GLSA 201401-07: libxslt: Denial of Service

http://security.gentoo.org/

Severity:	normal
Title:	libxslt: Denial of Service
Date:	01/10/2014
Bugs:	#433603, #436284, #463236, #496114
ID:	201401-07

Synopsis

Multiple Denial of Service vulnerabilities have been found in libxslt.

Background

libxslt is the XSLT C library developed for the GNOME project. XSLT is an XML language to define transformations for XML.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
dev-libs/libxslt	< 1.1.28	>= 1.1.28	All supported architectures

Description

Multiple vulnerabilities have been found in libxslt:

Multiple errors exist in pattern.c and functions.c (CVE-2012-2870, CVE-2012-6139).
A double-free error exists in templates.c (CVE-2012-2893).
A NULL pointer dereference in keys.c (CVE-2012-6139).
An error in handling stylesheets containing DTDs (CVE-2013-4520).

Impact

A remote attacker could entice a user to process a specially crafted file in an application linked against libxslt, possibly resulting in a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All libxslt users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=dev-libs/libxslt-1.1.28"

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

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201401-07.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.