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AUSCERT External Security Bulletin Redistribution
ESB-2011.1117
ffmpeg security update
8 November 2011
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AusCERT Security Bulletin Summary
---------------------------------
Product: ffmpeg
Publisher: Debian
Operating System: Debian GNU/Linux 6
Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2011-3974 CVE-2011-3973 CVE-2011-3504
CVE-2011-3362
Original Bulletin:
http://www.debian.org/security/2011/dsa-2336
Comment: This advisory references vulnerabilities in products which run on
platforms other than Debian. It is recommended that administrators
running ffmpeg check for an updated version of the software for
their operating system.
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Debian Security Advisory DSA-2336-1 security@debian.org
http://www.debian.org/security/ Yves-Alexis Perez
November 07, 2011 http://www.debian.org/security/faq
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Package : ffmpeg
Vulnerability : several
Problem type : remote
Debian-specific: no
CVE ID : CVE-2011-3362 CVE-2011-3973 CVE-2011-3974 CVE-2011-3504
Debian Bug : 641478
Multiple vulnerabilities were found in the ffmpeg, a multimedia player,
server and encoder:
CVE-2011-3362
An integer signedness error in decode_residual_block function of
the Chinese AVS video (CAVS) decoder in libavcodec can lead to
denial of service (memory corruption and application crash) or
possible code execution via a crafted CAVS file.
CVE-2011-3973/CVE-2011-3974
Multiple errors in the Chinese AVS video (CAVS) decoder can lead to
denial of service (memory corruption and application crash) via an
invalid bitstream.
CVE-2011-3504
A memory allocation problem in the Matroska format decoder can lead
to code execution via a crafted file.
For the stable distribution (squeeze), this problem has been fixed in
version 4:0.5.5-1.
For the unstable distribution (sid), this problem has been fixed in
version 4:0.7.2-1 of the libav source package.
Security support for ffmpeg has been discontinued for the oldstable
distribution (lenny) before in DSA 2306.
The current version in oldstable is not supported by upstream anymore
and is affected by several security issues. Backporting fixes for these
and any future issues has become unfeasible and therefore we needed to
drop our security support for the version in oldstable.
We recommend that you upgrade your ffmpeg packages.
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
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