack.top()->ident() == EVR_UI))
+ {
+ char* uid = NULL;
+ l_error = OFstatic_cast(DcmUniqueIdentifier *, stack.top())->getString(uid);
+@@ -423,7 +423,7 @@
+ else if (DCM_dcmdataLogger.isEnabledFor(OFLogger::WARN_LOG_LEVEL))
+ {
+ // check whether UID in meta-header is identical to the one in the dataset
+- if (dataset->search(DCM_SOPInstanceUID, stack).good())
++ if (dataset->search(DCM_SOPInstanceUID, stack).good() && (stack.top()->ident() == EVR_UI))
+ {
+ OFString uidDataset, uidMetaHeader;
+ OFstatic_cast(DcmUniqueIdentifier *, stack.top())->getOFStringArray(uidDataset);
+@@ -634,7 +634,7 @@
+ /* check whether meta header is present (and non-empty, i.e. contains elements) */
+ if (metainfo && !metainfo->isEmpty())
+ {
+- if (metainfo->search(DCM_TransferSyntaxUID, stack).good())
++ if (metainfo->search(DCM_TransferSyntaxUID, stack).good() && (stack.top()->ident() == EVR_UI))
+ {
+ DcmUniqueIdentifier *xferUI = OFstatic_cast(DcmUniqueIdentifier *, stack.top());
+ if (xferUI->getTag().getXTag() == DCM_TransferSyntaxUID)
+--- a/dcmdata/libsrc/dcitem.cc
++++ b/dcmdata/libsrc/dcitem.cc
+@@ -2322,7 +2322,7 @@
+ DcmStack stack;
+ OFBool result = OFFalse;
+
+- if (search(key, stack, ESM_fromHere, searchIntoSub).good())
++ if (search(key, stack, ESM_fromHere, searchIntoSub).good() && stack.top()->isElement())
+ {
+ DcmElement *elem = OFstatic_cast(DcmElement *, stack.top());
+ if (elem != NULL)
+@@ -2345,7 +2345,7 @@
+ DcmStack stack;
+ /* find the element */
+ OFCondition status = search(tagKey, stack, ESM_fromHere, searchIntoSub);
+- if (status.good())
++ if (status.good() && stack.top()->isElement())
+ {
+ element = OFstatic_cast(DcmElement *, stack.top());
+ /* should never happen but ... */
+@@ -2980,7 +2980,7 @@
+ DcmStack stack;
+ /* find the element */
+ OFCondition status = search(seqTagKey, stack, ESM_fromHere, searchIntoSub);
+- if (status.good())
++ if (status.good() && stack.top()->isElement())
+ {
+ DcmElement *delem = OFstatic_cast(DcmElement *, stack.top());
+ /* should never happen but ... */
+@@ -3017,7 +3017,7 @@
+ DcmStack stack;
+ /* find sequence */
+ OFCondition status = search(seqTagKey, stack, ESM_fromHere, OFFalse /*searchIntoSub*/);
+- if (status.good())
++ if (status.good() && stack.top()->isElement())
+ {
+ /* get element */
+ DcmElement *delem = OFstatic_cast(DcmElement *, stack.top());
+@@ -3079,7 +3079,7 @@
+ OFCondition status = search(seqTag, stack, ESM_fromHere, OFFalse /*searchIntoSub*/);
+ DcmSequenceOfItems *sequence = NULL;
+ /* sequence found? */
+- if (status.good())
++ if (status.good() && stack.top()->isElement())
+ {
+ /* get element */
+ DcmElement *delem = OFstatic_cast(DcmElement *, stack.top());
+@@ -3213,7 +3213,7 @@
+ DcmStack stack;
+ /* find sequence */
+ OFCondition status = search(seqTagKey, stack, ESM_fromHere, OFFalse /*searchIntoSub*/);
+- if (status.good())
++ if (status.good() && stack.top()->isElement())
+ {
+ /* get element */
+ DcmElement *delem = OFstatic_cast(DcmElement *, stack.top());
+@@ -4173,7 +4173,7 @@
+ status = search(seqTag, stack, ESM_fromHere, OFFalse /*searchIntoSub*/);
+ DcmSequenceOfItems *sequence = NULL;
+ /* sequence found? */
+- if (status.good())
++ if (status.good() && stack.top()->isElement())
+ {
+ /* get element */
+ DcmElement *delem = OFstatic_cast(DcmElement *, stack.top());
+--- a/dcmimgle/libsrc/didocu.cc
++++ b/dcmimgle/libsrc/didocu.cc
+@@ -218,7 +218,7 @@
+ obj = Object;
+ // only search on main dataset level
+ if ((obj != NULL) && (obj->search(tag, stack, ESM_fromHere, OFFalse /* searchIntoSub */) == EC_Normal) &&
+- (stack.top()->getLength(Xfer) > 0))
++ (stack.top()->getLength(Xfer) > 0) && stack.top()->isElement())
+ {
+ return OFstatic_cast(DcmElement *, stack.top());
+ }
+--- a/dcmiod/libsrc/iodutil.cc
++++ b/dcmiod/libsrc/iodutil.cc
+@@ -43,7 +43,7 @@
+ DcmStack stack;
+ const DcmTagKey tagKey = delem.getTag();
+ OFCondition result = dataset.search(tagKey, stack, ESM_fromHere, OFFalse /*searchIntoSub*/);
+- if (result.good())
++ if (result.good() && stack.top()->isElement())
+ {
+ /* copy object from search stack */
+ result = delem.copyFrom(*stack.top());
+@@ -76,7 +76,7 @@
+
+ DcmStack stack;
+ OFCondition result = dataset.search(tagKey, stack, ESM_fromHere, OFFalse /*searchIntoSub*/);
+- if (result.good())
++ if (result.good() && stack.top()->isElement())
+ {
+ /* copy object from search stack */
+ delem = OFstatic_cast(DcmElement*, stack.top()->clone());
+--- a/dcmjpeg/libsrc/djcodece.cc
++++ b/dcmjpeg/libsrc/djcodece.cc
+@@ -1,6 +1,6 @@
+ /*
+ *
+- * Copyright (C) 2001-2022, OFFIS e.V.
++ * Copyright (C) 2001-2024, OFFIS e.V.
+ * All rights reserved. See COPYRIGHT file for details.
+ *
+ * This software and supporting documentation were developed by
+@@ -1397,17 +1397,17 @@
+ DcmElement *explanation = NULL;
+
+ DcmStack stack;
+- if ((dataset->search(DCM_WindowCenter, stack, ESM_fromHere, OFFalse)).good())
++ if ((dataset->search(DCM_WindowCenter, stack, ESM_fromHere, OFFalse)).good() && stack.top()->isElement())
+ {
+ center = OFreinterpret_cast(DcmElement*, stack.top());
+ }
+ stack.clear();
+- if ((dataset->search(DCM_WindowWidth, stack, ESM_fromHere, OFFalse)).good())
++ if ((dataset->search(DCM_WindowWidth, stack, ESM_fromHere, OFFalse)).good() && stack.top()->isElement())
+ {
+ width = OFreinterpret_cast(DcmElement*, stack.top());
+ }
+ stack.clear();
+- if ((dataset->search(DCM_WindowCenterWidthExplanation, stack, ESM_fromHere, OFFalse)).good())
++ if ((dataset->search(DCM_WindowCenterWidthExplanation, stack, ESM_fromHere, OFFalse)).good() && stack.top()->isElement())
+ {
+ explanation = OFreinterpret_cast(DcmElement*, stack.top());
+ }
+--- a/dcmnet/apps/storescu.cc
++++ b/dcmnet/apps/storescu.cc
+@@ -1138,6 +1138,12 @@
+ return OFFalse;
+ }
+
++ if (! stack.top()->isElement())
++ {
++ OFLOG_ERROR(storescuLogger, "updateStringAttributeValue: not a DcmElement: " << tag.getTagName() << " " << key);
++ return OFFalse;
++ }
++
+ DcmElement *elem = OFstatic_cast(DcmElement *, stack.top());
+
+ DcmVR vr(elem->ident());
+--- a/dcmnet/libsrc/dimcmd.cc
++++ b/dcmnet/libsrc/dimcmd.cc
+@@ -191,14 +191,16 @@
+ static OFCondition
+ getString(DcmDataset *obj, DcmTagKey t, char *s, int maxlen, OFBool *spacePadded)
+ {
+- DcmElement *elem;
++ DcmElement *elem = NULL;
+ DcmStack stack;
+ OFCondition ec = EC_Normal;
+ char* aString;
+
+ ec = obj->search(t, stack);
+- elem = (DcmElement*)stack.top();
+- if (ec == EC_Normal && elem != NULL) {
++ if (ec.good() && stack.top()->isElement())
++ elem = (DcmElement*)stack.top();
++
++ if (elem != NULL) {
+ if (elem->getLength() == 0) {
+ s[0] = '\0';
+ } else if (elem->getLength() > (Uint32)maxlen) {
+@@ -263,17 +265,19 @@
+ static OFCondition
+ getUS(DcmDataset *obj, DcmTagKey t, Uint16 *us)
+ {
+- DcmElement *elem;
++ DcmElement *elem = NULL;
+ DcmStack stack;
+ OFCondition ec = EC_Normal;
+
+ ec = obj->search(t, stack);
+- elem = (DcmElement*)stack.top();
+- if (ec == EC_Normal && elem != NULL) {
++ if (ec.good() && stack.top()->isElement())
++ elem = (DcmElement*)stack.top();
++
++ if (elem != NULL) {
+ ec = elem->getUint16(*us, 0);
+ }
+
+- return (ec == EC_Normal)?(EC_Normal):(DIMSE_PARSEFAILED);
++ return (ec.good())?(EC_Normal):(DIMSE_PARSEFAILED);
+ }
+
+ static OFCondition
+@@ -314,17 +318,19 @@
+ static OFCondition
+ getUL(DcmDataset *obj, DcmTagKey t, Uint32 *ul)
+ {
+- DcmElement *elem;
++ DcmElement *elem = NULL;
+ DcmStack stack;
+ OFCondition ec = EC_Normal;
+
+ ec = obj->search(t, stack);
+- elem = (DcmElement*)stack.top();
+- if (ec == EC_Normal && elem != NULL) {
++ if (ec.good() && stack.top()->isElement())
++ elem = (DcmElement*)stack.top();
++
++ if (elem != NULL) {
+ ec = elem->getUint32(*ul, 0);
+ }
+
+- return (ec == EC_Normal)?(EC_Normal):(DIMSE_PARSEFAILED);
++ return (ec.good())?(EC_Normal):(DIMSE_PARSEFAILED);
+ }
+
+ #if 0
+@@ -375,15 +381,17 @@
+ static OFCondition
+ getAttributeList(DcmDataset *obj, DcmTagKey t, Uint16 **lst, int *listCount)
+ {
+- DcmElement *elem;
++ DcmElement *elem = NULL;
+ DcmStack stack;
+ OFCondition ec = EC_Normal;
+ Uint16 *aList = NULL;
+ Uint32 nBytes = 0;
+
+ ec = obj->search(t, stack);
+- elem = (DcmElement*)stack.top();
+- if (ec == EC_Normal && elem != NULL) {
++ if (ec.good() && stack.top()->isElement())
++ elem = (DcmElement*)stack.top();
++
++ if (elem) {
+ nBytes = elem->getLength();
+ *listCount = (int)(nBytes / sizeof(Uint16));
+ if (*listCount > 0) {
+@@ -395,7 +403,7 @@
+ }
+ }
+
+- return (ec == EC_Normal)?(EC_Normal):(DIMSE_PARSEFAILED);
++ return (ec.good())?(EC_Normal):(DIMSE_PARSEFAILED);
+ }
+
+ /*
+--- a/dcmnet/libsrc/diutil.cc
++++ b/dcmnet/libsrc/diutil.cc
+@@ -159,23 +159,21 @@
+ OFBool
+ DU_getStringDOElement(DcmItem *obj, DcmTagKey t, char *s, size_t bufsize)
+ {
+- DcmByteString *elem;
+ DcmStack stack;
+- OFCondition ec = EC_Normal;
+ char* aString;
+
+- ec = obj->search(t, stack);
+- elem = (DcmByteString*) stack.top();
