Moderate: libxml2 security update

Related Vulnerabilities: CVE-2013-0338   CVE-2013-0338  

Synopsis

Moderate: libxml2 security update

Type/Severity

Security Advisory: Moderate

Topic

Updated libxml2 packages that fix one security issue are now available for
Red Hat Enterprise Linux 5 and 6.

The Red Hat Security Response Team has rated this update as having moderate
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.

Description

The libxml2 library is a development toolbox providing the implementation
of various XML standards.

A denial of service flaw was found in the way libxml2 performed string
substitutions when entity values for entity references replacement was
enabled. A remote attacker could provide a specially-crafted XML file that,
when processed by an application linked against libxml2, would lead to
excessive CPU consumption. (CVE-2013-0338)

All users of libxml2 are advised to upgrade to these updated packages,
which contain a backported patch to correct this issue. The desktop must
be restarted (log out, then log back in) for this update to take effect.

Solution

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

Affected Products

  • Red Hat Enterprise Linux Server 6 x86_64
  • Red Hat Enterprise Linux Server 6 i386
  • Red Hat Enterprise Linux Server 5 x86_64
  • Red Hat Enterprise Linux Server 5 ia64
  • Red Hat Enterprise Linux Server 5 i386
  • Red Hat Enterprise Linux Server - Extended Update Support 6.4 x86_64
  • Red Hat Enterprise Linux Server - Extended Update Support 6.4 i386
  • Red Hat Enterprise Linux Server - Extended Update Support 5.9 x86_64
  • Red Hat Enterprise Linux Server - Extended Update Support 5.9 ia64
  • Red Hat Enterprise Linux Server - Extended Update Support 5.9 i386
  • Red Hat Enterprise Linux Server - AUS 5.9 ia64
  • Red Hat Enterprise Linux Server - AUS 5.9 i386
  • Red Hat Enterprise Linux Workstation 6 x86_64
  • Red Hat Enterprise Linux Workstation 6 i386
  • Red Hat Enterprise Linux Workstation 5 x86_64
  • Red Hat Enterprise Linux Workstation 5 i386
  • Red Hat Enterprise Linux Desktop 6 x86_64
  • Red Hat Enterprise Linux Desktop 5 x86_64
  • Red Hat Enterprise Linux Desktop 5 i386
  • Red Hat Enterprise Linux for IBM z Systems 6 s390x
  • Red Hat Enterprise Linux for IBM z Systems 5 s390x
  • Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 6.4 s390x
  • Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 5.9 s390x
  • Red Hat Enterprise Linux for Power, big endian 6 ppc64
  • Red Hat Enterprise Linux for Power, big endian 5 ppc
  • Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.4 ppc64
  • Red Hat Enterprise Linux for Power, big endian - Extended Update Support 5.9 ppc
  • Red Hat Enterprise Linux for Scientific Computing 6 x86_64
  • Red Hat Enterprise Linux Server from RHUI 6 x86_64
  • Red Hat Enterprise Linux Server from RHUI 6 i386
  • Red Hat Enterprise Linux Server from RHUI 5 x86_64
  • Red Hat Enterprise Linux Server from RHUI 5 i386
  • Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.4 x86_64
  • Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.4 i386
  • Red Hat Enterprise Linux Server - Extended Update Support from RHUI 5.9 x86_64
  • Red Hat Gluster Storage Server for On-premise 2.1 x86_64
  • Red Hat Storage for Public Cloud (via RHUI) 2.1 x86_64
  • Red Hat Enterprise Linux Server - AUS 6.4 x86_64
  • Red Hat Enterprise Linux Server - AUS 5.9 x86_64
  • Red Hat Enterprise Linux Desktop 6 i386
  • Red Hat Enterprise Linux Server - Extended Update Support from RHUI 5.9 i386

Fixes

  • BZ - 912400 - CVE-2013-0338 libxml2: CPU consumption DoS when performing string substitutions during entities expansion

CVEs

References