[Pkg-clamav-devel] Bug#902899: clamd: yara_exec.c:177: yr_execute_code: Assertion `sp == 0' failed in stable update

Bernhard Schmidt berni at birkenwald.de
Tue Jul 3 08:04:21 BST 2018


Package: clamav-daemon
Version: 0.100.0+dfsg-0+deb9u1
Severity: important

Hi,

after upgrading my Stretch mailserver with the packages from stretch-proposed-updates 
clamav-daemon dies with the following error message

root at mail:~# systemctl status clamav-daemon
● clamav-daemon.service - Clam AntiVirus userspace daemon
   Loaded: loaded (/lib/systemd/system/clamav-daemon.service; enabled; vendor preset: enabled)
  Drop-In: /etc/systemd/system/clamav-daemon.service.d
           └─extend.conf
   Active: failed (Result: signal) since Tue 2018-07-03 07:40:12 CEST; 1h 18min ago
     Docs: man:clamd(8)
           man:clamd.conf(5)
           https://www.clamav.net/documents/
  Process: 21927 ExecStart=/usr/sbin/clamd --foreground=true (code=killed, signal=ABRT)
  Process: 21923 ExecStartPre=/bin/chown clamav /run/clamav (code=exited, status=0/SUCCESS)
  Process: 21922 ExecStartPre=/bin/mkdir /run/clamav (code=exited, status=1/FAILURE)
 Main PID: 21927 (code=killed, signal=ABRT)

Jul 03 07:30:24 mail clamd[21927]: LibClamAV Error: yyerror(): /var/lib/clamav/antidebug_antivm.yar line 544 undefined identifier "pe"
Jul 03 07:30:24 mail clamd[21927]: LibClamAV Error: yyerror(): /var/lib/clamav/antidebug_antivm.yar line 557 undefined identifier "pe"
Jul 03 07:30:24 mail clamd[21927]: LibClamAV Error: yyerror(): /var/lib/clamav/antidebug_antivm.yar line 603 undefined identifier "pe"
Jul 03 07:30:24 mail clamd[21927]: LibClamAV Error: yyerror(): /var/lib/clamav/antidebug_antivm.yar line 614 undefined identifier "pe"
Jul 03 07:30:24 mail clamd[21927]: LibClamAV Warning: cli_loadyara: failed to parse or load 7 yara rules from file /var/lib/clamav/antidebug_antivm.yar, successfully 
Jul 03 07:30:36 mail clamd[21927]: Tue Jul  3 07:30:36 2018 -> Database correctly reloaded (6790696 signatures)
Jul 03 07:40:12 mail clamd[21927]: clamd: yara_exec.c:177: yr_execute_code: Assertion `sp == 0' failed.
Jul 03 07:40:12 mail systemd[1]: clamav-daemon.service: Main process exited, code=killed, status=6/ABRT
Jul 03 07:40:12 mail systemd[1]: clamav-daemon.service: Unit entered failed state.
Jul 03 07:40:12 mail systemd[1]: clamav-daemon.service: Failed with result 'signal'.

0.99.4+dfsg-1+deb9u1 -> 0.100.0+dfsg-0+deb9u1

This is probably related to using third-party signatures, but still a regression.

Best Regards,
Bernhard

-- Package-specific info:
--- configuration ---
Checking configuration files in /etc/clamav

