A new security update has been released for Gentoo Linux - FFmpeg: Buffer overflows. Here the announcement:

Gentoo Linux Security Advisory GLSA 200609-09
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http://security.gentoo.org/
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Severity: Normal
Title: FFmpeg: Buffer overflows
Date: September 13, 2006
Bugs: #133520
ID: 200609-09

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Synopsis
========

FFmpeg is vulnerable to multiple buffer overflows that might be
exploited to execute arbitrary code.

Background
==========

FFmpeg is a very fast video and audio converter.

Affected packages
=================

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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-video/ffmpeg < 0.4.9_p20060530 >= 0.4.9_p20060530

Description
===========

FFmpeg contains buffer overflows in the AVI processing code.

Impact
======

An attacker could trigger the buffer overflows by enticing a user to
load a specially crafted AVI file in an application using the FFmpeg
library. This might result in the execution of arbitrary code in the
context of the running application.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All FFmpeg users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=media-video/ffmpeg-0.4.9_p20060530"

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200609-09.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2006 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5