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Gentoo Linux Security Advisory                           GLSA 201405-20
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                                            http://security.gentoo.org/
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 Severity: Normal
    Title: JBIG-KIT: Denial of Service
     Date: May 18, 2014
     Bugs: #507254
       ID: 201405-20

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Synopsis
========

A stack-based buffer overflow in JBIG-KIT might allow remote attackers
to cause a Denial of Service.

Background
==========

JBIG-KIT is a software implementation of the JBIG1 data compression
standard.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  media-libs/jbigkit            < 2.1                       >= 2.1 

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

JBIG-KIT contains a stack-based buffer overflow in the jbg_dec_in
function in libjbig/jbig.c.

Impact
======

A remote attacker could possibly cause a Denial of Service condition
via a specially crafted image file.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All JBIG-KIT users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=media-libs/jbigkit-2.1"

References
==========

[ 1 ] CVE-2013-6369
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-6369

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

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

 http://security.gentoo.org/glsa/glsa-201405-20.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