Config file: clamd.conf
-----------------------
BlockMax disabled
PreludeEnable disabled
PreludeAnalyzerName = "ClamAV"
LogFile = "/var/log/clamav/clamav.log"
LogFileUnlock disabled
LogFileMaxSize = "4294967295"
LogTime = "yes"
LogClean disabled
LogSyslog disabled
LogFacility = "LOG_LOCAL6"
LogVerbose disabled
LogRotate = "yes"
ExtendedDetectionInfo = "yes"
PidFile disabled
TemporaryDirectory disabled
DatabaseDirectory = "/var/lib/clamav"
OfficialDatabaseOnly disabled
LocalSocket = "/var/run/clamav/clamd.ctl"
LocalSocketGroup = "clamav"
LocalSocketMode = "666"
FixStaleSocket = "yes"
TCPSocket disabled
TCPAddr disabled
MaxConnectionQueueLength = "15"
StreamMaxLength = "26214400"
StreamMinPort = "1024"
StreamMaxPort = "2048"
MaxThreads = "12"
ReadTimeout = "180"
CommandReadTimeout = "5"
SendBufTimeout = "200"
MaxQueue = "100"
IdleTimeout = "30"
ExcludePath disabled
MaxDirectoryRecursion = "15"
FollowDirectorySymlinks disabled
FollowFileSymlinks disabled
CrossFilesystems = "yes"
SelfCheck = "3600"
DisableCache disabled
VirusEvent disabled
ExitOnOOM disabled
AllowAllMatchScan = "yes"
Foreground disabled
Debug disabled
LeaveTemporaryFiles disabled
User = "clamav"
Bytecode = "yes"
BytecodeSecurity = "TrustSigned"
BytecodeTimeout = "60000"
BytecodeUnsigned disabled
BytecodeMode = "Auto"
DetectPUA disabled
ExcludePUA disabled
IncludePUA disabled
AlgorithmicDetection = "yes"
ScanPE = "yes"
ScanELF = "yes"
DetectBrokenExecutables disabled
ScanMail = "yes"
ScanPartialMessages disabled
PhishingSignatures = "yes"
PhishingScanURLs = "yes"
PhishingAlwaysBlockCloak disabled
PhishingAlwaysBlockSSLMismatch disabled
PartitionIntersection disabled
HeuristicScanPrecedence disabled
StructuredDataDetection disabled
StructuredMinCreditCardCount = "3"
StructuredMinSSNCount = "3"
StructuredSSNFormatNormal = "yes"
StructuredSSNFormatStripped disabled
ScanHTML = "yes"
ScanOLE2 = "yes"
OLE2BlockMacros disabled
ScanPDF = "yes"
ScanSWF = "yes"
ScanXMLDOCS = "yes"
ScanHWP3 = "yes"
ScanArchive = "yes"
ArchiveBlockEncrypted disabled
ForceToDisk disabled
MaxScanSize = "104857600"
MaxFileSize = "26214400"
MaxRecursion = "16"
MaxFiles = "10000"
MaxEmbeddedPE = "10485760"
MaxHTMLNormalize = "10485760"
MaxHTMLNoTags = "2097152"
MaxScriptNormalize = "5242880"
MaxZipTypeRcg = "1048576"
MaxPartitions = "50"
MaxIconsPE = "100"
MaxRecHWP3 = "16"
PCREMatchLimit = "10000"
PCRERecMatchLimit = "5000"
PCREMaxFileSize = "26214400"
ScanOnAccess disabled
OnAccessMountPath disabled
OnAccessIncludePath disabled
OnAccessExcludePath disabled
OnAccessExcludeRootUID disabled
OnAccessExcludeUID disabled
OnAccessMaxFileSize = "5242880"
OnAccessDisableDDD disabled
OnAccessPrevention disabled
OnAccessExtraScanning disabled
DevACOnly disabled
DevACDepth disabled
DevPerformance disabled
DevLiblog disabled
DisableCertCheck disabled

Config file: freshclam.conf
---------------------------
LogFileMaxSize = "4294967295"
LogTime = "yes"
LogSyslog disabled
LogFacility = "LOG_LOCAL6"
LogVerbose disabled
LogRotate = "yes"
PidFile disabled
DatabaseDirectory = "/var/lib/clamav"
Foreground disabled
Debug disabled
UpdateLogFile = "/var/log/clamav/freshclam.log"
DatabaseOwner = "clamav"
Checks = "12"
DNSDatabaseInfo = "current.cvd.clamav.net"
DatabaseMirror = "db.local.clamav.net", "db.ipv6.clamav.net", "database.clamav.net"
PrivateMirror disabled
MaxAttempts = "5"
ScriptedUpdates = "yes"
TestDatabases = "yes"
CompressLocalDatabase disabled
ExtraDatabase disabled
DatabaseCustomURL disabled
HTTPProxyServer disabled
HTTPProxyPort disabled
HTTPProxyUsername disabled
HTTPProxyPassword disabled
HTTPUserAgent disabled
NotifyClamd = "/etc/clamav/clamd.conf"
OnUpdateExecute disabled
OnErrorExecute disabled
OnOutdatedExecute disabled
LocalIPAddress disabled
ConnectTimeout = "30"
ReceiveTimeout = "30"
SafeBrowsing disabled
Bytecode = "yes"

