[tomcat7] 01/01: Add security patches for +deb8u2

Markus Koschany apo-guest at moszumanska.debian.org
Mon Mar 28 15:14:15 UTC 2016


This is an automated email from the git hooks/post-receive script.

apo-guest pushed a commit to branch jessie
in repository tomcat7.

commit 3db3a3938950a9f8827ac0f90c109e04c2720328
Author: Markus Koschany <apo at debian.org>
Date:   Mon Mar 28 17:13:57 2016 +0200

    Add security patches for +deb8u2
---
 debian/changelog                   |  47 ++++
 debian/patches/CVE-2015-5174.patch | 256 ++++++++++++++++++
 debian/patches/CVE-2015-5345.patch | 313 +++++++++++++++++++++
 debian/patches/CVE-2015-5346.patch |  98 +++++++
 debian/patches/CVE-2015-5351.patch | 116 ++++++++
 debian/patches/CVE-2016-0706.patch |  40 +++
 debian/patches/CVE-2016-0714.patch | 542 +++++++++++++++++++++++++++++++++++++
 debian/patches/CVE-2016-0763.patch |  49 ++++
 debian/patches/series              |   7 +
 9 files changed, 1468 insertions(+)

diff --git a/debian/changelog b/debian/changelog
index de80e87..1f4ac1d 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,50 @@
+tomcat7 (7.0.56-3+deb8u2) jessie-security; urgency=high
+
+  * Team upload.
+  * Fix CVE-2015-5174:
+    Directory traversal vulnerability in RequestUtil.java allows remote
+    authenticated users to bypass intended SecurityManager restrictions and
+    list a parent directory via a /.. (slash dot dot) in a pathname used by a
+    web application in a getResource, getResourceAsStream, or getResourcePaths
+    call, as demonstrated by the $CATALINA_BASE/webapps directory.
+  * Fix CVE-2015-5345:
+    The Mapper component in Apache Tomcat processes redirects before
+    considering security constraints and Filters, which allows remote attackers
+    to determine the existence of a directory via a URL that lacks a trailing /
+    (slash) character.
+  * Fix CVE-2015-5346:
+    Session fixation vulnerability in Apache Tomcat when different session
+    settings are used for deployments of multiple versions of the same web
+    application, might allow remote attackers to hijack web sessions by
+    leveraging use of a requestedSessionSSL field for an unintended request,
+    related to CoyoteAdapter.java and Request.java.
+  * Fix CVE-2015-5351:
+    The Manager and Host Manager applications in Apache Tomcat establish
+    sessions and send CSRF tokens for arbitrary new requests, which allows
+    remote attackers to bypass a CSRF protection mechanism by using a token.
+  * Fix CVE-2016-0706:
+    Apache Tomcat does not place
+    org.apache.catalina.manager.StatusManagerServlet on the
+    org/apache/catalina/core/RestrictedServlets.properties list, which allows
+    remote authenticated users to bypass intended SecurityManager restrictions
+    and read arbitrary HTTP requests, and consequently discover session ID
+    values, via a crafted web application.
+  * Fix CVE-2016-0714:
+    The session-persistence implementation in Apache Tomcat mishandles session
+    attributes, which allows remote authenticated users to bypass intended
+    SecurityManager restrictions and execute arbitrary code in a privileged
+    context via a web application that places a crafted object in a session.
+  * Fix CVE-2016-0763:
+    The setGlobalContext method in
+    org/apache/naming/factory/ResourceLinkFactory.java in Apache Tomcat does
+    not consider whether ResourceLinkFactory.setGlobalContext callers are
+    authorized, which allows remote authenticated users to bypass intended
+    SecurityManager restrictions and read or write to arbitrary application
+    data, or cause a denial of service (application disruption), via a web
+    application that sets a crafted global context.
+
+ -- Markus Koschany <apo at debian.org>  Sun, 27 Mar 2016 21:09:35 +0200
+
 tomcat7 (7.0.56-3+deb8u1) jessie-security; urgency=medium
 
   * Fixed CVE-2014-7810: Malicious web applications could use expression
diff --git a/debian/patches/CVE-2015-5174.patch b/debian/patches/CVE-2015-5174.patch
new file mode 100644
index 0000000..1ac046d
--- /dev/null
+++ b/debian/patches/CVE-2015-5174.patch
@@ -0,0 +1,256 @@
+From: Markus Koschany <apo at debian.org>
+Date: Sun, 27 Mar 2016 20:37:02 +0200
+Subject: CVE-2015-5174
+
+Directory traversal vulnerability in RequestUtil.java in Apache Tomcat 6.x
+before 6.0.45, 7.x before 7.0.65, and 8.x before 8.0.27 allows remote
+authenticated users to bypass intended SecurityManager restrictions and list a
+parent directory via a /.. (slash dot dot) in a pathname used by a web
+application in a getResource, getResourceAsStream, or getResourcePaths call, as
+demonstrated by the $CATALINA_BASE/webapps directory.
+
+Origin: https://svn.apache.org/viewvc?view=revision&revision=1696284
+Origin: https://svn.apache.org/viewvc?view=revision&revision=1700898
+---
+ java/org/apache/tomcat/util/http/RequestUtil.java  |  45 ++++++----
+ .../apache/tomcat/util/http/TestRequestUtil.java   | 100 +++++++++++++++++++--
+ webapps/docs/changelog.xml                         |  11 +++
+ 3 files changed, 135 insertions(+), 21 deletions(-)
+
+diff --git a/java/org/apache/tomcat/util/http/RequestUtil.java b/java/org/apache/tomcat/util/http/RequestUtil.java
+index ebe4f34..1ee4bca 100644
+--- a/java/org/apache/tomcat/util/http/RequestUtil.java
++++ b/java/org/apache/tomcat/util/http/RequestUtil.java
+@@ -30,6 +30,9 @@ public class RequestUtil {
+      * try to perform security checks for malicious input.
+      *
+      * @param path Relative path to be normalized
++     *
++     * @return The normalized path or <code>null</code> of the path cannot be
++     *         normalized
+      */
+     public static String normalize(String path) {
+         return normalize(path, true);
+@@ -44,11 +47,15 @@ public class RequestUtil {
+      *
+      * @param path Relative path to be normalized
+      * @param replaceBackSlash Should '\\' be replaced with '/'
++     *
++     * @return The normalized path or <code>null</code> of the path cannot be
++     *         normalized
+      */
+     public static String normalize(String path, boolean replaceBackSlash) {
+ 
+-        if (path == null)
++        if (path == null) {
+             return null;
++        }
+ 
+         // Create a place for the normalized path
+         String normalized = path;
+@@ -56,9 +63,6 @@ public class RequestUtil {
+         if (replaceBackSlash && normalized.indexOf('\\') >= 0)
+             normalized = normalized.replace('\\', '/');
+ 
+-        if (normalized.equals("/."))
