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Gentoo Linux Security Advisory                           GLSA 201701-61
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: WebP: Multiple vulnerabilities
     Date: January 24, 2017
     Bugs: #598208
       ID: 201701-61

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Synopsis
=======
Multiple vulnerabilities have been discovered in WebP, the worst of
which could allow a remote attacker to cause a Denial of Service
condition.

Background
=========
WebP is an image format employing both lossy and lossless compression.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  media-libs/libwebp           < 0.5.2                    >= 0.5.2

Description
==========
Multiple vulnerabilities have been discovered in WebP's gif2webp tool.
Please review the CVE identifier and bug reference for details.

Impact
=====
A remote attacker, by enticing a user to process a specially crafted
file using WebP's gif2webp tool, could possibly cause a Denial of
Service condition or other unspecified impacts.

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

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

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=media-libs/libwebp-0.5.2"

References
=========
[ 1 ] CVE-2016-9085
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-9085

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

 https://security.gentoo.org/glsa/201701-61

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 2017 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/