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Gentoo Linux Security Advisory                           GLSA 201811-19
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: Libav: Multiple vulnerabilities
     Date: November 27, 2018
     Bugs: #637458
       ID: 201811-19

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Synopsis
=======
Multiple vulnerabilities have been found in Libav, the worst of which
may allow a Denial of Service condition.

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

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  media-video/libav             < 12.3                     >= 12.3

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

Impact
=====
A remote attacker, via a crafted Smacker stream, could cause 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-12.3"

References
=========
[ 1 ] CVE-2017-16803
      https://nvd.nist.gov/vuln/detail/CVE-2017-16803
[ 2 ] CVE-2017-7862
      https://nvd.nist.gov/vuln/detail/CVE-2017-7862

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

 https://security.gentoo.org/glsa/201811-19

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 2018 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.

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