+-            return "/";
+-
+         // Add a leading "/" if necessary
+         if (!normalized.startsWith("/"))
+             normalized = "/" + normalized;
+@@ -66,34 +70,43 @@ public class RequestUtil {
+         // Resolve occurrences of "//" in the normalized path
+         while (true) {
+             int index = normalized.indexOf("//");
+-            if (index < 0)
++            if (index < 0) {
+                 break;
+-            normalized = normalized.substring(0, index) +
+-                normalized.substring(index + 1);
++            }
++            normalized = normalized.substring(0, index) + normalized.substring(index + 1);
+         }
+ 
+         // Resolve occurrences of "/./" in the normalized path
+         while (true) {
+             int index = normalized.indexOf("/./");
+-            if (index < 0)
++            if (index < 0) {
+                 break;
+-            normalized = normalized.substring(0, index) +
+-                normalized.substring(index + 2);
++            }
++            normalized = normalized.substring(0, index) + normalized.substring(index + 2);
+         }
+ 
+         // Resolve occurrences of "/../" in the normalized path
+         while (true) {
+             int index = normalized.indexOf("/../");
+-            if (index < 0)
++            if (index < 0) {
+                 break;
+-            if (index == 0)
+-                return (null);  // Trying to go outside our context
++            }
++            if (index == 0) {
++                return null;  // Trying to go outside our context
++            }
+             int index2 = normalized.lastIndexOf('/', index - 1);
+-            normalized = normalized.substring(0, index2) +
+-                normalized.substring(index + 3);
++            normalized = normalized.substring(0, index2) + normalized.substring(index + 3);
++        }
++
++        if (normalized.equals("/.")) {
++            return "/";
++        }
++
++        if (normalized.equals("/..")) {
++            return null;  // Trying to go outside our context
+         }
+ 
+         // Return the normalized path that we have completed
+-        return (normalized);
++        return normalized;
+     }
+ }
+diff --git a/test/org/apache/tomcat/util/http/TestRequestUtil.java b/test/org/apache/tomcat/util/http/TestRequestUtil.java
+index fe3115f..f50098c 100644
+--- a/test/org/apache/tomcat/util/http/TestRequestUtil.java
++++ b/test/org/apache/tomcat/util/http/TestRequestUtil.java
+@@ -23,11 +23,101 @@ import org.junit.Test;
+ public class TestRequestUtil {
+ 
+     @Test
+-    public void testNormalizeString() {
+-        assertEquals("/something",RequestUtil.normalize("//something"));
+-        assertEquals("/some/thing",RequestUtil.normalize("some//thing"));
+-        assertEquals("/something/",RequestUtil.normalize("something//"));
+-        assertEquals("/",RequestUtil.normalize("//"));
++    public void testNormalize01() {
++        doTestNormalize("//something", "/something");
+     }
+ 
++    @Test
++    public void testNormalize02() {
++        doTestNormalize("some//thing", "/some/thing");
++    }
++
++    @Test
++    public void testNormalize03() {
++        doTestNormalize("something//", "/something/");
++    }
++
++    @Test
++    public void testNormalize04() {
++        doTestNormalize("//", "/");
++    }
++
++        @Test
++    public void testNormalize05() {
++        doTestNormalize("//", "/");
++    }
++
++    @Test
++    public void testNormalize06() {
++        doTestNormalize("///", "/");
++    }
++
++    @Test
++    public void testNormalize07() {
++        doTestNormalize("////", "/");
++    }
++
++    @Test
++    public void testNormalize08() {
++        doTestNormalize("/.", "/");
++    }
++
++    @Test
++    public void testNormalize09() {
++        doTestNormalize("/./", "/");
++    }
++
++    @Test
++    public void testNormalize10() {
++        doTestNormalize(".", "/");
++    }
++
++    @Test
++    public void testNormalize11() {
++        doTestNormalize("/..", null);
++    }
++
++    @Test
++    public void testNormalize12() {
++        doTestNormalize("/../", null);
++    }
++
++    @Test
++    public void testNormalize13() {
++        doTestNormalize("..", null);
++    }
++
++    @Test
++    public void testNormalize14() {
++        doTestNormalize("//..", null);
++    }
++
++    @Test
++    public void testNormalize15() {
++        doTestNormalize("//../", null);
++    }
++
++    @Test
++    public void testNormalize16() {
++        doTestNormalize("/./..", null);
++    }
++
++    @Test
++    public void testNormalize17() {
++        doTestNormalize("/./../", null);
++    }
++
++    @Test
++    public void testNormalize18() {
++        doTestNormalize("/a/../..", null);
++    }
++
++    @Test
++    public void testNormalize19() {
++        doTestNormalize("/a/../../", null);
++    }
++
++    private void doTestNormalize(String input, String expected) {
++        assertEquals(expected,RequestUtil.normalize(input));
++    }
+ }
+diff --git a/webapps/docs/changelog.xml b/webapps/docs/changelog.xml
+index dcea7bc..3c02dab 100644
+--- a/webapps/docs/changelog.xml
++++ b/webapps/docs/changelog.xml
+@@ -4865,6 +4865,10 @@
+         described in the bug is invalid since it breaks the EL specification.
+         (markt)
+       </fix>
++      <fix>
++        Correct a coupe of edge cases in <code>RequestUtil.normalize()</code>.
++        (markt)
++      </fix>
+     </changelog>
+   </subsection>
+   <subsection name="Cluster">
+@@ -4874,6 +4878,13 @@
+       </fix>
+     </changelog>
+   </subsection>
++  <subsection name="Coyote">
++    <changelog>
++      <fix>
++        Correct some edge cases in <code>RequestUtil.normalize()</code>. (markt)
++      </fix>
++    </changelog>
++  </subsection>
+   <subsection name="Web applications">
+     <changelog>
+       <fix>
diff --git a/debian/patches/CVE-2015-5345.patch b/debian/patches/CVE-2015-5345.patch
new file mode 100644
index 0000000..c298b6d
--- /dev/null
+++ b/debian/patches/CVE-2015-5345.patch
@@ -0,0 +1,313 @@
+From: Markus Koschany <apo at debian.org>
+Date: Sun, 27 Mar 2016 20:37:30 +0200
+Subject: CVE-2015-5345
+
+---
+ .../catalina/authenticator/FormAuthenticator.java  | 14 ++++++++
+ java/org/apache/catalina/core/StandardContext.java | 37 ++++++++++++++++++++--
+ .../apache/catalina/core/mbeans-descriptors.xml    |  8 +++++
+ .../apache/catalina/servlets/DefaultServlet.java   | 28 +++++++++++++++-
+ .../apache/catalina/servlets/WebdavServlet.java    |  5 +++
+ .../org/apache/tomcat/util/http/mapper/Mapper.java | 21 ++++++------
+ .../apache/catalina/startup/TomcatBaseTest.java    |  3 +-
+ webapps/docs/changelog.xml                         | 10 ++++++
+ webapps/docs/config/context.xml                    | 16 ++++++++++
+ 9 files changed, 126 insertions(+), 16 deletions(-)
+
+diff --git a/java/org/apache/catalina/authenticator/FormAuthenticator.java b/java/org/apache/catalina/authenticator/FormAuthenticator.java
+index a6846d0..d7e9eb5 100644
+--- a/java/org/apache/catalina/authenticator/FormAuthenticator.java
++++ b/java/org/apache/catalina/authenticator/FormAuthenticator.java
+@@ -263,6 +263,20 @@ public class FormAuthenticator
+ 
+         // No -- Save this request and redirect to the form login page
+         if (!loginAction) {
++            // If this request was to the root of the context without a trailing
++            // '/', need to redirect to add it else the submit of the login form
++            // may not go to the correct web application
++            if (request.getServletPath().length() == 0 && request.getPathInfo() == null) {
++                StringBuilder location = new StringBuilder(requestURI);
++                location.append('/');
++                if (request.getQueryString() != null) {
++                    location.append('?');
++                    location.append(request.getQueryString());
++                }
++                response.sendRedirect(response.encodeRedirectURL(location.toString()));
++                return false;
++            }
++
+             session = request.getSessionInternal(true);
+             if (log.isDebugEnabled()) {
+                 log.debug("Save request in session '" + session.getIdInternal() + "'");
+diff --git a/java/org/apache/catalina/core/StandardContext.java b/java/org/apache/catalina/core/StandardContext.java
+index dac9ef9..40043f7 100644
+--- a/java/org/apache/catalina/core/StandardContext.java
++++ b/java/org/apache/catalina/core/StandardContext.java
+@@ -896,8 +896,41 @@ public class StandardContext extends ContainerBase
+     private Boolean failCtxIfServletStartFails;
+ 
+ 
++    boolean mapperContextRootRedirectEnabled = false;
++
++    boolean mapperDirectoryRedirectEnabled = false;
++
+     // ----------------------------------------------------- Context Properties
+-    
++
++    public void setMapperContextRootRedirectEnabled(boolean mapperContextRootRedirectEnabled) {
++        this.mapperContextRootRedirectEnabled = mapperContextRootRedirectEnabled;
++    }
++
++
++    /**
++     * {@inheritDoc}
++     * <p>
++     * The default value for this implementation is {@code false}.
++     */
++    public boolean getMapperContextRootRedirectEnabled() {
++        return mapperContextRootRedirectEnabled;
++    }
++
++
++    public void setMapperDirectoryRedirectEnabled(boolean mapperDirectoryRedirectEnabled) {
++        this.mapperDirectoryRedirectEnabled = mapperDirectoryRedirectEnabled;
++    }
++
++
++    /**
++     * {@inheritDoc}
++     * <p>
++     * The default value for this implementation is {@code false}.