+- if (ec == EC_Normal && elem != NULL) {
++ OFCondition ec = obj->search(t, stack);
++ if (ec.good() && (stack.top() != NULL) && stack.top()->isElement()) {
++ DcmElement *elem = (DcmElement *) stack.top();
+ if (elem->getLength() == 0) {
+ s[0] = '\0';
+ } else {
+ ec = elem->getString(aString);
+- if (ec == EC_Normal)
++ if (ec.good())
+ OFStandard::strlcpy(s, aString, bufsize);
+ }
+ }
+- return (ec == EC_Normal);
++ return (ec.good());
+ }
+
+ OFBool
+@@ -193,7 +191,7 @@
+ ec = obj->insert(e, OFTrue);
+ }
+
+- return (ec == EC_Normal);
++ return (ec.good());
+ }
+
+ OFBool
+@@ -201,15 +199,15 @@
+ {
+ DcmElement *elem;
+ DcmStack stack;
+- OFCondition ec = EC_Normal;
+
+- ec = obj->search(t, stack);
+- elem = (DcmElement*) stack.top();
+- if (ec == EC_Normal && elem != NULL) {
+- ec = elem->getUint16(*us, 0);
++ OFCondition ec = obj->search(t, stack);
++ if (ec.good() && stack.top()->isElement())
++ {
++ elem = (DcmElement*) stack.top();
++ if (elem) ec = elem->getUint16(*us, 0);
+ }
+
+- return (ec == EC_Normal);
++ return (ec.good());
+ }
+
+ OFBool
+@@ -226,7 +224,7 @@
+ if (ec == EC_Normal) {
+ ec = obj->insert(e, OFTrue);
+ }
+- return (ec == EC_Normal);
++ return (ec.good());
+ }
+
+ OFBool
+--- a/dcmnet/libsrc/dstorscu.cc
++++ b/dcmnet/libsrc/dstorscu.cc
+@@ -484,7 +484,7 @@
+ OFFilename dirName;
+ OFStandard::getDirNameFromPath(dirName, filename, OFFalse /* assumeDirName */);
+ // iterate over all items (directory records) where ReferencedFileID is present
+- while (dataset->search(DCM_ReferencedFileID, stack, ESM_afterStackTop, OFTrue).good())
++ while (dataset->search(DCM_ReferencedFileID, stack, ESM_afterStackTop, OFTrue).good() && stack.top()->isElement())
+ {
+ // make sure that the dataset and element pointer are there
+ if (stack.card() > 1)
+--- a/dcmpstat/apps/dcmmklut.cc
++++ b/dcmpstat/apps/dcmmklut.cc
+@@ -971,7 +971,7 @@
+ {
+ // search existing sequence
+ DcmStack stack;
+- if (EC_Normal == dataset->search(DCM_PresentationLUTSequence, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dataset->search(DCM_PresentationLUTSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ dseq=(DcmSequenceOfItems *)stack.top();
+ }
+ if (dseq == NULL)
+@@ -992,7 +992,7 @@
+ {
+ // search existing sequence
+ DcmStack stack;
+- if (EC_Normal == dataset->search(DCM_VOILUTSequence, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dataset->search(DCM_VOILUTSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ dseq=(DcmSequenceOfItems *)stack.top();
+ }
+ if (dseq == NULL)
+--- a/dcmpstat/apps/dcmpschk.cc
++++ b/dcmpstat/apps/dcmpschk.cc
+@@ -652,7 +652,11 @@
+ OFOStringStream str;
+
+ ec = dset->search(key, stack, ESM_fromHere, OFFalse);
+- elem = (DcmElement*) stack.top();
++ if (ec.good() && stack.top()->isElement())
++ {
++ elem = (DcmElement*) stack.top();
++ }
++
+ if (elem)
+ elem->print(str, DCMTypes::PF_shortenLongTagValues);
+ else
+--- a/dcmpstat/libsrc/dviface.cc
++++ b/dcmpstat/libsrc/dviface.cc
+@@ -1425,14 +1425,14 @@
+ if (reference != NULL)
+ {
+ DcmStack stack;
+- if (dataset->search(DCM_ContentDescription, stack, ESM_fromHere, OFFalse) == EC_Normal)
++ if (dataset->search(DCM_ContentDescription, stack, ESM_fromHere, OFFalse) == EC_Normal && (stack.top()->ident() == EVR_LO))
+ {
+ char *value = NULL;
+ if ((*OFstatic_cast(DcmLongString *, stack.top())).getString(value) == EC_Normal)
+ reference->Description = value;
+ }
+ stack.clear();
+- if (dataset->search(DCM_ContentLabel, stack, ESM_fromHere, OFFalse) == EC_Normal)
++ if (dataset->search(DCM_ContentLabel, stack, ESM_fromHere, OFFalse) == EC_Normal && (stack.top()->ident() == EVR_LO))
+ {
+ char *value = NULL;
+ if ((*OFstatic_cast(DcmLongString *, stack.top())).getString(value) == EC_Normal)
+@@ -2843,12 +2843,12 @@
+ DcmDataset *dset = fileformat.getDataset();
+ if (dset)
+ {
+- if (EC_Normal == dset->search(DCM_SOPInstanceUID, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset->search(DCM_SOPInstanceUID, stack, ESM_fromHere, OFFalse) && stack.top()->isElement())
+ {
+ OFstatic_cast(DcmElement *, stack.top())->getString(instanceUID);
+ }
+ stack.clear();
+- if (EC_Normal == dset->search(DCM_SOPClassUID, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset->search(DCM_SOPClassUID, stack, ESM_fromHere, OFFalse) && stack.top()->isElement())
+ {
+ OFstatic_cast(DcmElement *, stack.top())->getString(classUID);
+ }
+@@ -3761,7 +3761,7 @@
+ DVPSPresentationLUT presentationLUT;
+ if (EC_Normal != presentationLUT.read(*dataset, OFFalse)) presentationLUT.setType(DVPSP_identity);
+ result = dataset->search(sopclassuid.getTag(), stack, ESM_fromHere, OFFalse);
+- if (EC_Normal == result)
++ if (EC_Normal == result && (stack.top()->ident() == EVR_UI))
+ {
+ char *sopclass = NULL;
+ sopclassuid = *OFstatic_cast(DcmUniqueIdentifier *, stack.top());
+--- a/dcmpstat/libsrc/dvpsabl.cc
++++ b/dcmpstat/libsrc/dvpsabl.cc
+@@ -1,6 +1,6 @@
+ /*
+ *
+- * Copyright (C) 1999-2010, OFFIS e.V.
++ * Copyright (C) 1999-2024, OFFIS e.V.
+ * All rights reserved. See COPYRIGHT file for details.
+ *
+ * This software and supporting documentation were developed by
+@@ -69,7 +69,7 @@
+ DcmSequenceOfItems *dseq=NULL;
+ DcmItem *ditem=NULL;
+
+- if (EC_Normal == dset.search(DCM_RETIRED_AnnotationContentSequence, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(DCM_RETIRED_AnnotationContentSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ {
+ dseq=(DcmSequenceOfItems *)stack.top();
+ if (dseq)
+--- a/dcmpstat/libsrc/dvpscu.cc
++++ b/dcmpstat/libsrc/dvpscu.cc
+@@ -1,6 +1,6 @@
+ /*
+ *
+- * Copyright (C) 1998-2020, OFFIS e.V.
++ * Copyright (C) 1998-2024, OFFIS e.V.
+ * All rights reserved. See COPYRIGHT file for details.
+ *
+ * This software and supporting documentation were developed by
+@@ -80,14 +80,14 @@
+
+ /* first we look for the Curve Data */
+ DcmTagKey key(0x5000 + group,0x3000);
+- if (EC_Normal == dset.search(key, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(key, stack, ESM_fromHere, OFFalse) && stack.top()->isElement())
+ {
+ d_curveData = (DcmElement *)(stack.top());
+ } else return EC_IllegalCall;
+
+ key.setElement(0x0005); // Curve Dimensions
+ stack.clear();
+- if (EC_Normal == dset.search(key, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(key, stack, ESM_fromHere, OFFalse) && stack.top()->isElement())
+ {
+ d_curveDimensions = (DcmElement *)(stack.top());
+ } else return EC_IllegalCall;
+@@ -101,42 +101,42 @@
+
+ key.setElement(0x0010); // Number of Points
+ stack.clear();
+- if (EC_Normal == dset.search(key, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(key, stack, ESM_fromHere, OFFalse) && stack.top()->isElement())
+ {
+ d_numberOfPoints = (DcmElement *)(stack.top());
+ } else return EC_IllegalCall;
+
+ key.setElement(0x0020); // Type of Data
+ stack.clear();
+- if (EC_Normal == dset.search(key, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(key, stack, ESM_fromHere, OFFalse) && stack.top()->isElement())
+ {
+ d_typeOfData = (DcmElement *)(stack.top());
+ } else return EC_IllegalCall;
+
+ key.setElement(0x0103); // Data Value Representation
+ stack.clear();
+- if (EC_Normal == dset.search(key, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(key, stack, ESM_fromHere, OFFalse) && stack.top()->isElement())
+ {
+ d_dataVR = (DcmElement *)(stack.top());
+ } else return EC_IllegalCall;
+
+ key.setElement(0x0022); // Curve Description
+ stack.clear();
+- if (EC_Normal == dset.search(key, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(key, stack, ESM_fromHere, OFFalse) && stack.top()->isElement())
+ {
+ d_curveDescription = (DcmElement *)(stack.top());
+ }
+
+ key.setElement(0x0030); // Axis Units
+ stack.clear();
+- if (EC_Normal == dset.search(key, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(key, stack, ESM_fromHere, OFFalse) && stack.top()->isElement())
+ {
+ d_axisUnits = (DcmElement *)(stack.top());
+ }
+
+ key.setElement(0x2500); // Curve Label
+ stack.clear();
+- if (EC_Normal == dset.search(key, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(key, stack, ESM_fromHere, OFFalse) && stack.top()->isElement())
+ {
+ d_curveLabel = (DcmElement *)(stack.top());
+ }
+--- a/dcmpstat/libsrc/dvpsdal.cc
++++ b/dcmpstat/libsrc/dvpsdal.cc
+@@ -1,6 +1,6 @@
+ /*
+ *
+- * Copyright (C) 1999-2010, OFFIS e.V.
++ * Copyright (C) 1999-2024, OFFIS e.V.
+ * All rights reserved. See COPYRIGHT file for details.
+ *
+ * This software and supporting documentation were developed by
+@@ -67,7 +67,7 @@
+ DcmSequenceOfItems *dseq=NULL;
+ DcmItem *ditem=NULL;
+
+- if (EC_Normal == dset.search(DCM_DisplayedAreaSelectionSequence, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(DCM_DisplayedAreaSelectionSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ {
+ dseq=(DcmSequenceOfItems *)stack.top();
+ if (dseq)
+--- a/dcmpstat/libsrc/dvpsfs.cc
++++ b/dcmpstat/libsrc/dvpsfs.cc
+@@ -1,6 +1,6 @@
+ /*
+ *
+- * Copyright (C) 1998-2021, OFFIS e.V.
