[Pkg-clamav-devel] Bug#888484: clamav: Security release 0.99.3 available

Rob N rob at eatenbyagrue.org
Fri Jan 26 09:35:25 UTC 2018


Package: clamav
Version: 0.99.2+dfsg-0+deb8u2
Severity: important

0.99.3 has been released, see http://blog.clamav.net/2018/01/clamav-0993-has-been-released.html.

This fixed a number of overflow bugs, each of which has assigned CVE numbers
due to the potential for denial of service.

We've have started seeing unexpected clamd crashes on a high-traffic mail
system today, though I've been unable to isolate a test case. It's seems like
too much of a coincidence that these crashes start happening the day after a
security release was announced. We've implemented mitigations but an updated
package would be even better.

Cheers!
Rob N.


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

Config file: clamd.conf
-----------------------
LogFile = "/var/log/clamav/clamav.log"
StatsHostID = "auto"
StatsEnabled disabled
StatsPEDisabled = "yes"
StatsTimeout = "10"
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"
AllowSupplementaryGroups disabled
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
OnAccessExcludeUID disabled
OnAccessMaxFileSize = "5242880"
OnAccessDisableDDD disabled
OnAccessPrevention disabled
OnAccessExtraScanning disabled
DevACOnly disabled
DevACDepth disabled
DevPerformance disabled
DevLiblog disabled
DisableCertCheck disabled

Config file: freshclam.conf
---------------------------
StatsHostID disabled
StatsEnabled disabled
StatsTimeout disabled
LogFileMaxSize = "4294967295"
LogTime = "yes"
LogSyslog disabled
LogFacility = "LOG_LOCAL6"
LogVerbose disabled
LogRotate = "yes"
PidFile disabled
DatabaseDirectory = "/var/lib/clamav"
Foreground disabled
Debug disabled
AllowSupplementaryGroups disabled
UpdateLogFile = "/var/log/clamav/freshclam.log"
DatabaseOwner = "clamav"
Checks = "24"
DNSDatabaseInfo = "current.cvd.clamav.net"
DatabaseMirror = "db.local.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"
SubmitDetectionStats disabled
DetectionStatsCountry disabled
DetectionStatsHostID disabled
SafeBrowsing disabled
Bytecode = "yes"

clamav-milter.conf not found

Software settings
-----------------
Version: 0.99.2
Optional features supported: MEMPOOL IPv6 FRESHCLAM_DNS_FIX AUTOIT_EA06 BZIP2 LIBXML2 PCRE ICONV JSON RAR JIT

Database information
--------------------
Database directory: /var/lib/clamav
bytecode.cld: version 283, sigs: 53, built on Thu Jun 23 15:01:37 2016
daily.cld: version 22385, sigs: 730021, built on Tue Oct 18 05:56:58 2016
main.cvd: version 57, sigs: 4218790, built on Wed Mar 16 23:17:06 2016
Total number of signatures: 4948864

Platform information
--------------------
uname: Linux 4.9.37-fm64 #1 SMP Fri Jul 14 10:59:57 UTC 2017 x86_64
OS: linux-gnu, ARCH: x86_64, CPU: x86_64
Full OS version: Debian GNU/Linux 8.8 (jessie)
zlib version: 1.2.8 (1.2.8), compile flags: a9
Triple: x86_64-pc-linux-gnu
CPU: corei7, Little-endian
platform id: 0x0a2152520804090201040902

Build information
-----------------
GNU C: 4.9.2 (4.9.2)
GNU C++: 4.9.2 (4.9.2)
CPPFLAGS: -D_FORTIFY_SOURCE=2
CFLAGS: -g -O2 -fPIE -fstack-protector-strong -Wformat -Werror=format-security -Wall -D_FILE_OFFSET_BITS=64 -fno-strict-aliasing  -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
CXXFLAGS: 
LDFLAGS: -fPIE -pie -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' '--libexecdir=/usr/lib/clamav' '--disable-maintainer-mode' '--disable-dependency-tracking' 'CFLAGS=-g -O2 -fPIE -fstack-protector-strong -Wformat -Werror=format-security -Wall -D_FILE_OFFSET_BITS=64' 'CPPFLAGS=-D_FORTIFY_SOURCE=2' 'CXXFLAGS=-g -O2 -fPIE -fstack-protector-strong -Wformat -Werror=format-security -Wall -D_FILE_OFFSET_BITS=64' 'LDFLAGS=-fPIE -pie -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-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: 82, dconf: 82

--- data dir ---
total 154708
-rw-r--r-- 1 sshd clamav    446464 Jun 23  2016 bytecode.cld
-rw-r--r-- 1 sshd clamav  48823808 Oct 18  2016 daily.cld
-rw-r--r-- 1 sshd clamav 109143933 Apr  8  2016 main.cvd
-rw------- 1 sshd clamav       936 Oct 18  2016 mirrors.dat

-- System Information:
Debian Release: 8.8
  APT prefers oldstable
  APT policy: (500, 'oldstable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.9.37-fm64 (SMP w/16 CPU cores)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/bash
Init: sysvinit (via /sbin/init)

Versions of packages clamav depends on:
ii  clamav-freshclam [clamav-data]  0.99.2+dfsg-0+deb8u2
ii  libc6                           2.19-18+deb8u9
ii  libclamav7                      0.99.2+dfsg-0+deb8u2
ii  libcurl3                        7.38.0-4+deb8u8
ii  libssl1.0.0                     1.0.1t-1+deb8u6
ii  zlib1g                          1:1.2.8.dfsg-2+b1

Versions of packages clamav recommends:
ii  clamav-base  0.99.2+dfsg-0+deb8u2

Versions of packages clamav suggests:
pn  clamav-docs  <none>

-- no debconf information



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