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From: Thomas Deutschmann <whissi@gentoo.org>
To: gentoo-announce@lists.gentoo.org
Message-ID: <a39c99c1-0af6-cfb3-1ed5-da1d44804ca9@gentoo.org>
Subject: [ GLSA 201701-72 ] libXpm: Remote execution of arbitrary code

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Gentoo Linux Security Advisory                           GLSA 201701-72
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: libXpm: Remote execution of arbitrary code
     Date: January 29, 2017
     Bugs: #602782
       ID: 201701-72

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Synopsis
========

An integer overflow in libXpm might allow remote attackers to execute
arbitrary code or cause a Denial of Service Condition.

Background
==========

The X PixMap image format is an extension of the monochrome X BitMap
format specified in the X protocol, and is commonly used in traditional
X applications.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  x11-libs/libXpm              < 3.5.12                  >= 3.5.12

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

An integer overflow was discovered in libXpm's src/CrDatFrI.c file.  On
64 bit systems, this allows an overflow to occur on 32 bit integers
while parsing XPM extensions in a file.

Impact
======

A remote attacker, by enticing a user to process a specially crafted
XPM file, could execute arbitrary code with the privileges of the
process or cause a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All libXpm users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=x11-libs/libXpm-3.5.12"

References
==========

[ 1 ] CVE-2016-10164
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-10164

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

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

 https://security.gentoo.org/glsa/201701-72

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.

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


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