++ * Copyright (C) 1998-2024, OFFIS e.V.
+ * All rights reserved. See COPYRIGHT file for details.
+ *
+ * This software and supporting documentation were developed by
+@@ -280,7 +280,7 @@
+ {
+ stack.clear();
+
+- if (rqDataset && (EC_Normal == rqDataset->search(DCM_ReferencedPresentationLUTSequence, stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search(DCM_ReferencedPresentationLUTSequence, stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_SQ))
+ {
+ DcmSequenceOfItems *seq=(DcmSequenceOfItems *)stack.top();
+ if (seq->card() ==1)
+@@ -480,7 +480,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)numberOfCopies.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)numberOfCopies.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_IS))
+ {
+ numberOfCopies = *((DcmIntegerString *)(stack.top()));
+ Sint32 numCopies=0;
+@@ -502,7 +502,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)printPriority.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)printPriority.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_CS))
+ {
+ printPriority = *((DcmCodeString *)(stack.top()));
+ OFString aString;
+@@ -523,7 +523,7 @@
+ {
+ Uint32 numMediumTypes = cfg.getTargetPrinterNumberOfMediumTypes(cfgname);
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)mediumType.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)mediumType.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_CS))
+ {
+ mediumType = *((DcmCodeString *)(stack.top()));
+ OFString theMedium;
+@@ -555,7 +555,7 @@
+ {
+ Uint32 numFilmDestination = cfg.getTargetPrinterNumberOfFilmDestinations(cfgname);
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)filmDestination.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)filmDestination.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_CS))
+ {
+ filmDestination = *((DcmCodeString *)(stack.top()));
+ OFString theDestination;
+@@ -586,7 +586,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)filmSessionLabel.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)filmSessionLabel.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_LO))
+ {
+ filmSessionLabel = *((DcmLongString *)(stack.top()));
+ ADD_TO_PDATASET(DcmLongString, filmSessionLabel)
+@@ -597,7 +597,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)ownerID.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)ownerID.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_SH))
+ {
+ ownerID = *((DcmShortString *)(stack.top()));
+ ADD_TO_PDATASET(DcmShortString, ownerID)
+@@ -611,7 +611,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)illumination.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)illumination.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US))
+ {
+ illumination = *((DcmUnsignedShort *)(stack.top()));
+ // we don't check illumination set by the user (for now)
+@@ -623,7 +623,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)reflectedAmbientLight.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)reflectedAmbientLight.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US))
+ {
+ reflectedAmbientLight = *((DcmUnsignedShort *)(stack.top()));
+ // we don't check reflected ambient light set by the user (for now)
+@@ -636,7 +636,7 @@
+ {
+ stack.clear();
+
+- if (rqDataset && (EC_Normal == rqDataset->search(DCM_ReferencedPresentationLUTSequence, stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search(DCM_ReferencedPresentationLUTSequence, stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_SQ))
+ {
+ DcmSequenceOfItems *seq=(DcmSequenceOfItems *)stack.top();
+ if (seq->card() ==1)
+--- a/dcmpstat/libsrc/dvpsgal.cc
++++ b/dcmpstat/libsrc/dvpsgal.cc
+@@ -1,6 +1,6 @@
+ /*
+ *
+- * Copyright (C) 1998-2010, OFFIS e.V.
++ * Copyright (C) 1998-2024, OFFIS e.V.
+ * All rights reserved. See COPYRIGHT file for details.
+ *
+ * This software and supporting documentation were developed by
+@@ -69,7 +69,7 @@
+ DcmSequenceOfItems *dseq=NULL;
+ DcmItem *ditem=NULL;
+
+- if (EC_Normal == dset.search(DCM_GraphicAnnotationSequence, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(DCM_GraphicAnnotationSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ {
+ dseq=(DcmSequenceOfItems *)stack.top();
+ if (dseq)
+--- a/dcmpstat/libsrc/dvpsgll.cc
++++ b/dcmpstat/libsrc/dvpsgll.cc
+@@ -1,6 +1,6 @@
+ /*
+ *
+- * Copyright (C) 1998-2017, OFFIS e.V.
++ * Copyright (C) 1998-2024, OFFIS e.V.
+ * All rights reserved. See COPYRIGHT file for details.
+ *
+ * This software and supporting documentation were developed by
+@@ -75,7 +75,7 @@
+ DcmSequenceOfItems *dseq=NULL;
+ DcmItem *ditem=NULL;
+
+- if (EC_Normal == dset.search(DCM_GraphicLayerSequence, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(DCM_GraphicLayerSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ {
+ dseq=(DcmSequenceOfItems *)stack.top();
+ if (dseq)
+--- a/dcmpstat/libsrc/dvpsgrl.cc
++++ b/dcmpstat/libsrc/dvpsgrl.cc
+@@ -1,6 +1,6 @@
+ /*
+ *
+- * Copyright (C) 1998-2010, OFFIS e.V.
++ * Copyright (C) 1998-2024, OFFIS e.V.
+ * All rights reserved. See COPYRIGHT file for details.
+ *
+ * This software and supporting documentation were developed by
+@@ -66,7 +66,7 @@
+ DcmSequenceOfItems *dseq=NULL;
+ DcmItem *ditem=NULL;
+
+- if (EC_Normal == dset.search(DCM_GraphicObjectSequence, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(DCM_GraphicObjectSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ {
+ dseq=(DcmSequenceOfItems *)stack.top();
+ if (dseq)
+--- a/dcmpstat/libsrc/dvpshlp.cc
++++ b/dcmpstat/libsrc/dvpshlp.cc
+@@ -178,7 +178,7 @@
+ {
+ item = seq.getItem(i);
+ stack.clear();
+- if (EC_Normal == item->search(DCM_ReferencedSOPClassUID, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == item->search(DCM_ReferencedSOPClassUID, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_UI))
+ {
+ aString.clear();
+ refuid = (DcmUniqueIdentifier *)(stack.top());
+--- a/dcmpstat/libsrc/dvpsib.cc
++++ b/dcmpstat/libsrc/dvpsib.cc
+@@ -1,6 +1,6 @@
+ /*
+ *
+- * Copyright (C) 1998-2018, OFFIS e.V.
++ * Copyright (C) 1998-2024, OFFIS e.V.
+ * All rights reserved. See COPYRIGHT file for details.
+ *
+ * This software and supporting documentation were developed by
+@@ -153,7 +153,7 @@
+ if (result==EC_Normal)
+ {
+ stack.clear();
+- if (EC_Normal == dset.search(DCM_ReferencedImageSequence, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(DCM_ReferencedImageSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ {
+ seq=(DcmSequenceOfItems *)stack.top();
+ if (seq->card() ==1)
+@@ -181,7 +181,7 @@
+ // check referenced presentation LUT sequence
+ // if there is any reference, it must refer to one of the presentation LUTs we are managing.
+ stack.clear();
+- if (EC_Normal == dset.search(DCM_ReferencedPresentationLUTSequence, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(DCM_ReferencedPresentationLUTSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ {
+ seq=(DcmSequenceOfItems *)stack.top();
+ if (seq->card() ==1)
+@@ -672,7 +672,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)imageBoxPosition.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)imageBoxPosition.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US))
+ {
+ imageBoxPosition = *((DcmUnsignedShort *)(stack.top()));
+ // the image box position is checked elsewhere
+@@ -688,7 +688,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)magnificationType.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)magnificationType.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_CS))
+ {
+ magnificationType = *((DcmCodeString *)(stack.top()));
+ Uint32 numMagnifications = cfg.getTargetPrinterNumberOfMagnificationTypes(cfgname);
+@@ -721,7 +721,7 @@
+ {
+
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)smoothingType.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)smoothingType.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_CS))
+ {
+ smoothingType = *((DcmCodeString *)(stack.top()));
+ Uint32 numSmoothings = cfg.getTargetPrinterNumberOfSmoothingTypes(cfgname);
+@@ -761,7 +761,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)configurationInformation.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)configurationInformation.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_ST))
+ {
+ configurationInformation = *((DcmShortText *)(stack.top()));
+ Uint32 numConfigurationInformation = cfg.getTargetPrinterNumberOfConfigurationSettings(cfgname);
+@@ -800,7 +800,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)polarity.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)polarity.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_CS))
+ {
+ polarity = *((DcmCodeString *)(stack.top()));
+ OFString thePolarity;
+@@ -820,7 +820,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)requestedImageSize.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)requestedImageSize.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_DS))
+ {
+ if (! cfg.getTargetPrinterSupportsRequestedImageSize(cfgname))
+ {
+@@ -841,7 +841,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)requestedDecimateCropBehavior.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)requestedDecimateCropBehavior.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_CS))
+ {
+ if (! cfg.getTargetPrinterSupportsDecimateCrop(cfgname))
+ {
+@@ -871,7 +871,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search(DCM_BasicGrayscaleImageSequence, stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search(DCM_BasicGrayscaleImageSequence, stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_SQ))
+ {
+ DcmSequenceOfItems *seq=(DcmSequenceOfItems *)stack.top();
+ if (seq->card() ==1)
+@@ -971,7 +971,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)samplesPerPixel.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)samplesPerPixel.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US))
+ {
+ samplesPerPixel = *((DcmUnsignedShort *)(stack.top()));
+ val = 0;
+@@ -994,7 +994,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)rows.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)rows.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US))
+ {
+ rows = *((DcmUnsignedShort *)(stack.top()));
+ val = 0;
+@@ -1017,7 +1017,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)columns.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)columns.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US))
+ {
+ columns = *((DcmUnsignedShort *)(stack.top()));
+ val = 0;
+@@ -1042,7 +1042,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)bitsStored.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)bitsStored.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US))
+ {
+ bitsStored = *((DcmUnsignedShort *)(stack.top()));
+ val = 0;
+@@ -1082,7 +1082,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)bitsAllocated.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)bitsAllocated.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US))
+ {
+ bitsAllocated = *((DcmUnsignedShort *)(stack.top()));
+ val = 0;
+@@ -1105,7 +1105,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)highBit.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)highBit.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US))
+ {
+ highBit = *((DcmUnsignedShort *)(stack.top()));
+ val = 0;
+@@ -1128,7 +1128,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)pixelRepresentation.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)pixelRepresentation.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US))
+ {
+ pixelRepresentation = *((DcmUnsignedShort *)(stack.top()));
+ val = 0;
+@@ -1151,7 +1151,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)photometricInterpretation.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)photometricInterpretation.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_CS))
+ {
+ photometricInterpretation = *((DcmCodeString *)(stack.top()));
+ OFString theColorModel;
+@@ -1175,7 +1175,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)pixelAspectRatio.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)pixelAspectRatio.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_IS))
+ {
+ pixelAspectRatio = *((DcmIntegerString *)(stack.top()));
+ if (pixelAspectRatio.getVM() != 2)
+@@ -1193,7 +1193,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search(DCM_PixelData, stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search(DCM_PixelData, stack, ESM_fromHere, OFFalse)) && stack.top()->isElement())
+ {
+ pixelData = new DcmPixelData(DCM_PixelData);
+ if (pixelData)
+--- a/dcmpstat/libsrc/dvpsibl.cc
++++ b/dcmpstat/libsrc/dvpsibl.cc
+@@ -1,6 +1,6 @@
+ /*
+ *
+- * Copyright (C) 1999-2010, OFFIS e.V.