clamav-milter.conf not found

Software settings
-----------------
Version: 0.100.0
Optional features supported: MEMPOOL IPv6 FRESHCLAM_DNS_FIX AUTOIT_EA06 BZIP2 LIBXML2 PCRE ICONV JSON JIT

Database information
--------------------
Database directory: /var/lib/clamav
[3rd Party] bofhland_malware_URL.ndb: 2 sigs
[3rd Party] spamattach.hdb: 14 sigs
[3rd Party] sanesecurity.ftm: 170 sigs
[3rd Party] EK_Angler.yar: 283 sigs
[3rd Party] winnow_bad_cw.hdb: 1 sig 
[3rd Party] foxhole_generic.cdb: 211 sigs
[3rd Party] EK_Sakura.yar: 62 sigs
[3rd Party] junk.ndb: 56760 sigs
[3rd Party] EK_Fragus.yar: 210 sigs
[3rd Party] winnow.attachments.hdb: 5894 sigs
[3rd Party] scam.ndb: 12485 sigs
[3rd Party] EK_Phoenix.yar: 483 sigs
[3rd Party] winnow_malware.hdb: 293 sigs
[3rd Party] foxhole_filename.cdb: 1613 sigs
[3rd Party] bofhland_malware_attach.hdb: 1835 sigs
[3rd Party] bofhland_phishing_URL.ndb: 22 sigs
daily.cld: version 24718, sigs: 2002049, built on Tue Jul  3 06:42:19 2018
[3rd Party] EK_Eleonore.yar: 165 sigs
[3rd Party] porcupine.ndb: 3174 sigs
[3rd Party] malwarehash.hsb: 771 sigs
[3rd Party] winnow_malware_links.ndb: 4623 sigs
[3rd Party] Sanesecurity_spam.yara: 46 sigs
[3rd Party] rfxn.ndb: 2028 sigs
[3rd Party] bofhland_cracked_URL.ndb: 18 sigs
[3rd Party] EK_Blackhole.yar: 453 sigs
bytecode.cld: version 322, sigs: 90, built on Fri Jun 22 16:08:32 2018
[3rd Party] phishtank.ndb: 33249 sigs
[3rd Party] rogue.hdb: 4496 sigs
[3rd Party] EK_ZeroAcces.yar: 211 sigs
[3rd Party] rfxn.hdb: 12602 sigs
[3rd Party] Sanesecurity_sigtest.yara: 54 sigs
[3rd Party] winnow_extended_malware.hdb: 245 sigs
[3rd Party] EK_BleedingLife.yar: 112 sigs
[3rd Party] antidebug_antivm.yar: 1812 sigs
[3rd Party] EK_Zerox88.yar: 55 sigs
[3rd Party] winnow_malware.yara: 169 sigs
[3rd Party] blurl.ndb: 46614 sigs
[3rd Party] EK_Crimepack.yar: 49 sigs
[3rd Party] porcupine.hsb: 311 sigs
main.cld: version 58, sigs: 4566249, built on Wed Jun  7 23:38:10 2017
[3rd Party] spamimg.hdb: 158 sigs
[3rd Party] EK_Zeus.yar: 28 sigs
[3rd Party] phish.ndb: 27394 sigs
[3rd Party] jurlbl.ndb: 13082 sigs
[3rd Party] hackingteam.hsb: 435 sigs
Total number of signatures: 6801080