++     */
++    public boolean getMapperDirectoryRedirectEnabled() {
++        return mapperDirectoryRedirectEnabled;
++    }
++
+     @Override
+     public void setContainerSciFilter(String containerSciFilter) {
+         this.containerSciFilter = containerSciFilter;
+@@ -1091,7 +1124,7 @@ public class StandardContext extends ContainerBase
+        this.instanceManager = instanceManager;
+     }
+ 
+-    
++
+     @Override
+     public String getEncodedPath() {
+         return encodedPath;
+diff --git a/java/org/apache/catalina/core/mbeans-descriptors.xml b/java/org/apache/catalina/core/mbeans-descriptors.xml
+index b4a5845..7f3b776 100644
+--- a/java/org/apache/catalina/core/mbeans-descriptors.xml
++++ b/java/org/apache/catalina/core/mbeans-descriptors.xml
+@@ -221,6 +221,14 @@
+                description="The object used for mapping"
+                type="java.lang.Object"/>
+       
++    <attribute name="mapperContextRootRedirectEnabled"
++               description="Should the Mapper be used for context root redirects"
++               type="boolean" />
++
++    <attribute name="mapperDirectoryRedirectEnabled"
++               description="Should the Mapper be used for directory redirects"
++               type="boolean" />
++
+     <attribute name="namingContextListener"
+                description="Associated naming context listener."
+                type="org.apache.catalina.core.NamingContextListener" />
+diff --git a/java/org/apache/catalina/servlets/DefaultServlet.java b/java/org/apache/catalina/servlets/DefaultServlet.java
+index 8be47b3..0ed549c 100644
+--- a/java/org/apache/catalina/servlets/DefaultServlet.java
++++ b/java/org/apache/catalina/servlets/DefaultServlet.java
+@@ -373,6 +373,10 @@ public class DefaultServlet
+      * @param request The servlet request we are processing
+      */
+     protected String getRelativePath(HttpServletRequest request) {
++        return getRelativePath(request, false);
++    }
++
++    protected String getRelativePath(HttpServletRequest request, boolean allowEmptyPath) {
+         // IMPORTANT: DefaultServlet can be mapped to '/' or '/path/*' but always
+         // serves resources from the web app root with context rooted paths.
+         // i.e. it can not be used to mount the web app root under a sub-path
+@@ -782,7 +786,8 @@ public class DefaultServlet
+         boolean serveContent = content;
+ 
+         // Identify the requested resource path
+-        String path = getRelativePath(request);
++        String path = getRelativePath(request, true);
++
+         if (debug > 0) {
+             if (serveContent)
+                 log("DefaultServlet.serveResource:  Serving resource '" +
+@@ -792,6 +797,12 @@ public class DefaultServlet
+                     path + "' headers only");
+         }
+ 
++        if (path.length() == 0) {
++            // Context root redirect
++            doDirectoryRedirect(request, response);
++            return;
++        }
++
+         CacheEntry cacheEntry = resources.lookupCache(path);
+ 
+         if (!cacheEntry.exists) {
+@@ -860,6 +871,11 @@ public class DefaultServlet
+ 
+         if (cacheEntry.context != null) {
+ 
++            if (!path.endsWith("/")) {
++                doDirectoryRedirect(request, response);
++                return;
++            }
++
+             // Skip directory listings if we have been configured to
+             // suppress them
+             if (!listings) {
+@@ -1067,6 +1083,16 @@ public class DefaultServlet
+ 
+     }
+ 
++    private void doDirectoryRedirect(HttpServletRequest request, HttpServletResponse response)
++            throws IOException {
++        StringBuilder location = new StringBuilder(request.getRequestURI());
++        location.append('/');
++        if (request.getQueryString() != null) {
++            location.append('?');
++            location.append(request.getQueryString());
++        }
++        response.sendRedirect(response.encodeRedirectURL(location.toString()));
++    }
+ 
+     /**
+      * Parse the content-range header.
+diff --git a/java/org/apache/catalina/servlets/WebdavServlet.java b/java/org/apache/catalina/servlets/WebdavServlet.java
+index 6ced423..7fe6064 100644
+--- a/java/org/apache/catalina/servlets/WebdavServlet.java
++++ b/java/org/apache/catalina/servlets/WebdavServlet.java
+@@ -430,6 +430,11 @@ public class WebdavServlet
+      */
+     @Override
+     protected String getRelativePath(HttpServletRequest request) {
++        return getRelativePath(request, false);
++    }
++
++    @Override
++    protected String getRelativePath(HttpServletRequest request, boolean allowEmptyPath) {
+         // Are we being processed by a RequestDispatcher.include()?
+         if (request.getAttribute(
+                 RequestDispatcher.INCLUDE_REQUEST_URI) != null) {
+diff --git a/java/org/apache/tomcat/util/http/mapper/Mapper.java b/java/org/apache/tomcat/util/http/mapper/Mapper.java
+index ef6e0b1..78adabe 100644
+--- a/java/org/apache/tomcat/util/http/mapper/Mapper.java
++++ b/java/org/apache/tomcat/util/http/mapper/Mapper.java
+@@ -856,20 +856,13 @@ public final class Mapper {
+ 
+         int pathOffset = path.getOffset();
+         int pathEnd = path.getEnd();
+-        int servletPath = pathOffset;
+         boolean noServletPath = false;
+ 
+         int length = contextVersion.path.length();
+-        if (length != (pathEnd - pathOffset)) {
+-            servletPath = pathOffset + length;
+-        } else {
++        if (length == (pathEnd - pathOffset)) {
+             noServletPath = true;
+-            path.append('/');
+-            pathOffset = path.getOffset();
+-            pathEnd = path.getEnd();
+-            servletPath = pathOffset+length;
+         }
+-
++        int servletPath = pathOffset + length;
+         path.setOffset(servletPath);
+ 
+         // Rule 1 -- Exact Match
+@@ -906,8 +899,10 @@ public final class Mapper {
+ 
+         if(mappingData.wrapper == null && noServletPath) {
+             // The path is empty, redirect to "/"
++            path.append('/');
++            pathEnd = path.getEnd();
+             mappingData.redirectPath.setChars
+-                (path.getBuffer(), pathOffset, pathEnd-pathOffset);
++                (path.getBuffer(), pathOffset, pathEnd - pathOffset);
+             path.setEnd(pathEnd - 1);
+             return;
+         }
+@@ -1028,7 +1023,11 @@ public final class Mapper {
+                 Object file = null;
+                 String pathStr = path.toString();
+                 try {
+-                    file = contextVersion.resources.lookup(pathStr);
++                    if (pathStr.length() == 0) {
++                        file = contextVersion.resources.lookup("/");
++                    } else {
++                        file = contextVersion.resources.lookup(pathStr);
++                    }
+                 } catch(NamingException nex) {
+                     // Swallow, since someone else handles the 404
+                 }
+diff --git a/test/org/apache/catalina/startup/TomcatBaseTest.java b/test/org/apache/catalina/startup/TomcatBaseTest.java
+index 7ad04ee..38ffd5b 100644
+--- a/test/org/apache/catalina/startup/TomcatBaseTest.java
++++ b/test/org/apache/catalina/startup/TomcatBaseTest.java
+@@ -231,8 +231,7 @@ public abstract class TomcatBaseTest extends LoggingBaseTest {
+             String method) throws IOException {
+ 
+         URL url = new URL(path);
+-        HttpURLConnection connection =
+-            (HttpURLConnection) url.openConnection();
++        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
+         connection.setUseCaches(false);
+         connection.setReadTimeout(readTimeout);
+         connection.setRequestMethod(method);
+diff --git a/webapps/docs/changelog.xml b/webapps/docs/changelog.xml
+index 3c02dab..3f77b6a 100644
+--- a/webapps/docs/changelog.xml
++++ b/webapps/docs/changelog.xml
+@@ -244,6 +244,16 @@
+         Fix a potential resource leak in JDTCompiler when checking wether
+         a resource is a package. Reported by Coverity Scan. (fschumacher)
+       </fix>
++      <add>
++        Move the functionality that provides redirects for context roots and
++        directories where a trailing <code>/</code> is added from the Mapper to
++        the <code>DefaultServlet</code>. This enables such requests to be
++        processed by any configured Valves and Filters before the redirect is
++        made. This behaviour is configurable via the
++        <code>mapperContextRootRedirectEnabled</code> and
++        <code>mapperDirectoryRedirectEnabled</code> attributes of the Context
++        which may be used to restore the previous behaviour. (markt)
++      </add>
+     </changelog>
+   </subsection>
+   <subsection name="WebSocket">
+diff --git a/webapps/docs/config/context.xml b/webapps/docs/config/context.xml
+index 10b34f1..3679837 100644
+--- a/webapps/docs/config/context.xml
++++ b/webapps/docs/config/context.xml
+@@ -360,6 +360,22 @@
+         default value of <code>false</code> is used.</p>
+       </attribute>
+ 
++      <attribute name="mapperContextRootRedirectEnabled" required="false">
++        <p>If enabled, requests for a web application context root will be
++        redirected (adding a trailing slash) if necessary by the Mapper rather
++        than the default Servlet. This is more efficient but has the side effect
++        of confirming that the context path exists. If not specified, the
++        default value of <code>false</code> is used.</p>
++      </attribute>
++
++      <attribute name="mapperDirectoryRedirectEnabled" required="false">
++        <p>If enabled, requests for a web application directory will be
++        redirected (adding a trailing slash) if necessary by the Mapper rather
++        than the default Servlet. This is more efficient but has the side effect
++        of confirming that the directory is exists. If not specified, the
++        default value of <code>false</code> is used.</p>
++      </attribute>
++
+       <attribute name="override" required="false">
+         <p>Set to <code>true</code> to ignore any settings in both the global
+         or <a href="host.html">Host</a> default contexts.  By default, settings
diff --git a/debian/patches/CVE-2015-5346.patch b/debian/patches/CVE-2015-5346.patch
new file mode 100644
index 0000000..9cd13f5
--- /dev/null
+++ b/debian/patches/CVE-2015-5346.patch
@@ -0,0 +1,98 @@
+From: Markus Koschany <apo at debian.org>
+Date: Sun, 27 Mar 2016 20:40:42 +0200
+Subject: CVE-2015-5346
+
+Session fixation vulnerability in Apache Tomcat when different session settings
+are used for deployments of multiple versions of the same web application,
+might allow remote attackers to hijack web sessions by leveraging use of a
+requestedSessionSSL field for an unintended request, related to
+CoyoteAdapter.java and Request.java.