++ * Copyright (C) 1999-2024, OFFIS e.V.
+ * All rights reserved. See COPYRIGHT file for details.
+ *
+ * This software and supporting documentation were developed by
+@@ -68,7 +68,7 @@
+ DcmSequenceOfItems *dseq=NULL;
+ DcmItem *ditem=NULL;
+
+- if (EC_Normal == dset.search(DCM_RETIRED_ImageBoxContentSequence, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(DCM_RETIRED_ImageBoxContentSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ {
+ dseq=(DcmSequenceOfItems *)stack.top();
+ if (dseq)
+--- a/dcmpstat/libsrc/dvpspll.cc
++++ b/dcmpstat/libsrc/dvpspll.cc
+@@ -1,6 +1,6 @@
+ /*
+ *
+- * Copyright (C) 1999-2022, OFFIS e.V.
++ * Copyright (C) 1999-2024, OFFIS e.V.
+ * All rights reserved. See COPYRIGHT file for details.
+ *
+ * This software and supporting documentation were developed by
+@@ -72,7 +72,7 @@
+ DcmSequenceOfItems *dseq=NULL;
+ DcmItem *ditem=NULL;
+
+- if (EC_Normal == dset.search(DCM_RETIRED_PresentationLUTContentSequence, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(DCM_RETIRED_PresentationLUTContentSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ {
+ dseq=(DcmSequenceOfItems *)stack.top();
+ if (dseq)
+--- a/dcmpstat/libsrc/dvpsril.cc
++++ b/dcmpstat/libsrc/dvpsril.cc
+@@ -71,7 +71,7 @@
+ DcmSequenceOfItems *dseq=NULL;
+ DcmItem *ditem=NULL;
+
+- if (EC_Normal == dset.search(DCM_ReferencedImageSequence, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(DCM_ReferencedImageSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ {
+ dseq=(DcmSequenceOfItems *)stack.top();
+ if (dseq)
+--- a/dcmpstat/libsrc/dvpsrsl.cc
++++ b/dcmpstat/libsrc/dvpsrsl.cc
+@@ -1,6 +1,6 @@
+ /*
+ *
+- * Copyright (C) 1998-2010, OFFIS e.V.
++ * Copyright (C) 1998-2024, OFFIS e.V.
+ * All rights reserved. See COPYRIGHT file for details.
+ *
+ * This software and supporting documentation were developed by
+@@ -69,7 +69,7 @@
+ DcmSequenceOfItems *dseq=NULL;
+ DcmItem *ditem=NULL;
+
+- if (EC_Normal == dset.search(DCM_ReferencedSeriesSequence, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(DCM_ReferencedSeriesSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ {
+ dseq=(DcmSequenceOfItems *)stack.top();
+ if (dseq)
+--- a/dcmpstat/libsrc/dvpssp.cc
++++ b/dcmpstat/libsrc/dvpssp.cc
+@@ -1,6 +1,6 @@
+ /*
+ *
+- * Copyright (C) 1998-2021, OFFIS e.V.
++ * Copyright (C) 1998-2024, OFFIS e.V.
+ * All rights reserved. See COPYRIGHT file for details.
+ *
+ * This software and supporting documentation were developed by
+@@ -328,7 +328,7 @@
+ if (result==EC_Normal)
+ {
+ stack.clear();
+- if (EC_Normal == dset.search(DCM_RETIRED_FilmBoxContentSequence, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(DCM_RETIRED_FilmBoxContentSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ {
+ seq=(DcmSequenceOfItems *)stack.top();
+ if (seq->card() ==1)
+@@ -362,7 +362,7 @@
+ // check referenced presentation LUT sequence
+ // if there is any reference, it must refer to one of the presentation LUTs we are managing.
+ stack.clear();
+- if (EC_Normal == item->search(DCM_ReferencedPresentationLUTSequence, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == item->search(DCM_ReferencedPresentationLUTSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ {
+ seq=(DcmSequenceOfItems *)stack.top();
+ if (seq->card() ==1)
+@@ -445,7 +445,7 @@
+ if (result==EC_Normal)
+ {
+ stack.clear();
+- if (EC_Normal == dset.search(DCM_RETIRED_PrintManagementCapabilitiesSequence, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(DCM_RETIRED_PrintManagementCapabilitiesSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ {
+ OFBool haveFilmBox = OFFalse;
+ OFBool haveGrayscaleImageBox = OFFalse;
+@@ -511,7 +511,7 @@
+ destination.clear();
+ printerName.clear();
+ stack.clear();
+- if (EC_Normal == dset.search(DCM_RETIRED_PrinterCharacteristicsSequence, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(DCM_RETIRED_PrinterCharacteristicsSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ {
+ seq = (DcmSequenceOfItems *)stack.top();
+ if (seq->card() > 0)
+@@ -1536,7 +1536,7 @@
+ {
+ // N-CREATE was successful, now evaluate Referenced Image Box SQ
+ stack.clear();
+- if (EC_Normal == attributeListOut->search(DCM_ReferencedImageBoxSequence, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == attributeListOut->search(DCM_ReferencedImageBoxSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ {
+ seq=(DcmSequenceOfItems *)stack.top();
+ numItems = (size_t)seq->card();
+@@ -1559,7 +1559,7 @@
+ // evaluate Referenced Basic Annotation Box SQ if present
+ stack.clear();
+ annotationContentList.clearAnnotationSOPInstanceUIDs();
+- if (EC_Normal == attributeListOut->search(DCM_ReferencedBasicAnnotationBoxSequence, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == attributeListOut->search(DCM_ReferencedBasicAnnotationBoxSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ {
+ seq=(DcmSequenceOfItems *)stack.top();
+ numItems = (size_t)seq->card();
+@@ -2419,7 +2419,7 @@
+ {
+ stack.clear();
+
+- if (rqDataset && (EC_Normal == rqDataset->search(DCM_ReferencedPresentationLUTSequence, stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search(DCM_ReferencedPresentationLUTSequence, stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_SQ))
+ {
+ DcmSequenceOfItems *seq=(DcmSequenceOfItems *)stack.top();
+ if (seq->card() ==1)
+@@ -2487,7 +2487,7 @@
+ {
+ stack.clear();
+
+- if (rqDataset && (EC_Normal == rqDataset->search(DCM_ReferencedFilmSessionSequence, stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search(DCM_ReferencedFilmSessionSequence, stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_SQ))
+ {
+ DcmUniqueIdentifier classUID(DCM_ReferencedSOPClassUID);
+ DcmUniqueIdentifier instanceUID(DCM_ReferencedSOPInstanceUID);
+@@ -2706,7 +2706,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)magnificationType.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)magnificationType.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_CS))
+ {
+ magnificationType = *((DcmCodeString *)(stack.top()));
+ Uint32 numMagnifications = cfg.getTargetPrinterNumberOfMagnificationTypes(cfgname);
+@@ -2739,7 +2739,7 @@
+ {
+
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)smoothingType.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)smoothingType.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_CS))
+ {
+ smoothingType = *((DcmCodeString *)(stack.top()));
+ Uint32 numSmoothings = cfg.getTargetPrinterNumberOfSmoothingTypes(cfgname);
+@@ -2781,7 +2781,7 @@
+ {
+
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)borderDensity.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)borderDensity.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_CS))
+ {
+ borderDensity = *((DcmCodeString *)(stack.top()));
+ Uint32 numBorderDensities = cfg.getTargetPrinterNumberOfBorderDensities(cfgname);
+@@ -2832,7 +2832,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)emptyImageDensity.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)emptyImageDensity.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_CS))
+ {
+ emptyImageDensity = *((DcmCodeString *)(stack.top()));
+ Uint32 numEmptyImageDensities = cfg.getTargetPrinterNumberOfEmptyImageDensities(cfgname);
+@@ -2883,7 +2883,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)maxDensity.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)maxDensity.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US))
+ {
+ maxDensity = *((DcmUnsignedShort *)(stack.top()));
+ // we don't check a max density set by the user (for now)
+@@ -2895,7 +2895,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)minDensity.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)minDensity.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US))
+ {
+ minDensity = *((DcmUnsignedShort *)(stack.top()));
+ Uint32 numMinDensities = cfg.getTargetPrinterNumberOfMinDensities(cfgname);
+@@ -2917,7 +2917,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)trim.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)trim.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_CS))
+ {
+ trim = *((DcmCodeString *)(stack.top()));
+
+@@ -2945,7 +2945,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)configurationInformation.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)configurationInformation.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_ST))
+ {
+ configurationInformation = *((DcmShortText *)(stack.top()));
+ Uint32 numConfigurationInformation = cfg.getTargetPrinterNumberOfConfigurationSettings(cfgname);
+@@ -2987,7 +2987,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)illumination.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)illumination.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US))
+ {
+ illumination = *((DcmUnsignedShort *)(stack.top()));
+ // we don't check illumination set by the user (for now)
+@@ -2999,7 +2999,7 @@
+ if (result)
+ {
+ stack.clear();
+- if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)reflectedAmbientLight.getTag(), stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search((DcmTagKey &)reflectedAmbientLight.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US))
+ {
+ reflectedAmbientLight = *((DcmUnsignedShort *)(stack.top()));
+ // we don't check reflected ambient light set by the user (for now)
+@@ -3012,7 +3012,7 @@
+ {
+ stack.clear();
+
+- if (rqDataset && (EC_Normal == rqDataset->search(DCM_ReferencedPresentationLUTSequence, stack, ESM_fromHere, OFFalse)))
++ if (rqDataset && (EC_Normal == rqDataset->search(DCM_ReferencedPresentationLUTSequence, stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_SQ))
+ {
+ DcmSequenceOfItems *seq=(DcmSequenceOfItems *)stack.top();
+ if (seq->card() ==1)
+--- a/dcmpstat/libsrc/dvpstxl.cc
++++ b/dcmpstat/libsrc/dvpstxl.cc
+@@ -1,6 +1,6 @@
+ /*
+ *
+- * Copyright (C) 1998-2010, OFFIS e.V.
++ * Copyright (C) 1998-2024, OFFIS e.V.
+ * All rights reserved. See COPYRIGHT file for details.
+ *
+ * This software and supporting documentation were developed by
+@@ -66,7 +66,7 @@
+ DcmSequenceOfItems *dseq=NULL;
+ DcmItem *ditem=NULL;
+
+- if (EC_Normal == dset.search(DCM_TextObjectSequence, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(DCM_TextObjectSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ {
+ dseq=(DcmSequenceOfItems *)stack.top();
+ if (dseq)
+--- a/dcmpstat/libsrc/dvpsvll.cc
++++ b/dcmpstat/libsrc/dvpsvll.cc
+@@ -1,6 +1,6 @@
+ /*
+ *
+- * Copyright (C) 1998-2010, OFFIS e.V.
++ * Copyright (C) 1998-2024, OFFIS e.V.
+ * All rights reserved. See COPYRIGHT file for details.
+ *
+ * This software and supporting documentation were developed by
+@@ -66,7 +66,7 @@
+ DcmSequenceOfItems *dseq=NULL;
+ DcmItem *ditem=NULL;
+
+- if (EC_Normal == dset.search(DCM_VOILUTSequence, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(DCM_VOILUTSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ {
+ dseq=(DcmSequenceOfItems *)stack.top();
+ if (dseq)
+--- a/dcmrt/libsrc/drttypes.cc
++++ b/dcmrt/libsrc/drttypes.cc
+@@ -1,14 +1,12 @@
+ /*
+ *
+- * Copyright (c) 2008-2021, OFFIS e.V. and ICSMED AG, Oldenburg, Germany
+- * Copyright (C) 2013-2021, J. Riesmeier, Oldenburg, Germany
++ * Copyright (c) 2008-2024, OFFIS e.V. and ICSMED AG, Oldenburg, Germany
++ * Copyright (C) 2013-2024, J. Riesmeier, Oldenburg, Germany
+ * All rights reserved. See COPYRIGHT file for details.