Platform information
--------------------
uname: Linux 4.9.0-7-amd64 #1 SMP Debian 4.9.107-1 (2018-06-13) x86_64
OS: linux-gnu, ARCH: x86_64, CPU: x86_64
Full OS version: Debian GNU/Linux 9.4 (stretch)
zlib version: 1.2.8 (1.2.8), compile flags: a9
Triple: x86_64-pc-linux-gnu
CPU: pentium2, Little-endian
platform id: 0x0a215b5b0806030001060300

Build information
-----------------
GNU C: 6.3.0 20170516 (6.3.0)
GNU C++: 6.3.0 20170516 (6.3.0)
CPPFLAGS: -Wdate-time -D_FORTIFY_SOURCE=2
CFLAGS: -g -O2 -fdebug-prefix-map=/build/clamav-oBKPFM/clamav-0.100.0+dfsg=. -fstack-protector-strong -Wformat -Werror=format-security -Wall -D_FILE_OFFSET_BITS=64 -fno-strict-aliasing  -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
CXXFLAGS: -g -O2 -fdebug-prefix-map=/build/clamav-oBKPFM/clamav-0.100.0+dfsg=. -fstack-protector-strong -Wformat -Werror=format-security -Wall -D_FILE_OFFSET_BITS=64
LDFLAGS: -Wl,-z,relro -Wl,-z,now -Wl,--as-needed
Configure: '--build=x86_64-linux-gnu' '--prefix=/usr' '--includedir=/usr/include' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--sysconfdir=/etc' '--localstatedir=/var' '--disable-silent-rules' '--libdir=/usr/lib/x86_64-linux-gnu' '--libexecdir=/usr/lib/x86_64-linux-gnu' '--disable-maintainer-mode' '--disable-dependency-tracking' 'CFLAGS=-g -O2 -fdebug-prefix-map=/build/clamav-oBKPFM/clamav-0.100.0+dfsg=. -fstack-protector-strong -Wformat -Werror=format-security -Wall -D_FILE_OFFSET_BITS=64' 'CPPFLAGS=-Wdate-time -D_FORTIFY_SOURCE=2' 'CXXFLAGS=-g -O2 -fdebug-prefix-map=/build/clamav-oBKPFM/clamav-0.100.0+dfsg=. -fstack-protector-strong -Wformat -Werror=format-security -Wall -D_FILE_OFFSET_BITS=64' 'LDFLAGS=-Wl,-z,relro -Wl,-z,now -Wl,--as-needed' '--with-dbdir=/var/lib/clamav' '--sysconfdir=/etc/clamav' '--disable-clamav' '--disable-unrar' '--enable-milter' '--enable-dns-fix' '--with-libjson' '--with-system-libmspack' '--with-libcurl=/usr' '--with-gnu-ld' '-with-system-llvm=/usr/bin/llvm-config' '--with-llvm-linking=dynamic' '--with-systemdsystemunitdir=/lib/systemd/system' 'build_alias=x86_64-linux-gnu'
sizeof(void*) = 8
Engine flevel: 91, dconf: 91

