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Gentoo Linux Security Advisory                           GLSA 201502-08
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                                            http://security.gentoo.org/
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 Severity: Normal
    Title: Libav: Multiple vulnerabilities
     Date: February 07, 2015
     Bugs: #492582, #515234, #531832
       ID: 201502-08

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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             < 9.17                     >= 9.17

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-9.17"

References
==========

[  1 ] CVE-2011-3934
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3934
[  2 ] CVE-2011-3935
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3935
[  3 ] CVE-2011-3946
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3946
[  4 ] CVE-2013-0848
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-0848
[  5 ] CVE-2013-0851
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-0851
[  6 ] CVE-2013-0852
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-0852
[  7 ] CVE-2013-0860
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-0860
[  8 ] CVE-2013-0868
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-0868
[  9 ] CVE-2013-3672
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-3672
[ 10 ] CVE-2013-3674
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-3674
[ 11 ] CVE-2014-4609
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-4609
[ 12 ] Libav News November 2, 2013
       https://libav.org/news.html#0.8.9

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

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

 http://security.gentoo.org/glsa/glsa-201502-08.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 2015 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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