+ *
+ * Source file for class DRTTypes
+ *
+ * Generated manually based on dsrtypes.cc
+- * File created on 2008-12-05
+- * Last modified on 2016-02-12 by Riesmeier
+ *
+ */
+
+@@ -212,7 +210,7 @@
+ {
+ DcmStack stack;
+ OFCondition result = dataset.search(tagKey, stack, ESM_fromHere, OFFalse /*searchIntoSub*/);
+- if (result.good())
++ if (result.good() && stack.top()->isElement())
+ {
+ DcmElement *element = OFstatic_cast(DcmElement *, stack.top());
+ if (element != NULL)
+--- a/dcmsign/libsrc/dcsignat.cc
++++ b/dcmsign/libsrc/dcsignat.cc
+@@ -102,7 +102,7 @@
+ macid = 0xFFFF;
+ DcmStack stack;
+ OFCondition result = item.search(DCM_MACIDNumber, stack, ESM_fromHere, OFFalse);
+- if (result.good() && (stack.top()->isLeaf()))
++ if (result.good() && (stack.top()->isElement()))
+ {
+ result = ((DcmElement *)(stack.top()))->getUint16(macid);
+ }
+@@ -732,7 +732,7 @@
+ // read MAC Calculation Transfer Syntax UID
+ if (result.good())
+ {
+- if ((selectedMacParametersItem->search(DCM_MACCalculationTransferSyntaxUID, stack, ESM_fromHere, OFFalse)).good() && (stack.top()->isLeaf()))
++ if ((selectedMacParametersItem->search(DCM_MACCalculationTransferSyntaxUID, stack, ESM_fromHere, OFFalse)).good() && (stack.top()->isElement()))
+ {
+ char *uid = NULL;
+ if ((((DcmElement *)(stack.top()))->getString(uid)).good())
+@@ -748,7 +748,7 @@
+ if (result.good())
+ {
+ stack.clear();
+- if ((selectedMacParametersItem->search(DCM_MACAlgorithm, stack, ESM_fromHere, OFFalse)).good() && (stack.top()->isLeaf()))
++ if ((selectedMacParametersItem->search(DCM_MACAlgorithm, stack, ESM_fromHere, OFFalse)).good() && (stack.top()->isElement()))
+ {
+ OFString macidentifier;
+ if ((((DcmElement *)(stack.top()))->getOFString(macidentifier, 0)).good())
+@@ -781,7 +781,7 @@
+ if (result.good())
+ {
+ stack.clear();
+- if ((selectedSignatureItem->search(DCM_Signature, stack, ESM_fromHere, OFFalse)).good() && (stack.top()->isLeaf()))
++ if ((selectedSignatureItem->search(DCM_Signature, stack, ESM_fromHere, OFFalse)).good() && (stack.top()->ident() == EVR_OB))
+ {
+ signature = new DcmOtherByteOtherWord(*((DcmOtherByteOtherWord *)(stack.top())));
+ if (signature == NULL) result = EC_MemoryExhausted;
+@@ -958,7 +958,7 @@
+ DcmStack stack;
+
+ // read MAC Calculation Transfer Syntax UID
+- if ((selectedMacParametersItem->search(DCM_MACCalculationTransferSyntaxUID, stack, ESM_fromHere, OFFalse)).good() && (stack.top()->isLeaf()))
++ if ((selectedMacParametersItem->search(DCM_MACCalculationTransferSyntaxUID, stack, ESM_fromHere, OFFalse)).good() && (stack.top()->isElement()))
+ {
+ char *uid = NULL;
+ if ((((DcmElement *)(stack.top()))->getString(uid)).good() && uid)
+@@ -1003,7 +1003,7 @@
+ DcmStack stack;
+
+ // read MAC Algorithm
+- if ((selectedMacParametersItem->search(DCM_MACAlgorithm, stack, ESM_fromHere, OFFalse)).good() && (stack.top()->isLeaf()))
++ if ((selectedMacParametersItem->search(DCM_MACAlgorithm, stack, ESM_fromHere, OFFalse)).good() && (stack.top()->isElement()))
+ {
+ if ((((DcmElement *)(stack.top()))->getOFString(str, 0)).good()) result = EC_Normal;
+ }
+@@ -1018,7 +1018,7 @@
+ DcmStack stack;
+
+ // read signature UID
+- if ((selectedSignatureItem->search(DCM_DigitalSignatureUID, stack, ESM_fromHere, OFFalse)).good() && (stack.top()->isLeaf()))
++ if ((selectedSignatureItem->search(DCM_DigitalSignatureUID, stack, ESM_fromHere, OFFalse)).good() && (stack.top()->isElement()))
+ {
+ if ((((DcmElement *)(stack.top()))->getOFString(str, 0)).good()) result = EC_Normal;
+ }
+@@ -1046,7 +1046,7 @@
+ DcmStack stack;
+
+ // read signature date/time
+- if ((selectedSignatureItem->search(DCM_DigitalSignatureDateTime, stack, ESM_fromHere, OFFalse)).good() && (stack.top()->isLeaf()))
++ if ((selectedSignatureItem->search(DCM_DigitalSignatureDateTime, stack, ESM_fromHere, OFFalse)).good() && (stack.top()->isElement()))
+ {
+ if ((((DcmElement *)(stack.top()))->getOFString(str, 0)).good()) result = EC_Normal;
+ }
+@@ -1117,7 +1117,7 @@
+ // check MAC Calculation Transfer Syntax UID
+ if (result.good())
+ {
+- if ((selectedMacParametersItem->search(DCM_MACCalculationTransferSyntaxUID, stack, ESM_fromHere, OFFalse)).good() && (stack.top()->isLeaf()))
++ if ((selectedMacParametersItem->search(DCM_MACCalculationTransferSyntaxUID, stack, ESM_fromHere, OFFalse)).good() && (stack.top()->isElement()))
+ {
+ char *uid = NULL;
+ if ((((DcmElement *)(stack.top()))->getString(uid)).good())
+@@ -1140,7 +1140,7 @@
+ {
+ E_MACType mac = EMT_RIPEMD160;
+ stack.clear();
+- if ((selectedMacParametersItem->search(DCM_MACAlgorithm, stack, ESM_fromHere, OFFalse)).good() && (stack.top()->isLeaf()))
++ if ((selectedMacParametersItem->search(DCM_MACAlgorithm, stack, ESM_fromHere, OFFalse)).good() && (stack.top()->isElement()))
+ {
+ OFString macidentifier;
+ if ((((DcmElement *)(stack.top()))->getOFString(macidentifier, 0)).good())
+--- a/dcmsign/libsrc/sicert.cc
++++ b/dcmsign/libsrc/sicert.cc
+@@ -147,7 +147,7 @@
+ OFString aString;
+ DcmStack stack;
+ result = item.search(DCM_CertificateType, stack, ESM_fromHere, OFFalse);
+- if (result.good())
++ if (result.good() && stack.top()->isElement())
+ {
+ result = ((DcmElement *)(stack.top()))->getOFString(aString, 0);
+ if (result.good())
+@@ -156,7 +156,7 @@
+ {
+ stack.clear();
+ result = item.search(DCM_CertificateOfSigner, stack, ESM_fromHere, OFFalse);
+- if (result.good())
++ if (result.good() && stack.top()->isElement())
+ {
+ DcmElement *cert = (DcmElement *)stack.top();
+ Uint8 *data = NULL;
+--- a/dcmsr/libsrc/dsrtypes.cc
++++ b/dcmsr/libsrc/dsrtypes.cc
+@@ -1176,7 +1176,7 @@
+ DcmStack stack;
+ const DcmTagKey tagKey = delem.getTag();
+ OFCondition result = dataset.search(tagKey, stack, ESM_fromHere, OFFalse /*searchIntoSub*/);
+- if (result.good())
++ if (result.good() && stack.top()->isElement())
+ {
+ /* copy object from search stack */
+ result = delem.copyFrom(*stack.top());
+@@ -1201,7 +1201,7 @@
+ {
+ DcmStack stack;
+ OFCondition result = dataset.search(tagKey, stack, ESM_fromHere, OFFalse /*searchIntoSub*/);
+- if (result.good())
++ if (result.good() && stack.top()->isElement())
+ {
+ DcmElement *delem = OFstatic_cast(DcmElement *, stack.top());
+ /* we need a reference to the original element in order to determine the SpecificCharacterSet */
=====================================
debian/patches/0002-Fixed-unchecked-typecasts-and-fixed-LUT-handling.patch
=====================================
@@ -0,0 +1,481 @@
+From af4672659ef883f19c60dd16eedc8875b3bad93a Mon Sep 17 00:00:00 2001
+From: Marco Eichelberg <dicom at offis.de>
+Date: Mon, 15 Apr 2024 12:19:33 +0200
+Subject: Fixed unchecked typecasts and fixed LUT handling.
+Bug-Debian: https://bugs.debian.org/1070207
+Forwarded: not-needed
+
+This commit adds further fixes for unchecked typecasts of DcmItem::search()
+results (see description of previous commit). Furthermore, this commit
+specifically addresses the handling of look-up tables (LUTs) in module
+dcmpstat, where attribute (0028,3006) LUTData may use either US or OW
+value representation, and (0028,3002) LUTDescriptor may be either US or SS.
+The code should now properly handle all permitted value representations.
+LUTData is now always written as OW in order to avoid the 64k size limit
+for US in explicit VR encoding.
+
+Thanks to Martin Zeiser from the Cisco Talos team
+<vulndiscovery at external.cisco.com> for the bug report (TALOS-2024-1957).
+
+Together with the previous commit, this closes DCMTK issue #1120.
+---
+ dcmpstat/libsrc/dcmpstat.cc | 40 ++++++++++++++++-------
+ dcmpstat/libsrc/dvpspl.cc | 34 ++++++++++++++------
+ dcmpstat/libsrc/dvpssv.cc | 34 ++++++++++++++------
+ dcmpstat/libsrc/dvpssvl.cc | 29 ++++++++++-------
+ dcmpstat/libsrc/dvpstat.cc | 63 +++++++++++++++++--------------------
+ dcmpstat/libsrc/dvpsvl.cc | 19 +++++++++--
+ 6 files changed, 140 insertions(+), 79 deletions(-)
+
+--- a/dcmpstat/libsrc/dcmpstat.cc
++++ b/dcmpstat/libsrc/dcmpstat.cc
+@@ -384,12 +384,16 @@
+ {
+ item = seq->getItem(0);
+ stack.clear();
+- // LUTDescriptor can be US or SS. For now we only handle US.
++
++ // LUTDescriptor can be US or SS
+ if ((EC_Normal == item->search((DcmTagKey &)modalityLUTDescriptor.getTag(),
+- stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US))
++ stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US || stack.top()->ident() == EVR_SS))
+ {
+- modalityLUTDescriptor = *((DcmUnsignedShort *)(stack.top()));
++ // We explicitly use DcmElement::operator=(), which works for US and SS
++ DcmElement *mLUTDescriptor = &modalityLUTDescriptor;
++ mLUTDescriptor->operator=(* OFstatic_cast(DcmElement *, stack.top()));
+ }
++
+ stack.clear();
+ if ((EC_Normal == item->search((DcmTagKey &)modalityLUTExplanation.getTag(),
+ stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_LO))
+@@ -400,9 +404,11 @@
+
+ // LUTData can be OW, US or SS. For now we only handle US.