+
+Origin: https://svn.apache.org/viewvc?view=revision&revision=1713187
+---
+ .../apache/catalina/connector/CoyoteAdapter.java   |  1 +
+ java/org/apache/catalina/connector/Request.java    | 36 ++++++++++++----------
+ webapps/docs/changelog.xml                         |  4 +++
+ 3 files changed, 24 insertions(+), 17 deletions(-)
+
+diff --git a/java/org/apache/catalina/connector/CoyoteAdapter.java b/java/org/apache/catalina/connector/CoyoteAdapter.java
+index d47e01d..2dd52f9 100644
+--- a/java/org/apache/catalina/connector/CoyoteAdapter.java
++++ b/java/org/apache/catalina/connector/CoyoteAdapter.java
+@@ -791,6 +791,7 @@ public class CoyoteAdapter implements Adapter {
+                                 // Reset mapping
+                                 request.getMappingData().recycle();
+                                 mapRequired = true;
++                                request.recycleSessionInfo();
+                             }
+                             break;
+                         }
+diff --git a/java/org/apache/catalina/connector/Request.java b/java/org/apache/catalina/connector/Request.java
+index 619885a..a99c75b 100644
+--- a/java/org/apache/catalina/connector/Request.java
++++ b/java/org/apache/catalina/connector/Request.java
+@@ -494,18 +494,7 @@ public class Request
+         notes.clear();
+         cookies = null;
+ 
+-        if (session != null) {
+-            try {
+-                session.endAccess();
+-            } catch (Throwable t) {
+-                ExceptionUtils.handleThrowable(t);
+-                log.warn(sm.getString("coyoteRequest.sessionEndAccessFail"), t);
+-            }
+-        }
+-        session = null;
+-        requestedSessionCookie = false;
+-        requestedSessionId = null;
+-        requestedSessionURL = false;
++        recycleSessionInfo();
+ 
+         if (Globals.IS_SECURITY_ENABLED || Connector.RECYCLE_FACADES) {
+             parameterMap = new ParameterMap<String, String[]>();
+@@ -553,11 +542,24 @@ public class Request
+     }
+ 
+ 
+-    /**
+-     * Clear cached encoders (to save memory for Comet requests).
+-     */
+-    public boolean read()
+-        throws IOException {
++    protected void recycleSessionInfo() {
++        if (session != null) {
++            try {
++                session.endAccess();
++            } catch (Throwable t) {
++                ExceptionUtils.handleThrowable(t);
++                log.warn(sm.getString("coyoteRequest.sessionEndAccessFail"), t);
++            }
++        }
++        session = null;
++        requestedSessionCookie = false;
++        requestedSessionId = null;
++        requestedSessionURL = false;
++        requestedSessionSSL = false;
++    }
++
++
++    public boolean read() throws IOException {
+         return (inputBuffer.realReadBytes(null, 0, 0) > 0);
+     }
+ 
+diff --git a/webapps/docs/changelog.xml b/webapps/docs/changelog.xml
+index 3f77b6a..8a2b878 100644
+--- a/webapps/docs/changelog.xml
++++ b/webapps/docs/changelog.xml
+@@ -350,6 +350,10 @@
+         creates a separate linked project that compiles websocket classes
+         of Tomcat 7 with Java 7 compiler. (kkolinko)
+       </fix>
++      <fix>
++        Handle the unlikely case where different versions of a web application
++        are deployed with different session settings. (markt)
++      </fix>
+     </changelog>
+   </subsection>
+ </section>
diff --git a/debian/patches/CVE-2015-5351.patch b/debian/patches/CVE-2015-5351.patch
new file mode 100644
index 0000000..86a4a8c
--- /dev/null
+++ b/debian/patches/CVE-2015-5351.patch
@@ -0,0 +1,116 @@
+From: Markus Koschany <apo at debian.org>
+Date: Sun, 27 Mar 2016 20:41:13 +0200
+Subject: CVE-2015-5351
+
+The Manager and Host Manager applications in Apache Tomcat establish
+sessions and send CSRF tokens for arbitrary new requests, which allows remote
+attackers to bypass a CSRF protection mechanism by using a token.
+
+Origin: https://svn.apache.org/viewvc?view=revision&revision=1720663
+Origin: https://svn.apache.org/viewvc?view=revision&revision=1720661
+---
+ webapps/docs/changelog.xml               | 7 +++++++
+ webapps/host-manager/WEB-INF/jsp/401.jsp | 1 +
+ webapps/host-manager/WEB-INF/jsp/403.jsp | 1 +
+ webapps/host-manager/WEB-INF/jsp/404.jsp | 3 ++-
+ webapps/host-manager/index.jsp           | 4 ++--
+ webapps/manager/WEB-INF/web.xml          | 1 -
+ webapps/manager/index.jsp                | 4 ++--
+ 7 files changed, 15 insertions(+), 6 deletions(-)
+
+diff --git a/webapps/docs/changelog.xml b/webapps/docs/changelog.xml
+index 8a2b878..a97163d 100644
+--- a/webapps/docs/changelog.xml
++++ b/webapps/docs/changelog.xml
+@@ -354,6 +354,13 @@
+         Handle the unlikely case where different versions of a web application
+         are deployed with different session settings. (markt)
+       </fix>
++      <fix>
++        Don't create sessions unnecessarily in the Manager application. (markt)
++      </fix>
++      <fix>
++        Don't create sessions unnecessarily in the Host Manager application.
++        (markt)
++      </fix>
+     </changelog>
+   </subsection>
+ </section>
+diff --git a/webapps/host-manager/WEB-INF/jsp/401.jsp b/webapps/host-manager/WEB-INF/jsp/401.jsp
+index 83c8c6f..047766b 100644
+--- a/webapps/host-manager/WEB-INF/jsp/401.jsp
++++ b/webapps/host-manager/WEB-INF/jsp/401.jsp
+@@ -14,6 +14,7 @@
+   See the License for the specific language governing permissions and
+   limitations under the License.
+ --%>
++<%@ page session="false" trimDirectiveWhitespaces="true" %>
+ <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+ <html>
+  <head>
+diff --git a/webapps/host-manager/WEB-INF/jsp/403.jsp b/webapps/host-manager/WEB-INF/jsp/403.jsp
+index 2dbb448..5eff6f0 100644
+--- a/webapps/host-manager/WEB-INF/jsp/403.jsp
++++ b/webapps/host-manager/WEB-INF/jsp/403.jsp
+@@ -14,6 +14,7 @@
+   See the License for the specific language governing permissions and
+   limitations under the License.
