GLSA 201701-72: libXpm: Remote execution of arbitrary code

http://security.gentoo.org/

Severity:	normal
Title:	libXpm: Remote execution of arbitrary code
Date:	01/29/2017
Bugs:	#602782
ID:	201701-72

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	Architecture(s)
x11-libs/libXpm	< 3.5.12	>= 3.5.12	All supported architectures

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

CVE-2016-10164

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201701-72.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.