+ if ((EC_Normal == item->search((DcmTagKey &)modalityLUTData.getTag(),
+- stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US))
++ stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US || stack.top()->ident() == EVR_OW))
+ {
+- modalityLUTData = *((DcmUnsignedShort *)(stack.top()));
++ // we deliberately call DcmElement::operator=() here, which will work for both DcmUnsignedShort and DcmOtherByteOtherWord parameters
++ DcmElement *mdata = &modalityLUTData;
++ mdata->operator=(*(DcmElement *)(stack.top()));
+ }
+ stack.clear();
+ if ((EC_Normal == item->search((DcmTagKey &)modalityLUTType.getTag(),
+@@ -879,11 +885,13 @@
+ {
+ item = seq->getItem(0);
+ stack.clear();
+- // LUTDescriptor can be US or SS. For now we only handle US.
++ // LUTDescriptor can be US or SS
+ if ((EC_Normal == item->search((DcmTagKey &)modalityLUTDescriptor.getTag(),
+- stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US))
++ stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US || stack.top()->ident() == EVR_SS))
+ {
+- modalityLUTDescriptor = *((DcmUnsignedShort *)(stack.top()));
++ // We explicitly use DcmElement::operator=(), which works for US and SS
++ DcmElement *mLUTDescriptor = &modalityLUTDescriptor;
++ mLUTDescriptor->operator=(* OFstatic_cast(DcmElement *, stack.top()));
+ }
+ stack.clear();
+ if ((EC_Normal == item->search((DcmTagKey &)modalityLUTExplanation.getTag(),
+@@ -895,9 +903,11 @@
+
+ // LUTData can be OW, US or SS. For now we only handle US.
+ if ((EC_Normal == item->search((DcmTagKey &)modalityLUTData.getTag(),
+- stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US))
++ stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US || stack.top()->ident() == EVR_OW))
+ {
+- modalityLUTData = *((DcmUnsignedShort *)(stack.top()));
++ // we deliberately call DcmElement::operator=() here, which will work for both DcmUnsignedShort and DcmOtherByteOtherWord parameters
++ DcmElement *mdata = &modalityLUTData;
++ mdata->operator=(*(DcmElement *)(stack.top()));
+ }
+ stack.clear();
+ if ((EC_Normal == item->search((DcmTagKey &)modalityLUTType.getTag(),
+@@ -1247,10 +1257,16 @@
+ dseq = new DcmSequenceOfItems(DCM_ModalityLUTSequence);
+ if (dseq)
+ {
+- delem = new DcmUnsignedShort(modalityLUTDescriptor);
++ // we clone modalityLUTDescriptor in order to retain the VR (US or SS)
++ delem = OFstatic_cast(DcmElement *, modalityLUTDescriptor.clone());
+ if (delem) ditem->insert(delem, OFTrue /*replaceOld*/); else result=EC_MemoryExhausted;
+- delem = new DcmUnsignedShort(modalityLUTData);
++
++ // we write LUTData as OW in order to avoid the 64 kByte limit for US
++ delem = new DcmOtherByteOtherWord(DCM_LUTData);
++ delem->operator=(modalityLUTData);
++ OFstatic_cast(DcmOtherByteOtherWord *, delem)->setVR(EVR_OW);
+ if (delem) ditem->insert(delem, OFTrue /*replaceOld*/); else result=EC_MemoryExhausted;
++
+ delem = new DcmLongString(modalityLUTType);
+ if (delem) ditem->insert(delem, OFTrue /*replaceOld*/); else result=EC_MemoryExhausted;
+ if (modalityLUTExplanation.getLength() >0)
+--- a/dcmpstat/libsrc/dvpspl.cc
++++ b/dcmpstat/libsrc/dvpspl.cc
+@@ -1,6 +1,6 @@
+ /*
+ *
+- * Copyright (C) 1999-2018, OFFIS e.V.
++ * Copyright (C) 1999-2024, OFFIS e.V.
+ * All rights reserved. See COPYRIGHT file for details.
+ *
+ * This software and supporting documentation were developed by
+@@ -24,6 +24,7 @@
+ #include "dcmtk/dcmdata/dcdeftag.h"
+ #include "dcmtk/dcmdata/dcsequen.h"
+ #include "dcmtk/dcmdata/dcvrcs.h"
++#include "dcmtk/dcmdata/dcvrobow.h"
+ #include "dcmtk/dcmpstat/dvpspl.h"
+ #include "dcmtk/dcmpstat/dvpsdef.h" /* for constants and macros */
+ #include "dcmtk/dcmnet/dimse.h"
+@@ -79,29 +80,36 @@
+ if (result==EC_Normal)
+ {
+ stack.clear();
+- if (EC_Normal == dset.search(DCM_PresentationLUTSequence, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(DCM_PresentationLUTSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ {
+ seq=(DcmSequenceOfItems *)stack.top();
+ if (seq->card() ==1)
+ {
+ item = seq->getItem(0);
+ stack.clear();
+- if (EC_Normal == item->search((DcmTagKey &)presentationLUTDescriptor.getTag(),
+- stack, ESM_fromHere, OFFalse))
++
++ // LUTDescriptor can be US or SS
++ if ((EC_Normal == item->search((DcmTagKey &)presentationLUTDescriptor.getTag(),
++ stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US || stack.top()->ident() == EVR_SS))
+ {
+- presentationLUTDescriptor = *((DcmUnsignedShort *)(stack.top()));
++ // We explicitly use DcmElement::operator=(), which works for US and SS
++ DcmElement *pLUTDescriptor = &presentationLUTDescriptor;
++ pLUTDescriptor->operator=(* OFstatic_cast(DcmElement *, stack.top()));
+ }
++
+ stack.clear();
+ if (EC_Normal == item->search((DcmTagKey &)presentationLUTExplanation.getTag(),
+- stack, ESM_fromHere, OFFalse))
++ stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_LO))
+ {
+ presentationLUTExplanation = *((DcmLongString *)(stack.top()));
+ }
+ stack.clear();
+ if (EC_Normal == item->search((DcmTagKey &)presentationLUTData.getTag(),
+- stack, ESM_fromHere, OFFalse))
++ stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_US || stack.top()->ident() == EVR_OW))
+ {
+- presentationLUTData = *((DcmUnsignedShort *)(stack.top()));
++ // we deliberately call DcmElement::operator=() here, which will work for both DcmUnsignedShort and DcmOtherByteOtherWord parameters
++ DcmElement *pldata = &presentationLUTData;
++ pldata->operator=(*(DcmElement *)(stack.top()));
+ }
+ } else {
+ result=EC_TagNotFound;
+@@ -187,10 +195,16 @@
+ dseq = new DcmSequenceOfItems(DCM_PresentationLUTSequence);
+ if (dseq)
+ {
+- delem = new DcmUnsignedShort(presentationLUTDescriptor);
++ // we clone presentationLUTDescriptor in order to retain the VR (US or SS)
++ delem = OFstatic_cast(DcmElement *, presentationLUTDescriptor.clone());
+ if (delem) ditem->insert(delem, OFTrue /*replaceOld*/); else result=EC_MemoryExhausted;
+- delem = new DcmUnsignedShort(presentationLUTData);
++
++ // we write LUTData as OW in order to avoid the 64 kByte limit for US
++ delem = new DcmOtherByteOtherWord(DCM_LUTData);
++ delem->operator=(presentationLUTData);
++ OFstatic_cast(DcmOtherByteOtherWord *, delem)->setVR(EVR_OW);
+ if (delem) ditem->insert(delem, OFTrue /*replaceOld*/); else result=EC_MemoryExhausted;
++
+ if (presentationLUTExplanation.getLength() >0)
+ {
+ delem = new DcmLongString(presentationLUTExplanation);
+--- a/dcmpstat/libsrc/dvpssv.cc
++++ b/dcmpstat/libsrc/dvpssv.cc
+@@ -1,6 +1,6 @@
+ /*
+ *
+- * Copyright (C) 1998-2018, OFFIS e.V.
++ * Copyright (C) 1998-2024, OFFIS e.V.
+ * All rights reserved. See COPYRIGHT file for details.
