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[gentoo-announce] [ GLSA 201210-06 ] Libav: Multiple vulnerabilities

Posted on 20 October 2012
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 201210-06
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http://security.gentoo.org/
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Severity: Normal
Title: Libav: Multiple vulnerabilities
Date: October 20, 2012
Bugs: #408555, #422537
ID: 201210-06

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Synopsis
========
Multiple vulnerabilities have been found in Libav, allowing attackers
to execute arbitrary code or cause Denial of Service.

Background
==========
Libav is a complete solution to record, convert and stream audio and
video.

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-video/libav < 0.8.3 >= 0.8.3

Description
===========
Multiple vulnerabilities have been discovered in Libav. Please review
the CVE identifiers referenced below for details.

Impact
======
A remote attacker could entice a user to open a specially crafted media
file in an application linked against Libav, possibly resulting in
execution of arbitrary code with the privileges of the application or a
Denial of Service condition.

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

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

# emerge --sync
# emerge --ask --oneshot --verbose ">=media-video/libav-0.8.3"

References
==========
[ 1 ] CVE-2011-3929
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3929
[ 2 ] CVE-2011-3936
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3936
[ 3 ] CVE-2011-3937
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3937
[ 4 ] CVE-2011-3937
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3937
[ 5 ] CVE-2011-3940
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3940
[ 6 ] CVE-2011-3945
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3945
[ 7 ] CVE-2011-3947
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3947
[ 8 ] CVE-2011-3951
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3951
[ 9 ] CVE-2011-3952
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3952
[ 10 ] CVE-2012-0848
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-0848
[ 11 ] CVE-2012-0851
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-0851
[ 12 ] CVE-2012-0852
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-0852
[ 13 ] CVE-2012-0853
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-0853
[ 14 ] CVE-2012-0858
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-0858
[ 15 ] CVE-2012-0947
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-0947

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

http://security.gentoo.org/glsa/glsa-201210-06.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
https://bugs.gentoo.org.

License
=======
Copyright 2012 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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