libxslt: Execution of arbitrary code

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200806-02 / libxslt
Release Date	June 03, 2008
Latest Revision	June 03, 2008: 01
Impact	normal
Exploitable	remote

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

Related bugreports: #222499

Synopsis

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

2. Impact Information

Background

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

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.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All libxslt users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/libxslt-1.1.24"

4. References

CVE-2008-1767

Page updated June 03, 2008

Summary: This is a Gentoo Linux Security Advisory

Security Team
Contact Address

Donate to support our development efforts.