+ *
+ * This software and supporting documentation were developed by
+@@ -23,6 +23,7 @@
+ #include "dcmtk/config/osconfig.h" /* make sure OS specific configuration is included first */
+ #include "dcmtk/dcmdata/dcdeftag.h"
+ #include "dcmtk/dcmdata/dcsequen.h"
++#include "dcmtk/dcmdata/dcvrobow.h"
+ #include "dcmtk/dcmpstat/dvpssv.h"
+ #include "dcmtk/dcmpstat/dvpsri.h" /* for DVPSReferencedImage */
+ #include "dcmtk/dcmpstat/dvpsrsl.h" /* DVPSReferencedSeries_PList */
+@@ -75,29 +76,36 @@
+ if (result==EC_Normal)
+ {
+ stack.clear();
+- if (EC_Normal == dset.search(DCM_VOILUTSequence, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(DCM_VOILUTSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ {
+ seq=(DcmSequenceOfItems *)stack.top();
+ if (seq->card() ==1)
+ {
+ item = seq->getItem(0);
+ stack.clear();
+- if (EC_Normal == item->search((DcmTagKey &)voiLUTDescriptor.getTag(),
+- stack, ESM_fromHere, OFFalse))
++
++ // LUTDescriptor can be US or SS
++ if ((EC_Normal == item->search((DcmTagKey &)voiLUTDescriptor.getTag(),
++ stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US || stack.top()->ident() == EVR_SS))
+ {
+- voiLUTDescriptor = *((DcmUnsignedShort *)(stack.top()));
++ // We explicitly use DcmElement::operator=(), which works for US and SS
++ DcmElement *vLUTDescriptor = &voiLUTDescriptor;
++ vLUTDescriptor->operator=(* OFstatic_cast(DcmElement *, stack.top()));
+ }
++
+ stack.clear();
+ if (EC_Normal == item->search((DcmTagKey &)voiLUTExplanation.getTag(),
+- stack, ESM_fromHere, OFFalse))
++ stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_LO))
+ {
+ voiLUTExplanation = *((DcmLongString *)(stack.top()));
+ }
+ stack.clear();
+ if (EC_Normal == item->search((DcmTagKey &)voiLUTData.getTag(),
+- stack, ESM_fromHere, OFFalse))
++ stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_US || stack.top()->ident() == EVR_OW))
+ {
+- voiLUTData = *((DcmUnsignedShort *)(stack.top()));
++ // we deliberately call DcmElement::operator=() here, which will work for both DcmUnsignedShort and DcmOtherByteOtherWord parameters
++ DcmElement *vldata = &voiLUTData;
++ vldata->operator=(*(DcmElement *)(stack.top()));
+ }
+ } else {
+ result=EC_TagNotFound;
+@@ -177,10 +185,16 @@
+ dseq = new DcmSequenceOfItems(DCM_VOILUTSequence);
+ if (dseq)
+ {
+- delem = new DcmUnsignedShort(voiLUTDescriptor);
++ // we clone voiLUTDescriptor in order to retain the VR (US or SS)
++ delem = OFstatic_cast(DcmElement *, voiLUTDescriptor.clone());
+ if (delem) ditem->insert(delem, OFTrue /*replaceOld*/); else result=EC_MemoryExhausted;
+- delem = new DcmUnsignedShort(voiLUTData);
++
++ // we write LUTData as OW in order to avoid the 64 kByte limit for US
++ delem = new DcmOtherByteOtherWord(DCM_LUTData);
++ delem->operator=(voiLUTData);
++ OFstatic_cast(DcmOtherByteOtherWord *, delem)->setVR(EVR_OW);
+ if (delem) ditem->insert(delem, OFTrue /*replaceOld*/); else result=EC_MemoryExhausted;
++
+ if (voiLUTExplanation.getLength() >0)
+ {
+ delem = new DcmLongString(voiLUTExplanation);
+--- a/dcmpstat/libsrc/dvpssvl.cc
++++ b/dcmpstat/libsrc/dvpssvl.cc
+@@ -71,8 +71,8 @@
+ DVPSSoftcopyVOI *newImage = NULL;
+ DcmSequenceOfItems *dseq=NULL;
+ DcmItem *ditem=NULL;
+-
+- if (EC_Normal == dset.search(DCM_SoftcopyVOILUTSequence, stack, ESM_fromHere, OFFalse))
++
++ if (EC_Normal == dset.search(DCM_SoftcopyVOILUTSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ {
+ dseq=(DcmSequenceOfItems *)stack.top();
+ if (dseq)
+@@ -248,29 +248,36 @@
+ if (result==EC_Normal)
+ {
+ stack.clear();
+- if (EC_Normal == dset.search(DCM_VOILUTSequence, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dset.search(DCM_VOILUTSequence, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_SQ))
+ {
+ seq=(DcmSequenceOfItems *)stack.top();
+ if (seq->card() > 0)
+ {
+ item = seq->getItem(0);
+ stack.clear();
+- if (EC_Normal == item->search((DcmTagKey &)voiLUTDescriptor.getTag(),
+- stack, ESM_fromHere, OFFalse))
++
++ // LUTDescriptor can be US or SS
++ if ((EC_Normal == item->search((DcmTagKey &)voiLUTDescriptor.getTag(),
++ stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US || stack.top()->ident() == EVR_SS))
+ {
+- voiLUTDescriptor = *((DcmUnsignedShort *)(stack.top()));
++ // We explicitly use DcmElement::operator=(), which works for US and SS
++ DcmElement *vLUTDescriptor = &voiLUTDescriptor;
++ vLUTDescriptor->operator=(* OFstatic_cast(DcmElement *, stack.top()));
+ }
++
+ stack.clear();
+- if (EC_Normal == item->search((DcmTagKey &)voiLUTExplanation.getTag(),
+- stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == item->search((DcmTagKey &)voiLUTExplanation.getTag(),
++ stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_LO))
+ {
+ voiLUTExplanation = *((DcmLongString *)(stack.top()));
+ }
+ stack.clear();
+- if (EC_Normal == item->search((DcmTagKey &)voiLUTData.getTag(),
+- stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == item->search((DcmTagKey &)voiLUTData.getTag(),
++ stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_US || stack.top()->ident() == EVR_OW))
+ {
+- voiLUTData = *((DcmUnsignedShort *)(stack.top()));
++ // we deliberately call DcmElement::operator=() here, which will work for both DcmUnsignedShort and DcmOtherByteOtherWord parameters
++ DcmElement *vldata = &voiLUTData;
++ vldata->operator=(*(DcmElement *)(stack.top()));
+ }
+ } else result=EC_TagNotFound;
+ }
+--- a/dcmpstat/libsrc/dvpstat.cc
++++ b/dcmpstat/libsrc/dvpstat.cc
+@@ -578,14 +578,14 @@
+ currentImageSelectedFrame = 1; // default: first frame
+
+ // get Modality
+- if (EC_Normal == dataset->search(DCM_Modality, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dataset->search(DCM_Modality, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_CS))
+ {
+ currentImageModality = *((DcmCodeString *)(stack.top()));
+ }
+ stack.clear();
+
+ // determine default Presentation LUT Shape
+- if (EC_Normal == dataset->search(DCM_PhotometricInterpretation, stack, ESM_fromHere, OFFalse))
++ if (EC_Normal == dataset->search(DCM_PhotometricInterpretation, stack, ESM_fromHere, OFFalse) && (stack.top()->ident() == EVR_CS))
+ {
+ DcmCodeString *photometricInterpretation = (DcmCodeString *)(stack.top());
+ if (photometricInterpretation->getVM() == 1)
+@@ -598,12 +598,12 @@
+ stack.clear();
+
+ // get SOP class UID and SOP instance UID.
+- if ((EC_Normal == result)&&(EC_Normal == dataset->search(DCM_SOPClassUID, stack, ESM_fromHere, OFFalse)))
++ if ((EC_Normal == result)&&(EC_Normal == dataset->search(DCM_SOPClassUID, stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_UI))
+ {
+ result = ((DcmUniqueIdentifier *)(stack.top()))->getString(currentImageSOPClassUID);
+ }
+ stack.clear();
+- if ((EC_Normal == result)&&(EC_Normal == dataset->search(DCM_SOPInstanceUID, stack, ESM_fromHere, OFFalse)))
++ if ((EC_Normal == result)&&(EC_Normal == dataset->search(DCM_SOPInstanceUID, stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_UI))
+ {
+ result = ((DcmUniqueIdentifier *)(stack.top()))->getString(currentImageSOPInstanceUID);
+ }
+@@ -1124,40 +1124,36 @@
+ numEntries16 = (Uint16)numberOfEntries;
+
+ /* LUT Descriptor */
+- DcmElement *lutDescriptor = NULL;
+- if (firstMapped < 0)
++ DcmUnsignedShort *lutDescriptor = new DcmUnsignedShort(DcmTag(DCM_LUTDescriptor, EVR_US));
++ if (lutDescriptor == NULL) status = EC_MemoryExhausted;
++ else
+ {
+- // LUT Descriptor is SS
+- lutDescriptor = new DcmSignedShort(DcmTag(DCM_LUTDescriptor, EVR_SS));
+- if (lutDescriptor != NULL)
++ if (firstMapped < 0)
+ {
+- status = lutDescriptor->putSint16((Sint16)numEntries16, 0);
+- if (EC_Normal == status)
+- status = lutDescriptor->putSint16((Sint16)firstMapped, 1);
+- if (EC_Normal == status)
+- status = lutDescriptor->putSint16((Sint16)numberOfBits, 2);
+- } else
+- status = EC_MemoryExhausted;
+- } else {
+- // LUT Descriptor is US
+- lutDescriptor = new DcmUnsignedShort(DcmTag(DCM_LUTDescriptor, EVR_US));
+- if (lutDescriptor != NULL)
+- {
+- status = lutDescriptor->putUint16(numEntries16, 0);
+- if (EC_Normal == status)
+- status = lutDescriptor->putUint16((Uint16)firstMapped, 1);
+- if (EC_Normal == status)
+- status = lutDescriptor->putUint16((Uint16)numberOfBits, 2);
+- } else
+- status = EC_MemoryExhausted;
++ // LUT Descriptor is SS
++ DcmSignedShort ldesc(DcmTag(DCM_LUTDescriptor, EVR_SS));
++ status = ldesc.putSint16((Sint16)numEntries16, 0);
++ if (EC_Normal == status) status = ldesc.putSint16((Sint16)firstMapped, 1);
++ if (EC_Normal == status) status = ldesc.putSint16((Sint16)numberOfBits, 2);
++ if (EC_Normal == status)
++ {
++ // copy content of SS element into DcmUnsignedShort using DcmElement::operator=
++ DcmElement *ld = lutDescriptor;
++ ld->operator=(ldesc);
++ }
++ } else {
++ // LUT Descriptor is US
++ status = lutDescriptor->putUint16(numEntries16, 0);
++ if (EC_Normal == status) status = lutDescriptor->putUint16((Uint16)firstMapped, 1);
++ if (EC_Normal == status) status = lutDescriptor->putUint16((Uint16)numberOfBits, 2);
++ }
+ }
+
+ /* LUT Data */
+- DcmElement *lutData = NULL;
++ DcmUnsignedShort *lutData = NULL;
+ if (status == EC_Normal)
+ {
+- // LUT Data as OW, because of max size = 64K
+- lutData = new DcmOtherByteOtherWord(DcmTag(DCM_LUTData, EVR_OW));
++ lutData = new DcmUnsignedShort(DcmTag(DCM_LUTData, EVR_US));
+ if (lutData != NULL)
+ status = lutData->putUint16Array(data, numberOfEntries);
+ else
+@@ -1186,15 +1182,14 @@
+ if (status == EC_Normal)
+ {
+ if ((lutDescriptor != NULL) && (lutData != NULL) && (lutExplanation != NULL))
+- status = setVOILUT(*(DcmUnsignedShort *)lutDescriptor, *(DcmUnsignedShort *)lutData, *lutExplanation, applicability);
++ status = setVOILUT(*lutDescriptor, *lutData, *lutExplanation, applicability);
+ }
+
+ /* delete temporary dcmtk structures */
+ delete lutDescriptor;
+ delete lutData;
+ delete lutExplanation;
+- } else
+- status = EC_MemoryExhausted;
++ } else status = EC_MemoryExhausted;
+ delete[] data;
+ }
+ return status;
+--- a/dcmpstat/libsrc/dvpsvl.cc
++++ b/dcmpstat/libsrc/dvpsvl.cc
+@@ -59,9 +59,24 @@
+ OFCondition result = EC_Normal;
+ DcmStack stack;
+
+- READ_FROM_DATASET(DcmUnsignedShort, EVR_US, voiLUTDescriptor)
++ // LUTDescriptor can be US or SS
++ if ((EC_Normal == dset.search((DcmTagKey &)voiLUTDescriptor.getTag(),
++ stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US || stack.top()->ident() == EVR_SS))
++ {
++ // We explicitly use DcmElement::operator=(), which works for US and SS
++ DcmElement *vLUTDescriptor = &voiLUTDescriptor;
++ vLUTDescriptor->operator=(* OFstatic_cast(DcmElement *, stack.top()));
++ }
++
+ READ_FROM_DATASET(DcmLongString, EVR_LO, voiLUTExplanation)
+- READ_FROM_DATASET(DcmUnsignedShort, EVR_US, voiLUTData)
++
++ stack.clear();
++ if ((EC_Normal == dset.search((DcmTagKey &)voiLUTData.getTag(), stack, ESM_fromHere, OFFalse)) && (stack.top()->ident() == EVR_US || stack.top()->ident() == EVR_OW))
++ {
++ // we deliberately call DcmElement::operator=() here, which will work for both DcmUnsignedShort and DcmOtherByteOtherWord parameters
++ DcmElement *vldata = &voiLUTData;
++ vldata->operator=(*(DcmElement *)(stack.top()));
++ }
+
+ if (EC_Normal == result)
+ {
=====================================
debian/patches/0003-Fixed-wrong-error-handling-previous-commit.patch
=====================================
@@ -0,0 +1,80 @@
+From 2af7cec8378366e69f10c39550df69e8a37719d2 Mon Sep 17 00:00:00 2001
+From: Joerg Riesmeier <dicom at jriesmeier.com>
+Date: Mon, 22 Apr 2024 12:11:11 +0200
+Subject: Fixed wrong error handling (previous commit).
+Bug-Debian: https://bugs.debian.org/1070207
+Forwarded: not-needed
+
+Fixed wrong error handling introduced with the previous commit.
