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Gentoo Linux Security Advisory 201210-06

Gentoo Linux Security Advisory 201210-06
Posted Oct 21, 2012
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201210-6 - Multiple vulnerabilities have been found in Libav, allowing attackers to execute arbitrary code or cause Denial of Service. Versions less than 0.8.3 are affected.

tags | advisory, denial of service, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2011-3929, CVE-2011-3936, CVE-2011-3937, CVE-2011-3937, CVE-2011-3940, CVE-2011-3945, CVE-2011-3947, CVE-2011-3951, CVE-2011-3952, CVE-2012-0848, CVE-2012-0851, CVE-2012-0852, CVE-2012-0853, CVE-2012-0858, CVE-2012-0947
MD5 | 1e718c33d43474e1192d38dd3664068d

Gentoo Linux Security Advisory 201210-06

Change Mirror Download
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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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