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Gentoo Linux Security Advisory                           GLSA 201412-46
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                                            http://security.gentoo.org/
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 Severity: Normal
    Title: LittleCMS: Denial of Service
     Date: December 26, 2014
     Bugs: #479874, #507788
       ID: 201412-46

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Synopsis
========

Multiple buffer overflow flaws and a parser error in LittleCMS could
cause Denial of Service.

Background
==========

LittleCMS, or short lcms, is a color management system for working with
ICC profiles. It is used by many applications including GIMP and
Firefox.

Affected packages
=================

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  media-libs/lcms              < 2.6-r1                  >= 2.6-r1

Description
===========

Multiple stack-based buffer overflows and a profile parser error have
been found in LittleCMS.

Impact
======

A remote attacker could entice a user or automated system to open a
specially crafted file containing a malicious ICC profile, possibly
resulting in a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All LittleCMS users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=media-libs/lcms-2.6-r1"

Packages which depend on this library may need to be recompiled. Tools
such as revdep-rebuild may assist in identifying these packages.

NOTE: Gentoo has discontinued support for the LittleCMS 1.9 branch.

References
==========

[ 1 ] CVE-2013-4276
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4276
[ 2 ] CVE-2014-0459
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-0459

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

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

 http://security.gentoo.org/glsa/glsa-201412-46.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 2014 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