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[gentoo-announce] [ GLSA 201701-72 ] libXpm: Remote execution of arbitrary code

Posted on 29 January 2017
Gentoo-announce

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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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