--- data dir ---
total 471560
-rw-r--r-- 1 clamav clamav     10889 Mar  6 22:55 EK_Angler.yar
-rw-r--r-- 1 clamav clamav     14659 Mar  6 22:55 EK_Blackhole.yar
-rw-r--r-- 1 clamav clamav      3401 Mar  6 22:55 EK_BleedingLife.yar
-rw-r--r-- 1 clamav clamav      1349 Mar  6 22:55 EK_Crimepack.yar
-rw-r--r-- 1 clamav clamav      4688 Mar  6 22:55 EK_Eleonore.yar
-rw-r--r-- 1 clamav clamav      8268 Mar  6 22:55 EK_Fragus.yar
-rw-r--r-- 1 clamav clamav     16842 Mar  6 22:55 EK_Phoenix.yar
-rw-r--r-- 1 clamav clamav      1860 Mar  6 22:55 EK_Sakura.yar
-rw-r--r-- 1 clamav clamav      8488 Mar  6 22:55 EK_ZeroAcces.yar
-rw-r--r-- 1 clamav clamav      1435 Mar  6 22:55 EK_Zerox88.yar
-rw-r--r-- 1 clamav clamav       800 Mar  6 22:55 EK_Zeus.yar
-rw-r--r-- 1 clamav clamav      1462 Jul  1  2015 Sanesecurity_sigtest.yara
-rw-r--r-- 1 clamav clamav      1233 Feb 22  2016 Sanesecurity_spam.yara
-rw-r--r-- 1 clamav clamav     47013 Mar  6 22:55 antidebug_antivm.yar
-rw-r--r-- 1 clamav clamav   7519880 Jul  3 07:11 blurl.ndb
-rw-r--r-- 1 clamav clamav      1770 Jul  1 03:02 bofhland_cracked_URL.ndb
-rw-r--r-- 1 clamav clamav       128 Jun 28 03:03 bofhland_malware_URL.ndb
-rw-r--r-- 1 clamav clamav    106188 Mar  6 22:03 bofhland_malware_attach.hdb
-rw-r--r-- 1 clamav clamav      2766 Jul  2 21:02 bofhland_phishing_URL.ndb
-rw-r--r-- 1 clamav clamav    947712 Jun 22 17:10 bytecode.cld
drwxr-xr-x 2 clamav clamav      4096 May 12  2013 clamav-0a47a4a7b96ec68cefacb0290f91268b
-rw-r--r-- 1 clamav clamav 143277568 Jul  3 07:30 daily.cld
-rw-r--r-- 1 clamav clamav    137631 Jun 29 10:10 foxhole_filename.cdb
-rw-r--r-- 1 clamav clamav     51613 Mar 26 15:11 foxhole_generic.cdb
-rw-r--r-- 1 clamav clamav     48176 Aug  5  2015 hackingteam.hsb
-rw-r--r-- 1 clamav clamav   7111512 Jul  2 09:15 junk.ndb
-rw-r--r-- 1 clamav clamav   1568640 Jul  3 07:11 jurlbl.ndb
-rw-r--r-- 1 clamav clamav 307499008 Jun  7  2017 main.cld
-rw-r--r-- 1 clamav clamav     73808 Jun 29  2017 malwarehash.hsb
-rw-r--r-- 1 clamav clamav      3900 Jul  3 08:30 mirrors.dat
-rw-r--r-- 1 clamav clamav   4038222 Jun 29 11:09 phish.ndb
-rw-r--r-- 1 clamav clamav   5108426 Jul  1 11:01 phishtank.ndb
-rw-r--r-- 1 clamav clamav     24284 Jul  3 05:01 porcupine.hsb
-rw-r--r-- 1 clamav clamav    341666 Jul  3 07:01 porcupine.ndb
-rw-r--r-- 1 clamav clamav    848077 May  9 07:36 rfxn.hdb
-rw-r--r-- 1 clamav clamav    450812 Jun 20 19:08 rfxn.ndb
-rw-r--r-- 1 clamav clamav    490895 Jul  2 16:11 rogue.hdb
-rw-r--r-- 1 clamav clamav     11098 Oct 18  2016 sanesecurity.ftm
-rw-r--r-- 1 clamav clamav   1895835 Jun 26 22:12 scam.ndb
-rw-r--r-- 1 clamav clamav       328 Jun 12 14:10 sigwhitelist.ign2
-rw-r--r-- 1 clamav clamav      1391 Apr 28  2017 spamattach.hdb
-rw-r--r-- 1 clamav clamav     15182 Jun 19 10:11 spamimg.hdb
-rw-r--r-- 1 clamav clamav    526635 Mar  5 09:00 winnow.attachments.hdb
-rw-r--r-- 1 clamav clamav        66 Mar  5 09:00 winnow_bad_cw.hdb
-rw-r--r-- 1 clamav clamav     16271 Mar  5 09:00 winnow_extended_malware.hdb
-rw-r--r-- 1 clamav clamav     18189 Mar  5 09:00 winnow_malware.hdb
-rw-r--r-- 1 clamav clamav      3782 Mar  5 09:00 winnow_malware.yara
-rw-r--r-- 1 clamav clamav    506160 Jun 26 12:27 winnow_malware_links.ndb

