libxslt: Denial of Service

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 201203-08 / libxslt
Release Date	March 06, 2012
Latest Revision	March 06, 2012: 1
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
dev-libs/libxslt	< 1.1.26-r3	>= 1.1.26-r3	All supported architectures

Related bugreports: #402861

Synopsis

A vulnerability in libxslt could result in Denial of Service.

2. Impact Information

Background

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

Description

An out of bounds read error has been found in libxslt/pattern.c in libxslt.

Impact

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

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-1.1.26-r3"

4. References

CVE-2011-3970

Page updated March 06, 2012

Summary: This is a Gentoo Linux Security Advisory

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