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Ubuntu: Security update for FFmpeg

It was discovered that FFmpeg incorrectly handled certain malformed media files. If a user were tricked into opening a crafted media 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.

Updated packages are available from security.ubuntu.com.

==========================================================================
Ubuntu Security Notice USN-1675-1
December 19, 2012

ffmpeg vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 10.04 LTS

Summary:

FFmpeg could be made to crash or run programs as your login if it opened a
specially crafted file.

Software Description:
- ffmpeg: multimedia player, server and encoder

Details:

It was discovered that FFmpeg incorrectly handled certain malformed media
files. If a user were tricked into opening a crafted media 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.

Update instructions:

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

Ubuntu 10.04 LTS:
 libavcodec52                    4:0.5.9-0ubuntu0.10.04.2
 libavformat52                   4:0.5.9-0ubuntu0.10.04.2

In general, a standard system update will make all the necessary changes.

References:
 http://www.ubuntu.com/usn/usn-1675-1
 CVE-2012-2777, CVE-2012-2784, CVE-2012-2788, CVE-2012-2801

Package Information:
 https://launchpad.net/ubuntu/+source/ffmpeg/4:0.5.9-0ubuntu0.10.04.2
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