-- System Information:
Debian Release: 9.4
  APT prefers proposed-updates
  APT policy: (500, 'proposed-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.9.0-7-amd64 (SMP w/2 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages clamav-daemon depends on:
ii  adduser                         3.115
ii  clamav-base                     0.100.0+dfsg-0+deb9u1
ii  clamav-freshclam [clamav-data]  0.100.0+dfsg-0+deb9u1
ii  debconf [debconf-2.0]           1.5.61
ii  dpkg                            1.18.25
ii  init-system-helpers             1.48
ii  libc6                           2.24-11+deb9u3
ii  libclamav7                      0.100.0+dfsg-0+deb9u1
ii  libncurses5                     6.0+20161126-1+deb9u2
ii  libssl1.1                       1.1.0f-3+deb9u2
ii  libsystemd0                     232-25+deb9u3
ii  libtinfo5                       6.0+20161126-1+deb9u2
ii  lsb-base                        9.20161125
ii  procps                          2:3.3.12-3+deb9u1
ii  ucf                             3.0036
ii  zlib1g                          1:1.2.8.dfsg-5

Versions of packages clamav-daemon recommends:
ii  clamdscan  0.100.0+dfsg-0+deb9u1

Versions of packages clamav-daemon suggests:
ii  apparmor     2.11.0-3+deb9u2
pn  clamav-docs  <none>
pn  daemon       <none>

-- debconf information:
  clamav-daemon/MaxEmbeddedPE: 10M
  clamav-daemon/StatsHostID: auto
  clamav-daemon/LocalSocket: /var/run/clamav/clamd.ctl
  clamav-daemon/ScanMail: true
  clamav-daemon/DisableCertCheck: false
  clamav-daemon/AllowAllMatchScan: true
  clamav-daemon/ReadTimeout: 180
  clamav-daemon/LogRotate: true
  clamav-daemon/debconf: true
  clamav-daemon/TCPSocket: 3310
  clamav-daemon/ScanSWF: true
  clamav-daemon/BytecodeTimeout: 60000
  clamav-daemon/SelfCheck: 3600
  clamav-daemon/OnAccessMaxFileSize: 5M
  clamav-daemon/Bytecode: true
  clamav-daemon/MaxDirectoryRecursion: 15
  clamav-daemon/LogSyslog: false
  clamav-daemon/FixStaleSocket: true
  clamav-daemon/TCPAddr: any
  clamav-daemon/MaxZipTypeRcg: 1M
  clamav-daemon/LogFile: /var/log/clamav/clamav.log
  clamav-daemon/StatsTimeout: 10
  clamav-daemon/BytecodeSecurity: TrustSigned
  clamav-daemon/MaxScriptNormalize: 5M
  clamav-daemon/ScanArchive: true
  clamav-daemon/LogTime: true
  clamav-daemon/StatsEnabled: false
  clamav-daemon/MaxThreads: 12
  clamav-daemon/MaxHTMLNormalize: 10M
  clamav-daemon/LocalSocketMode: 666
  clamav-daemon/StatsPEDisabled: true
  clamav-daemon/ForceToDisk: false
  clamav-daemon/ScanOnAccess: false
  clamav-daemon/MaxConnectionQueueLength: 15
  clamav-daemon/FollowFileSymlinks: false
  clamav-daemon/AddGroups: amavis
  clamav-daemon/TcpOrLocal: UNIX
  clamav-daemon/User: clamav
  clamav-daemon/StreamMaxLength: 25
  clamav-daemon/LocalSocketGroup: clamav
  clamav-daemon/FollowDirectorySymlinks: false
  clamav-daemon/MaxHTMLNoTags: 2M


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