GLSA 200806-02: libxslt: Execution of arbitrary code

http://security.gentoo.org/

Severity:	normal
Title:	libxslt: Execution of arbitrary code
Date:	06/03/2008
Bugs:	#222499
ID:	200806-02

Synopsis

A vulnerability was found in libxslt, possibly resulting in the execution of arbitrary code and Denial of Service.

Background

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

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
dev-libs/libxslt	< 1.1.24	>= 1.1.24	All supported architectures

Description

Anthony de Almeida Lopes reported a vulnerability in libxslt when handling XSL style-sheet files, which could be exploited to trigger the use of uninitialized memory, e.g. in a call to "free()".

Impact

A remote attacker could entice a user or automated system to process an XML file using a specially crafted XSL transformation file, possibly resulting in the execution of arbitrary code or a Denial of Service.

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-1.1.24"

References

CVE-2008-1767

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200806-02.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.