+ --%>
++<%@ page session="false" trimDirectiveWhitespaces="true" %>
+ <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+ <html>
+  <head>
+diff --git a/webapps/host-manager/WEB-INF/jsp/404.jsp b/webapps/host-manager/WEB-INF/jsp/404.jsp
+index d1b5b0b..9816df5 100644
+--- a/webapps/host-manager/WEB-INF/jsp/404.jsp
++++ b/webapps/host-manager/WEB-INF/jsp/404.jsp
+@@ -14,7 +14,8 @@
+   See the License for the specific language governing permissions and
+   limitations under the License.
+ --%>
+-<%@ page import="org.apache.catalina.util.RequestUtil" %>
++<%@ page import="org.apache.catalina.util.RequestUtil" session="false"
++         trimDirectiveWhitespaces="true" %>
+ <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+ <html>
+  <head>
+diff --git a/webapps/host-manager/index.jsp b/webapps/host-manager/index.jsp
+index d4816e5..2806b76 100644
+--- a/webapps/host-manager/index.jsp
++++ b/webapps/host-manager/index.jsp
+@@ -14,5 +14,5 @@
+   See the License for the specific language governing permissions and
+   limitations under the License.
+ --%>
+-<% response.sendRedirect(response.encodeRedirectURL(request.getContextPath() +
+-        "/html")); %>
+\ No newline at end of file
++<%@ page session="false" trimDirectiveWhitespaces="true" %>
++<% response.sendRedirect(request.getContextPath() + "/html"); %>
+\ No newline at end of file
+diff --git a/webapps/manager/WEB-INF/web.xml b/webapps/manager/WEB-INF/web.xml
+index 8fb7728..a47162e 100644
+--- a/webapps/manager/WEB-INF/web.xml
++++ b/webapps/manager/WEB-INF/web.xml
+@@ -116,7 +116,6 @@
+   <filter-mapping>
+     <filter-name>CSRF</filter-name>
+     <servlet-name>HTMLManager</servlet-name>
+-    <servlet-name>jsp</servlet-name>
+   </filter-mapping>
+ 
+   <!-- Define a Security Constraint on this Application -->
+diff --git a/webapps/manager/index.jsp b/webapps/manager/index.jsp
+index d4816e5..ff4f47b 100644
+--- a/webapps/manager/index.jsp
++++ b/webapps/manager/index.jsp
+@@ -14,5 +14,5 @@
+   See the License for the specific language governing permissions and
+   limitations under the License.
+ --%>
+-<% response.sendRedirect(response.encodeRedirectURL(request.getContextPath() +
+-        "/html")); %>
+\ No newline at end of file
++<%@ page session="false" %>
++<% response.sendRedirect(request.getContextPath() + "/html"); %>
+\ No newline at end of file
diff --git a/debian/patches/CVE-2016-0706.patch b/debian/patches/CVE-2016-0706.patch
new file mode 100644
index 0000000..f0764a7
--- /dev/null
+++ b/debian/patches/CVE-2016-0706.patch
@@ -0,0 +1,40 @@
+From: Markus Koschany <apo at debian.org>
+Date: Sun, 27 Mar 2016 20:41:41 +0200
+Subject: CVE-2016-0706
+
+Apache Tomcat does not place org.apache.catalina.manager.StatusManagerServlet
+on the org/apache/catalina/core/RestrictedServlets.properties list, which
+allows remote authenticated users to bypass intended SecurityManager
+restrictions and read arbitrary HTTP requests, and consequently discover
+session ID values, via a crafted web application.
+
+Origin: https://svn.apache.org/viewvc?view=revision&revision=1722801
+---
+ java/org/apache/catalina/core/RestrictedServlets.properties | 1 +
+ webapps/docs/changelog.xml                                  | 4 ++++
+ 2 files changed, 5 insertions(+)
+
+diff --git a/java/org/apache/catalina/core/RestrictedServlets.properties b/java/org/apache/catalina/core/RestrictedServlets.properties
+index d336968..cefa249 100644
+--- a/java/org/apache/catalina/core/RestrictedServlets.properties
++++ b/java/org/apache/catalina/core/RestrictedServlets.properties
+@@ -16,3 +16,4 @@
+ org.apache.catalina.ssi.SSIServlet=restricted
+ org.apache.catalina.servlets.CGIServlet=restricted
+ org.apache.catalina.manager.JMXProxyServlet=restricted
++org.apache.catalina.manager.StatusManagerServlet=restricted
+diff --git a/webapps/docs/changelog.xml b/webapps/docs/changelog.xml
+index a97163d..63b5662 100644
+--- a/webapps/docs/changelog.xml
++++ b/webapps/docs/changelog.xml
+@@ -361,6 +361,10 @@
+         Don't create sessions unnecessarily in the Host Manager application.
+         (markt)
+       </fix>
++      <fix>
++        Add the <code>StatusManagerServlet</code> to the list of Servlets that
++        can only be loaded by privileged applications. (markt)
++      </fix>
+     </changelog>
+   </subsection>
+ </section>
diff --git a/debian/patches/CVE-2016-0714.patch b/debian/patches/CVE-2016-0714.patch
new file mode 100644
index 0000000..38b15cd
--- /dev/null
+++ b/debian/patches/CVE-2016-0714.patch
@@ -0,0 +1,542 @@
+From: Markus Koschany <apo at debian.org>
+Date: Sun, 27 Mar 2016 20:42:05 +0200
+Subject: CVE-2016-0714
+
+The session-persistence implementation in Apache Tomcat mishandles session
+attributes, which allows remote authenticated users to bypass intended
+SecurityManager restrictions and execute arbitrary code in a privileged context
+via a web application that places a crafted object in a session.
+
+Origin: https://svn.apache.org/viewvc?view=revision&revision=1726923
+Origin: https://svn.apache.org/viewvc?view=revision&revision=1727034
+---
+ .../catalina/ha/session/ClusterManagerBase.java    |   2 +
+ .../catalina/ha/session/mbeans-descriptors.xml     |  16 +++
+ .../catalina/session/LocalStrings.properties       |   2 +
+ java/org/apache/catalina/session/ManagerBase.java  | 156 ++++++++++++++++++++-
+ .../apache/catalina/session/StandardManager.java   |   7 +-
+ .../apache/catalina/session/mbeans-descriptors.xml |  12 ++
+ .../catalina/util/CustomObjectInputStream.java     |  69 ++++++++-
+ .../apache/catalina/util/LocalStrings.properties   |   2 +
+ webapps/docs/changelog.xml                         |   8 ++
+ webapps/docs/config/cluster-manager.xml            |  53 +++++++
+ 10 files changed, 320 insertions(+), 7 deletions(-)
+
+diff --git a/java/org/apache/catalina/ha/session/ClusterManagerBase.java b/java/org/apache/catalina/ha/session/ClusterManagerBase.java
+index 39437b3..65fc965 100644
+--- a/java/org/apache/catalina/ha/session/ClusterManagerBase.java
++++ b/java/org/apache/catalina/ha/session/ClusterManagerBase.java
+@@ -199,6 +199,8 @@ public abstract class ClusterManagerBase extends ManagerBase
+         copy.setProcessExpiresFrequency(getProcessExpiresFrequency());
+         copy.setNotifyListenersOnReplication(isNotifyListenersOnReplication());
+         copy.setSessionAttributeFilter(getSessionAttributeFilter());
++        copy.setSessionAttributeValueClassNameFilter(getSessionAttributeValueClassNameFilter());
++        copy.setWarnOnSessionAttributeFilterFailure(getWarnOnSessionAttributeFilterFailure());
+         copy.setSecureRandomClass(getSecureRandomClass());
+         copy.setSecureRandomProvider(getSecureRandomProvider());
+         copy.setSecureRandomAlgorithm(getSecureRandomAlgorithm());
+diff --git a/java/org/apache/catalina/ha/session/mbeans-descriptors.xml b/java/org/apache/catalina/ha/session/mbeans-descriptors.xml
+index bfdbe0d..adea9a7 100644
+--- a/java/org/apache/catalina/ha/session/mbeans-descriptors.xml
++++ b/java/org/apache/catalina/ha/session/mbeans-descriptors.xml
+@@ -562,6 +562,22 @@
+       name="secureRandomProvider"
+       description="The secure random number generator provider name"
+       type="java.lang.String"/>
++    <attribute
++      name="sessionAttributeValueClassNameFilter"
++      description="The regular expression used to filter session attributes based on the implementation class of the value. The regular expression is anchored and must match the fully qualified class name."