+---
+ dcmrt/libsrc/drttypes.cc | 6 +++---
+ dcmsr/libsrc/dsrtypes.cc | 32 ++++++++++++++++++++------------
+ 2 files changed, 23 insertions(+), 15 deletions(-)
+
+--- a/dcmrt/libsrc/drttypes.cc
++++ b/dcmrt/libsrc/drttypes.cc
+@@ -210,11 +210,11 @@
+ {
+ DcmStack stack;
+ OFCondition result = dataset.search(tagKey, stack, ESM_fromHere, OFFalse /*searchIntoSub*/);
+- if (result.good() && stack.top()->isElement())
++ if (result.good())
+ {
+- DcmElement *element = OFstatic_cast(DcmElement *, stack.top());
+- if (element != NULL)
++ if (stack.top()->isElement())
+ {
++ DcmElement *element = OFstatic_cast(DcmElement *, stack.top());
+ if (checkElementValue(*element, vm, type, result, moduleName))
+ result = element->getOFString(stringValue, 0);
+ else
+--- a/dcmsr/libsrc/dsrtypes.cc
++++ b/dcmsr/libsrc/dsrtypes.cc
+@@ -1176,13 +1176,17 @@
+ DcmStack stack;
+ const DcmTagKey tagKey = delem.getTag();
+ OFCondition result = dataset.search(tagKey, stack, ESM_fromHere, OFFalse /*searchIntoSub*/);
+- if (result.good() && stack.top()->isElement())
++ if (result.good())
+ {
+- /* copy object from search stack */
+- result = delem.copyFrom(*stack.top());
+- /* we need a reference to the original element in order to determine the SpecificCharacterSet */
+- if (!checkElementValue(OFstatic_cast(DcmElement *, stack.top()), tagKey, vm, type, result, moduleName, acceptViolation))
+- result = SR_EC_InvalidValue;
++ if (stack.top()->isElement())
++ {
++ /* copy object from search stack */
++ result = delem.copyFrom(*stack.top());
++ /* we need a reference to the original element in order to determine the SpecificCharacterSet */
++ if (!checkElementValue(OFstatic_cast(DcmElement *, stack.top()), tagKey, vm, type, result, moduleName, acceptViolation))
++ result = SR_EC_InvalidValue;
++ } else
++ result = EC_CorruptedData;
+ }
+ /* the element could not be found in the dataset */
+ else if (!checkElementValue(delem, vm, type, result, moduleName, acceptViolation))
+@@ -1201,13 +1205,17 @@
+ {
+ DcmStack stack;
+ OFCondition result = dataset.search(tagKey, stack, ESM_fromHere, OFFalse /*searchIntoSub*/);
+- if (result.good() && stack.top()->isElement())
++ if (result.good())
+ {
+- DcmElement *delem = OFstatic_cast(DcmElement *, stack.top());
+- /* we need a reference to the original element in order to determine the SpecificCharacterSet */
+- if (!checkElementValue(delem, tagKey, vm, type, result, moduleName, acceptViolation))
+- result = SR_EC_InvalidValue;
+- delem->getOFString(stringValue, 0);
++ if (stack.top()->isElement())
++ {
++ DcmElement *delem = OFstatic_cast(DcmElement *, stack.top());
++ /* we need a reference to the original element in order to determine the SpecificCharacterSet */
++ if (!checkElementValue(delem, tagKey, vm, type, result, moduleName, acceptViolation))
++ result = SR_EC_InvalidValue;
++ delem->getOFString(stringValue, 0);
++ } else
++ result = EC_CorruptedData;
+ } else {
+ if ((type == "1") || (type == "2"))
+ {
=====================================
debian/patches/0004-Fixed-two-segmentation-faults.patch
=====================================
@@ -0,0 +1,77 @@
+From 39576639b2bdfa77e5e444587e3c615f651e9183 Mon Sep 17 00:00:00 2001
+From: Marco Eichelberg <dicom at offis.de>
+Date: Wed, 13 Mar 2024 17:15:58 +0100
+Subject: Fixed two segmentation faults.
+Bug-Debian: https://bugs.debian.org/1070207
+Forwarded: not-needed
+
+Fixed two segmentations faults that could occur while processing an
+invalid incoming DIMSE message due to insufficient error handling
+causing a de-referenced NULL pointer.
+
+Thanks to Nils Bars <nils.bars at rub.de> for the bug report and sample files.
+
+This closes DCMTK issue #1114.
+---
+ dcmdata/libsrc/dcelem.cc | 7 +++++++
+ dcmnet/libsrc/dimcmd.cc | 31 +++++++++++++++++--------------
+ 2 files changed, 24 insertions(+), 14 deletions(-)
+
+--- a/dcmdata/libsrc/dcelem.cc
++++ b/dcmdata/libsrc/dcelem.cc
+@@ -717,6 +717,13 @@
+ if (isStreamNew)
+ delete readStream;
+ }
++ else
++ {
++ errorFlag = EC_InvalidStream; // incomplete dataset read from stream
++ DCMDATA_ERROR("DcmElement: " << getTagName() << " " << getTag()
++ << " larger (" << getLengthField() << ") than remaining bytes ("
++ << getTransferredBytes() << ") in file, premature end of stream");
++ }
+ }
+ /* return result value */
+ return errorFlag;
+--- a/dcmnet/libsrc/dimcmd.cc
++++ b/dcmnet/libsrc/dimcmd.cc
+@@ -207,22 +207,25 @@
+ return parseErrorWithMsg("dimcmd:getString: string too small", t);
+ } else {
+ ec = elem->getString(aString);
+- strncpy(s, aString, maxlen);
+- if (spacePadded)
++ if (ec.good())
+ {
+- /* before we remove leading and tailing spaces we want to know
+- * whether the string is actually space padded. Required to communicate
+- * with dumb peers which send space padded UIDs and fail if they
+- * receive correct UIDs back.
+- *
+- * This test can only detect space padded strings if
+- * dcmEnableAutomaticInputDataCorrection is false; otherwise the padding
+- * has already been removed by dcmdata at this stage.
+- */
+- size_t s_len = strlen(s);
+- if ((s_len > 0)&&(s[s_len-1] == ' ')) *spacePadded = OFTrue; else *spacePadded = OFFalse;
++ strncpy(s, aString, maxlen);
++ if (spacePadded)
++ {
++ /* before we remove leading and tailing spaces we want to know
++ * whether the string is actually space padded. Required to communicate
++ * with dumb peers which send space padded UIDs and fail if they
++ * receive correct UIDs back.
++ *
++ * This test can only detect space padded strings if
++ * dcmEnableAutomaticInputDataCorrection is false; otherwise the padding
++ * has already been removed by dcmdata at this stage.
++ */
++ size_t s_len = strlen(s);
++ if ((s_len > 0)&&(s[s_len-1] == ' ')) *spacePadded = OFTrue; else *spacePadded = OFFalse;
++ }
++ DU_stripLeadingAndTrailingSpaces(s);
+ }
+- DU_stripLeadingAndTrailingSpaces(s);
+ }
+ }
+ return (ec.good())? ec : DIMSE_PARSEFAILED;
=====================================
debian/patches/0005-Fixed-DcmDecimalString-unit-tests.patch
=====================================
@@ -0,0 +1,66 @@
+From c5a5612df9ff39e7c003fd114ecd1b4704567439 Mon Sep 17 00:00:00 2001
+From: Marco Eichelberg <dicom at offis.de>
+Date: Wed, 13 Mar 2024 23:03:40 +0100
+Subject: Fixed DcmDecimalString unit tests.
+Bug-Debian: https://bugs.debian.org/1070207
+Forwarded: not-needed
+
+---
+ dcmdata/tests/tvrds.cc | 12 ++++++------
+ 1 file changed, 6 insertions(+), 6 deletions(-)
+
+--- a/dcmdata/tests/tvrds.cc
++++ b/dcmdata/tests/tvrds.cc
+@@ -1,6 +1,6 @@
+ /*
+ *
+- * Copyright (C) 2011-2020, OFFIS e.V.
++ * Copyright (C) 2011-2024, OFFIS e.V.
+ * All rights reserved. See COPYRIGHT file for details.
+ *
+ * This software and supporting documentation were developed by
+@@ -30,7 +30,7 @@
+
+ OFTEST(dcmdata_decimalString_1)
+ {
+- DcmDecimalString decStr(DCM_ContourData, EVR_DS);
++ DcmDecimalString decStr(DCM_ContourData);
+ OFVector<Float64> doubleVals;
+ OFCHECK(decStr.putString("1\\2.0\\3.5\\-4.99\\+500.005\\6.66E-01").good());
+ OFCHECK(decStr.getFloat64Vector(doubleVals).good());
+@@ -45,7 +45,7 @@
+
+ OFTEST(dcmdata_decimalString_2)
+ {
+- DcmDecimalString decStr(DCM_ContourData, EVR_DS);
++ DcmDecimalString decStr(DCM_ContourData);
+ OFVector<Float64> doubleVals;
+ /* insert a NULL byte into the string */
+ OFCHECK(decStr.putString("1\\2.0\\3.5\\-4.99\0\\+500.005\\6.66E-01", 34).good());
+@@ -61,7 +61,7 @@
+
+ OFTEST(dcmdata_decimalString_3)
+ {
+- DcmDecimalString decStr(DCM_ContourData, EVR_DS);
++ DcmDecimalString decStr(DCM_ContourData);
+ OFVector<Float64> doubleVals;
+ /* insert a NULL byte into the string */
+ OFCHECK(decStr.putOFStringArray(OFString("1\\2.0\\3.5\\-4.99\0\\+500.005\\6.66E-01", 34)).good());
+@@ -77,7 +77,7 @@
+
+ OFTEST(dcmdata_decimalString_4)
+ {
+- DcmDecimalString decStr(DCM_ContourData, EVR_DS);
++ DcmDecimalString decStr(DCM_ContourData);
+ OFVector<Float64> doubleVals;
+ OFCHECK(decStr.putString("1\\2.0\\3.5\\-4.99\\+500.005\\6.66E-01\\").good());
+ OFCHECK_EQUAL(decStr.getVM(), 7);
+@@ -96,7 +96,7 @@
+ {
+ // Test insertion in the beginning
+ OFString testStr;
+- DcmDecimalString decStr(DCM_ContourData, EVR_DS);
++ DcmDecimalString decStr(DCM_ContourData);
+ OFCHECK(decStr.putFloat64(0, 0).good());
+ decStr.getOFStringArray(testStr);
+ OFCHECK(testStr == "0");
=====================================
debian/patches/series
=====================================
@@ -10,3 +10,8 @@
#1c8cca4bf6f7c92fc16f9e66faf49409c891a2b0.patch
f06a867513524664a1b03dfcf812d8b60fdd02cc.patch
c34f4e46e672ad21accf04da0dc085e43be6f5e1.patch
+0001-Fixed-unchecked-typecasts-of-DcmItem-search-results.patch
+0002-Fixed-unchecked-typecasts-and-fixed-LUT-handling.patch
+0003-Fixed-wrong-error-handling-previous-commit.patch
+0004-Fixed-two-segmentation-faults.patch
+0005-Fixed-DcmDecimalString-unit-tests.patch
View it on GitLab: https://salsa.debian.org/med-team/dcmtk/-/compare/da72b7276f37c927bc8064f41790948ccc93d372...e5c8d3e2432cb3a1b14fb459d99cc0894211bda2
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View it on GitLab: https://salsa.debian.org/med-team/dcmtk/-/compare/da72b7276f37c927bc8064f41790948ccc93d372...e5c8d3e2432cb3a1b14fb459d99cc0894211bda2
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