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Ubuntu Security Notice USN-931-2 April 26, 2010
ffmpeg, ffmpeg-debian regression

https://launchpad.net/bugs/567913

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A security issue affects the following Ubuntu releases:

Ubuntu 8.04 LTS
Ubuntu 8.10
Ubuntu 9.04
Ubuntu 9.10

This advisory also applies to the corresponding versions of
Kubuntu, Edubuntu, and Xubuntu.

The problem can be corrected by upgrading your system to the
following package versions:

Ubuntu 8.04 LTS:
libavcodec1d 3:0.cvs20070307-5ubuntu7.5
libavformat1d 3:0.cvs20070307-5ubuntu7.5

Ubuntu 8.10:
libavcodec51 3:0.svn20080206-12ubuntu3.3
libavformat52 3:0.svn20080206-12ubuntu3.3

Ubuntu 9.04:
libavcodec52 3:0.svn20090303-1ubuntu6.2
libavformat52 3:0.svn20090303-1ubuntu6.2

Ubuntu 9.10:
libavcodec52 4:0.5+svn20090706-2ubuntu2.2
libavformat52 4:0.5+svn20090706-2ubuntu2.2

In general, a standard system upgrade is sufficient to effect the
necessary changes.

Details follow:

USN-931-1 fixed vulnerabilities in FFmpeg. The update introduced a
regression when trying to play certain multimedia files. This update fixes
the problem.

We apologize for the inconvenience.

Original advisory details:

It was discovered that FFmpeg contained multiple security issues when
handling certain multimedia files. If a user were tricked into opening a
crafted multimedia file, an attacker could cause a denial of service via
application crash, or possibly execute arbitrary code with the privileges
of the user invoking the program.