++      type="java.lang.String"/>
++    <attribute
++      name="warnOnSessionAttributeFilterFailure"
++      description="Should a WARN level log message be generated if a session attribute fails to match sessionAttributeNameFilter or sessionAttributeClassNameFilter?"
++      type="boolean"/>
++    <attribute
++      name="sessionAttributeValueClassNameFilter"
++      description="The regular expression used to filter session attributes based on the implementation class of the value. The regular expression is anchored and must match the fully qualified class name."
++      type="java.lang.String"/>
++    <attribute
++      name="warnOnSessionAttributeFilterFailure"
++      description="Should a WARN level log message be generated if a session attribute fails to match sessionAttributeNameFilter or sessionAttributeClassNameFilter?"
++      type="boolean"/>
+     <operation
+       name="expireSession"
+       description="Expired the given session"
+diff --git a/java/org/apache/catalina/session/LocalStrings.properties b/java/org/apache/catalina/session/LocalStrings.properties
+index 7db05d4..89a68dc 100644
+--- a/java/org/apache/catalina/session/LocalStrings.properties
++++ b/java/org/apache/catalina/session/LocalStrings.properties
+@@ -34,6 +34,8 @@ JDBCStore.missingDataSourceName=No valid JNDI name was given.
+ JDBCStore.commitSQLException=SQLException committing connection before closing
+ managerBase.createRandom=Created random number generator for session ID generation in {0}ms.
+ managerBase.createSession.ise=createSession: Too many active sessions
++managerBase.sessionAttributeNameFilter=Skipped session attribute named [{0}] because it did not match the name filter [{1}]
++managerBase.sessionAttributeValueClassNameFilter=Skipped session attribute named [{0}] because the value type [{1}] did not match the filter [{2}]
+ managerBase.sessionTimeout=Invalid session timeout setting {0}
+ serverSession.value.iae=null value
+ standardManager.expireException=processsExpire:  Exception during session expiration
+diff --git a/java/org/apache/catalina/session/ManagerBase.java b/java/org/apache/catalina/session/ManagerBase.java
+index d7a30ac..e20c689 100644
+--- a/java/org/apache/catalina/session/ManagerBase.java
++++ b/java/org/apache/catalina/session/ManagerBase.java
+@@ -38,6 +38,7 @@ import java.util.concurrent.atomic.AtomicLong;
+ import org.apache.catalina.Container;
+ import org.apache.catalina.Context;
+ import org.apache.catalina.Engine;
++import org.apache.catalina.Globals;
+ import org.apache.catalina.LifecycleException;
+ import org.apache.catalina.Manager;
+ import org.apache.catalina.Session;
+@@ -47,6 +48,9 @@ import org.apache.catalina.util.SessionIdGenerator;
+ import org.apache.juli.logging.Log;
+ import org.apache.juli.logging.LogFactory;
+ import org.apache.tomcat.util.res.StringManager;
++import java.util.regex.Pattern;
++import java.util.regex.PatternSyntaxException;
++
+ 
+ 
+ /**
+@@ -211,10 +215,109 @@ public abstract class ManagerBase extends LifecycleMBeanBase
+      */
+     protected final PropertyChangeSupport support =
+             new PropertyChangeSupport(this);
+-    
++
++    // ------------------------------------------------------------- Constructors
++    public ManagerBase() {
++        if (Globals.IS_SECURITY_ENABLED) {
++            // Minimum set required for default distribution/persistence to work
++            // plus String
++            setSessionAttributeValueClassNameFilter(
++                    "java\\.lang\\.(?:Boolean|Integer|Long|Number|String)");
++            setWarnOnSessionAttributeFilterFailure(true);
++        }
++    }
++
++
+ 
+     // ------------------------------------------------------------- Properties
+ 
++    private Pattern sessionAttributeNamePattern;
++
++    protected Pattern getSessionAttributeNamePattern() {
++        return sessionAttributeNamePattern;
++    }
++
++    /**
++     * Obtain the regular expression used to filter session attribute based on
++     * the implementation class of the value. The regular expression is anchored
++     * and must match the fully qualified class name.
++     *
++     * @return The regular expression currently used to filter class names.
++     *         {@code null} means no filter is applied. If an empty string is
++     *         specified then no names will match the filter and all attributes
++     *         will be blocked.
++     */
++    public String getSessionAttributeValueClassNameFilter() {
++        if (sessionAttributeValueClassNamePattern == null) {
++            return null;
++        }
++        return sessionAttributeValueClassNamePattern.toString();
++    }
++
++
++    /**
++     * Provides {@link #getSessionAttributeValueClassNameFilter()} as a
++     * pre-compiled regular expression pattern.
++     *
++     * @return The pre-compiled pattern used to filter session attributes based
++     *         on the implementation class name of the value. {@code null} means
++     *         no filter is applied.
++     */
++    protected Pattern getSessionAttributeValueClassNamePattern() {
++        return sessionAttributeValueClassNamePattern;
++    }
++
++
++    /**
++     * Set the regular expression to use to filter classes used for session
++     * attributes. The regular expression is anchored and must match the fully
++     * qualified class name.
++     *
++     * @param sessionAttributeValueClassNameFilter The regular expression to use
++     *            to filter session attributes based on class name. Use {@code
++     *            null} if no filtering is required. If an empty string is
++     *           specified then no names will match the filter and all
++     *           attributes will be blocked.
++     *
++     * @throws PatternSyntaxException If the expression is not valid
++     */
++    public void setSessionAttributeValueClassNameFilter(String sessionAttributeValueClassNameFilter)
++            throws PatternSyntaxException {
++        if (sessionAttributeValueClassNameFilter == null ||
++                sessionAttributeValueClassNameFilter.length() == 0) {
++            sessionAttributeValueClassNamePattern = null;
++        } else {
++            sessionAttributeValueClassNamePattern =
++                    Pattern.compile(sessionAttributeValueClassNameFilter);
++        }
++    }
++
++
++    /**
++     * Should a warn level log message be generated if a session attribute is
++     * not persisted / replicated / restored.
++     *
++     * @return {@code true} if a warn level log message should be generated
++     */
++    public boolean getWarnOnSessionAttributeFilterFailure() {
++        return warnOnSessionAttributeFilterFailure;
++    }
++
++
++    /**
++     * Configure whether or not a warn level log message should be generated if
++     * a session attribute is not persisted / replicated / restored.
++     *
++     * @param warnOnSessionAttributeFilterFailure {@code true} if the
++     *            warn level message should be generated
++     *
++     */
++    public void setWarnOnSessionAttributeFilterFailure(
++            boolean warnOnSessionAttributeFilterFailure) {
++        this.warnOnSessionAttributeFilterFailure = warnOnSessionAttributeFilterFailure;
++    }
++
++
+     /**
+      * Return the Container with which this Manager is associated.
+      */
+@@ -225,6 +328,10 @@ public abstract class ManagerBase extends LifecycleMBeanBase
+ 
+     }
+ 
++    private Pattern sessionAttributeValueClassNamePattern;
++
++    private boolean warnOnSessionAttributeFilterFailure;
++
+ 
+     /**
+      * Set the Container with which this Manager is associated.
