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Gentoo Linux Security Advisory                           GLSA 200811-03
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http://security.gentoo.org/ 
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  Severity: Normal
     Title: FAAD2: User-assisted execution of arbitrary code
      Date: November 09, 2008
      Bugs: #238445
        ID: 200811-03

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Synopsis
=======
A buffer overflow in FAAD2 might lead to user-assisted execution of
arbitrary code via an MP4 file.

Background
=========
FAAD2 is an open source MPEG-4 and MPEG-2 AAC decoder.

Affected packages
================
    -------------------------------------------------------------------
     Package           /  Vulnerable  /                     Unaffected
    -------------------------------------------------------------------
  1  media-libs/faad2     < 2.6.1-r2                       >= 2.6.1-r2

Description
==========
The ICST-ERCIS (Peking University) reported a heap-based buffer
overflow in the decodeMP4file() function in frontend/main.c.

Impact
=====
A remote attacker could entice a user to open a specially crafted
MPEG-4 (MP4) file in an application using FAAD2, possibly leading to
the execution of arbitrary code.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All FAAD2 users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-libs/faad2-2.6.1-r2"

References
=========
  [ 1 ] CVE-2008-4201
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4201 

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

http://security.gentoo.org/glsa/glsa-200811-03.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 2008 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 


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