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Gentoo Linux Security Advisory                           GLSA 201402-21
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                                            https://security.gentoo.org/
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 Severity: Normal
    Title: libTIFF: Multiple vulnerabilities
     Date: February 21, 2014
     Bugs: #440154, #440944, #468334, #480466, #486590
       ID: 201402-21

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Synopsis
=======
Multiple vulnerabilities have been found in libTIFF, allowing remote
attackers to execute arbitrary code or cause Denial of Service.

Background
=========
libTIFF provides support for reading and manipulating TIFF (Tagged
Image File Format) images.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  media-libs/tiff             < 4.0.3-r6              *>= 3.9.7-r1
                                                          >= 4.0.3-r6

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

Impact
=====
A remote attacker could entice a user to open a specially crafted TIFF
file with an application making use of libTIFF, possibly resulting in
execution of arbitrary code with the privileges of the user running the
application or a Denial of Service condition.

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

Resolution
=========
All libTIFF 4.* users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=media-libs/tiff-4.0.3-r6"

All libTIFF 3.* users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=media-libs/tiff-3.9.7-r1"

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

References
=========
[ 1 ] CVE-2012-4447
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4447
[ 2 ] CVE-2012-4564
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4564
[ 3 ] CVE-2013-1960
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-1960
[ 4 ] CVE-2013-1961
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-1961
[ 5 ] CVE-2013-4231
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4231
[ 6 ] CVE-2013-4232
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4232
[ 7 ] CVE-2013-4244
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4244

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

 https://security.gentoo.org/glsa/201402-21

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/