+@@ -774,8 +881,51 @@ public abstract class ManagerBase extends LifecycleMBeanBase
+         container.fireContainerEvent(Context.CHANGE_SESSION_ID_EVENT,
+                 new String[] {oldId, newId});
+     }
+-    
+-    
++/**
++     * {@inheritDoc}
++     * <p>
++     * This implementation excludes session attributes from distribution if the:
++     * <ul>
++     * <li>attribute name matches {@link #getSessionAttributeNameFilter()}</li>
++     * </ul>
++     */
++    public boolean willAttributeDistribute(String name, Object value) {
++        Pattern sessionAttributeNamePattern = getSessionAttributeNamePattern();
++        if (sessionAttributeNamePattern != null) {
++            if (!sessionAttributeNamePattern.matcher(name).matches()) {
++                if (getWarnOnSessionAttributeFilterFailure() || log.isDebugEnabled()) {
++                    String msg = sm.getString("managerBase.sessionAttributeNameFilter",
++                            name, sessionAttributeNamePattern);
++                    if (getWarnOnSessionAttributeFilterFailure()) {
++                        log.warn(msg);
++                    } else {
++                        log.debug(msg);
++                    }
++                }
++                return false;
++            }
++        }
++
++        Pattern sessionAttributeValueClassNamePattern = getSessionAttributeValueClassNamePattern();
++        if (value != null && sessionAttributeValueClassNamePattern != null) {
++            if (!sessionAttributeValueClassNamePattern.matcher(
++                    value.getClass().getName()).matches()) {
++                if (getWarnOnSessionAttributeFilterFailure() || log.isDebugEnabled()) {
++                    String msg = sm.getString("managerBase.sessionAttributeValueClassNameFilter",
++                            name, value.getClass().getName(), sessionAttributeNamePattern);
++                    if (getWarnOnSessionAttributeFilterFailure()) {
++                        log.warn(msg);
++                    } else {
++                        log.debug(msg);
++                    }
++                }
++                return false;
++            }
++        }
++
++        return true;
++    }
++
+     // ------------------------------------------------------ Protected Methods
+ 
+ 
+diff --git a/java/org/apache/catalina/session/StandardManager.java b/java/org/apache/catalina/session/StandardManager.java
+index 0174094..e69b9ba 100644
+--- a/java/org/apache/catalina/session/StandardManager.java
++++ b/java/org/apache/catalina/session/StandardManager.java
+@@ -231,17 +231,20 @@ public class StandardManager extends ManagerBase {
+         ObjectInputStream ois = null;
+         Loader loader = null;
+         ClassLoader classLoader = null;
++        Log logger = null;
+         try {
+             fis = new FileInputStream(file.getAbsolutePath());
+             bis = new BufferedInputStream(fis);
+             if (container != null)
+-                loader = container.getLoader();
++                logger = container.getLogger();
+             if (loader != null)
+                 classLoader = loader.getClassLoader();
+             if (classLoader != null) {
+                 if (log.isDebugEnabled())
+                     log.debug("Creating custom object input stream for class loader ");
+-                ois = new CustomObjectInputStream(bis, classLoader);
++                ois = new CustomObjectInputStream(bis, classLoader, logger,
++                         getSessionAttributeValueClassNamePattern(),
++                         getWarnOnSessionAttributeFilterFailure());
+             } else {
+                 if (log.isDebugEnabled())
+                     log.debug("Creating standard object input stream");
+diff --git a/java/org/apache/catalina/session/mbeans-descriptors.xml b/java/org/apache/catalina/session/mbeans-descriptors.xml
+index 16a90a0..0c65645 100644
+--- a/java/org/apache/catalina/session/mbeans-descriptors.xml
++++ b/java/org/apache/catalina/session/mbeans-descriptors.xml
+@@ -321,6 +321,18 @@
+                  type="int"
+             writeable="false"/>
+ 
++    <attribute   name="sessionAttributeNameFilter"
++          descritpion="The string pattern used for including session attributes in distribution. Null means all attributes are included."
++                 type="java.lang.String"/>
++
++    <attribute   name="sessionAttributeValueClassNameFilter"
++          description="The regular expression used to filter session attributes based on the implementation class of the value. The regular expression is anchored and must match the fully qualified class name."
++                 type="java.lang.String"/>
++
++    <attribute   name="warnOnSessionAttributeFilterFailure"
++          description="Should a WARN level log message be generated if a session attribute fails to match sessionAttributeNameFilter or sessionAttributeClassNameFilter?"
++                 type="boolean"/>
++
+     <operation   name="backgroundProcess"
+           description="Invalidate all sessions that have expired."
+                impact="ACTION"
+diff --git a/java/org/apache/catalina/util/CustomObjectInputStream.java b/java/org/apache/catalina/util/CustomObjectInputStream.java
+index 8074064..b837564 100644
+--- a/java/org/apache/catalina/util/CustomObjectInputStream.java
++++ b/java/org/apache/catalina/util/CustomObjectInputStream.java
+@@ -19,9 +19,18 @@ package org.apache.catalina.util;
+ 
+ import java.io.IOException;
+ import java.io.InputStream;
++import java.io.InvalidClassException;
+ import java.io.ObjectInputStream;
+ import java.io.ObjectStreamClass;
+ import java.lang.reflect.Proxy;
++import java.util.Collections;
++import java.util.Set;
++import java.util.WeakHashMap;
++import java.util.concurrent.ConcurrentHashMap;
++import java.util.regex.Pattern;
++
++import org.apache.juli.logging.Log;
++import org.apache.tomcat.util.res.StringManager;
+ 
+ /**
+  * Custom subclass of <code>ObjectInputStream</code> that loads from the
+@@ -35,14 +44,26 @@ public final class CustomObjectInputStream
+     extends ObjectInputStream {
+ 
+ 
++    private static final StringManager sm = StringManager.getManager("org.apache.catalina.util");
++
++    private static final WeakHashMap<ClassLoader, Set<String>> reportedClassCache =
++            new WeakHashMap<ClassLoader, Set<String>>();
++
+     /**
+      * The class loader we will use to resolve classes.
+      */
+     private ClassLoader classLoader = null;
++    private final Set<String> reportedClasses;
++    private final Log log;
++
++    private final Pattern allowedClassNamePattern;
++    private final String allowedClassNameFilter;
++    private final boolean warnOnFailure;
+ 
+ 
+     /**
+-     * Construct a new instance of CustomObjectInputStream
++     * Construct a new instance of CustomObjectInputStream without any filtering
++     * of deserialized classes.
+      *
+      * @param stream The input stream we will read from
+      * @param classLoader The class loader used to instantiate objects
+@@ -53,8 +74,36 @@ public final class CustomObjectInputStream
+                                    ClassLoader classLoader)
+         throws IOException {
+ 
++        this(stream, classLoader, null, null, false);
++    }
++
++    public CustomObjectInputStream(InputStream stream, ClassLoader classLoader,
++            Log log, Pattern allowedClassNamePattern, boolean warnOnFailure)
++            throws IOException {
+         super(stream);
++        if (log == null && allowedClassNamePattern != null && warnOnFailure) {
++            throw new IllegalArgumentException(
++                    sm.getString("customObjectInputStream.logRequired"));
++        }
+         this.classLoader = classLoader;
++        this.log = log;
++        this.allowedClassNamePattern = allowedClassNamePattern;
++        if (allowedClassNamePattern == null) {
++            this.allowedClassNameFilter = null;
++        } else {
++            this.allowedClassNameFilter = allowedClassNamePattern.toString();
++        }
++        this.warnOnFailure = warnOnFailure;
++
++        Set<String> reportedClasses;
++        synchronized (reportedClassCache) {
++            reportedClasses = reportedClassCache.get(classLoader);
++            if (reportedClasses == null) {
++                reportedClasses = Collections.newSetFromMap(new ConcurrentHashMap<String,Boolean>());
++                reportedClassCache.put(classLoader, reportedClasses);
++            }
++        }
++        this.reportedClasses = reportedClasses;
+     }
+ 
+ 
+@@ -70,8 +119,24 @@ public final class CustomObjectInputStream
+     @Override
+     public Class<?> resolveClass(ObjectStreamClass classDesc)
+         throws ClassNotFoundException, IOException {
++
++        String name = classDesc.getName();
++        if (allowedClassNamePattern != null) {
++            boolean allowed = allowedClassNamePattern.matcher(name).matches();
++            if (!allowed) {
++                boolean doLog = warnOnFailure && reportedClasses.add(name);
++                String msg = sm.getString("customObjectInputStream.nomatch", name, allowedClassNameFilter);
++                if (doLog) {
++                    log.warn(msg);
++                } else if (log.isDebugEnabled()) {
++                    log.debug(msg);
++                }
++                throw new InvalidClassException(msg);
++            }
++        }
++
+         try {
+-            return Class.forName(classDesc.getName(), false, classLoader);
++            return Class.forName(name, false, classLoader);
+         } catch (ClassNotFoundException e) {
+             try {
+                 // Try also the superclass because of primitive types
+diff --git a/java/org/apache/catalina/util/LocalStrings.properties b/java/org/apache/catalina/util/LocalStrings.properties
+index 012a9dd..ac37457 100644
+--- a/java/org/apache/catalina/util/LocalStrings.properties
++++ b/java/org/apache/catalina/util/LocalStrings.properties
+@@ -17,6 +17,8 @@ parameterMap.locked=No modifications are allowed to a locked ParameterMap
+ resourceSet.locked=No modifications are allowed to a locked ResourceSet
+ hexUtil.bad=Bad hexadecimal digit
+ hexUtil.odd=Odd number of hexadecimal digits
++customObjectInputStream.logRequired=A valid logger is required for class name filtering with logging
++customObjectInputStream.nomatch=The class [{0}] did not match the regular expression [{1}] for classes allowed to be deserialized
+ #Default Messages Utilized by the ExtensionValidator
+ extensionValidator.web-application-manifest=Web Application Manifest
+ extensionValidator.extension-not-found-error=ExtensionValidator[{0}][{1}]: Required extension [{2}] not found.
