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Gentoo Linux Security Advisory                           GLSA 201401-10
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                                            https://security.gentoo.org/
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 Severity: Normal
    Title: libexif, exif: Multiple vulnerabilities
     Date: January 19, 2014
     Bugs: #426366
       ID: 201401-10

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Synopsis
=======
Multiple vulnerabilities have been found in libexif and exif, some of
which may allow execution of arbitrary code.

Background
=========
libexif is a library for parsing, editing and saving Exif metadata from
images. exif is a small command line interface for libexif.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  media-libs/libexif           < 0.6.21                  >= 0.6.21
  2  media-gfx/exif               < 0.6.21                  >= 0.6.21
    -------------------------------------------------------------------
     2 affected packages

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

Impact
=====
A remote attacker could entice a user to open a specially crafted image
file using exif or an application linked against libexif, possibly
resulting in execution of arbitrary code with the privileges of the
process or a Denial of Service condition.

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

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

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=media-libs/libexif-0.6.21"

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

All exif users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=media-gfx/exif-0.6.21"

References
=========
[ 1 ] CVE-2012-2812
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2812
[ 2 ] CVE-2012-2813
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2813
[ 3 ] CVE-2012-2814
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2814
[ 4 ] CVE-2012-2836
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2836
[ 5 ] CVE-2012-2837
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2837
[ 6 ] CVE-2012-2840
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2840
[ 7 ] CVE-2012-2841
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2841
[ 8 ] CVE-2012-2845
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2845

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

 https://security.gentoo.org/glsa/201401-10

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.

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