+diff --git a/webapps/docs/changelog.xml b/webapps/docs/changelog.xml
+index 63b5662..def6a13 100644
+--- a/webapps/docs/changelog.xml
++++ b/webapps/docs/changelog.xml
+@@ -254,6 +254,14 @@
+         <code>mapperDirectoryRedirectEnabled</code> attributes of the Context
+         which may be used to restore the previous behaviour. (markt)
+       </add>
++      <add>
++        Extend the session attribute filtering options to include filtering
++        based on the implementation class of the value and optional
++        <code>WARN</code> level logging if an attribute is filtered. These
++        options are avaialble for all of the Manager implementations that ship
++        with Tomcat. When a <code>SecurityManager</code> is used filtering will
++        be enabled by default. (markt)
++      </add>
+     </changelog>
+   </subsection>
+   <subsection name="WebSocket">
+diff --git a/webapps/docs/config/cluster-manager.xml b/webapps/docs/config/cluster-manager.xml
+index 3f1cafc..6051985 100644
+--- a/webapps/docs/config/cluster-manager.xml
++++ b/webapps/docs/config/cluster-manager.xml
+@@ -165,6 +165,28 @@
+         Set to <code>true</code> if you wish to have container listeners notified
+         across Tomcat nodes in the cluster.
+       </attribute>
++      <attribute name="sessionAttributeNameFilter" required="false">
++        <p>A regular expression used to filter which session attributes will be
++        replicated. An attribute will only be replicated if its name matches
++        this pattern. If the pattern is zero length or <code>null</code>, all
++        attributes are eligible for replication. The pattern is anchored so the
++        session attribute name must fully match the pattern. As an example, the
++        value <code>(userName|sessionHistory)</code> will only replicate the
++        two session attributes named <code>userName</code> and
++        <code>sessionHistory</code>. If not specified, the default value of
++        <code>null</code> will be used unless a <code>SecurityManager</code> is
++        enabled in which case the default will be
++        <code>java\\.lang\\.(?:Boolean|Integer|Long|Number|String)</code>.</p>
++      </attribute>
++      <attribute name="sessionAttributeValueClassNameFilter" required="false">
++        <p>A regular expression used to filter which session attributes will be
++        replicated. An attribute will only be replicated if the implementation
++        class name of the value matches this pattern. If the pattern is zero
++        length or <code>null</code>, all attributes are eligible for
++        replication. The pattern is anchored so the fully qualified class name
++        must fully match the pattern. If not specified, the default value of
++        <code>null</code> will be used.</p>
++      </attribute>
+       <attribute name="stateTransferTimeout" required="false">
+         The time in seconds to wait for a session state transfer to complete
+         from another node when a node is starting up.
+@@ -197,6 +219,37 @@
+         If set to <code>false</code>, all queued session messages are handled.
+         Default is <code>true</code>.
+       </attribute>
++      <attribute name="sessionAttributeNameFilter" required="false">
++        <p>A regular expression used to filter which session attributes will be
++        replicated. An attribute will only be replicated if its name matches
++        this pattern. If the pattern is zero length or <code>null</code>, all
++        attributes are eligible for replication. The pattern is anchored so the
++        session attribute name must fully match the pattern. As an example, the
++        value <code>(userName|sessionHistory)</code> will only replicate the
++        two session attributes named <code>userName</code> and
++        <code>sessionHistory</code>. If not specified, the default value of
++        <code>null</code> will be used.</p>
++      </attribute>
++      <attribute name="sessionAttributeValueClassNameFilter" required="false">
++        <p>A regular expression used to filter which session attributes will be
++        replicated. An attribute will only be replicated if the implementation
++        class name of the value matches this pattern. If the pattern is zero
++        length or <code>null</code>, all attributes are eligible for
++        replication. The pattern is anchored so the fully qualified class name
++        must fully match the pattern. If not specified, the default value of
++        <code>null</code> will be used unless a <code>SecurityManager</code> is
++        enabled in which case the default will be
++        <code>java\\.lang\\.(?:Boolean|Integer|Long|Number|String)</code>.</p>
++      </attribute>
++      <attribute name="warnOnSessionAttributeFilterFailure" required="false">
++        <p>If <strong>sessionAttributeNameFilter</strong> or
++        <strong>sessionAttributeValueClassNameFilter</strong> blocks an
++        attribute, should this be logged at <code>WARN</code> level? If
++        <code>WARN</code> level logging is disabled then it will be logged at
++        <code>DEBUG</code>. The default value of this attribute is
++        <code>false</code> unless a <code>SecurityManager</code> is enabled in
++        which case the default will be <code>true</code>.</p>
++      </attribute>
+     </attributes>
+   </subsection>
+   <subsection name="org.apache.catalina.ha.session.BackupManager Attributes">
diff --git a/debian/patches/CVE-2016-0763.patch b/debian/patches/CVE-2016-0763.patch
new file mode 100644
index 0000000..c9dc141
--- /dev/null
+++ b/debian/patches/CVE-2016-0763.patch
@@ -0,0 +1,49 @@
+From: Markus Koschany <apo at debian.org>
+Date: Sun, 27 Mar 2016 20:42:33 +0200
+Subject: CVE-2016-0763
+
+The setGlobalContext method in
+org/apache/naming/factory/ResourceLinkFactory.java in Apache Tomcat does not
+consider whether ResourceLinkFactory.setGlobalContext callers are authorized,
+which allows remote authenticated users to bypass intended SecurityManager
+restrictions and read or write to arbitrary application data, or cause a denial
+of service (application disruption), via a web application that sets a crafted
+global context.
+
+Origin: https://svn.apache.org/viewvc?view=revision&revision=1725931
+---
+ java/org/apache/naming/factory/ResourceLinkFactory.java | 5 +++++
+ webapps/docs/changelog.xml                              | 4 ++++
+ 2 files changed, 9 insertions(+)
+
+diff --git a/java/org/apache/naming/factory/ResourceLinkFactory.java b/java/org/apache/naming/factory/ResourceLinkFactory.java
+index e98a153..8606a8f 100644
+--- a/java/org/apache/naming/factory/ResourceLinkFactory.java
++++ b/java/org/apache/naming/factory/ResourceLinkFactory.java
+@@ -60,6 +60,11 @@ public class ResourceLinkFactory
+      * @param newGlobalContext new global context value
+      */
+     public static void setGlobalContext(Context newGlobalContext) {
++        SecurityManager sm = System.getSecurityManager();
++        if (sm != null) {
++            sm.checkPermission(new RuntimePermission(
++                   ResourceLinkFactory.class.getName() + ".setGlobalContext"));
++        }
+         globalContext = newGlobalContext;
+     }
+ 
+diff --git a/webapps/docs/changelog.xml b/webapps/docs/changelog.xml
+index def6a13..e84c181 100644
+--- a/webapps/docs/changelog.xml
++++ b/webapps/docs/changelog.xml
+@@ -373,6 +373,10 @@
+         Add the <code>StatusManagerServlet</code> to the list of Servlets that
+         can only be loaded by privileged applications. (markt)
+       </fix>
++      <fix>
++        Protect initialization of <code>ResourceLinkFactory</code> when
++        running with a SecurityManager. (kkolinko)
++      </fix>
+     </changelog>
+   </subsection>
+ </section>
diff --git a/debian/patches/series b/debian/patches/series
index ba761f4..e1e7cdb 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -19,3 +19,10 @@
 0023-update-test-certificates.patch
 0024-disable-unit-tests-depending-on-network-access.path
 CVE-2014-7810.patch
+CVE-2015-5174.patch
+CVE-2015-5346.patch
+CVE-2015-5345.patch
+CVE-2015-5351.patch
+CVE-2016-0706.patch
+CVE-2016-0714.patch
+CVE-2016-0763.patch

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