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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Moderate: libxml2 security update
Advisory ID:       RHSA-2014:1885-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2014-1885.html
Issue date:        2014-11-20
CVE Names:         CVE-2014-3660 
=====================================================================

1. Summary:

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

Red Hat Product Security 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.

2. Relevant releases/architectures:

RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

3. Description:

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

A denial of service flaw was found in libxml2, a library providing support
to read, modify and write XML and HTML files. A remote attacker could
provide a specially crafted XML file that, when processed by an application
using libxml2, would lead to excessive CPU consumption (denial of service)
based on excessive entity substitutions, even if entity substitution was
disabled, which is the parser default behavior. (CVE-2014-3660)

All libxml2 users 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.

4. 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/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1149084 - CVE-2014-3660 libxml2: denial of service via recursive entity expansion

6. Package List:

Red Hat Enterprise Linux Desktop (v. 5 client):

Source:
libxml2-2.6.26-2.1.25.el5_11.src.rpm

i386:
libxml2-2.6.26-2.1.25.el5_11.i386.rpm
libxml2-debuginfo-2.6.26-2.1.25.el5_11.i386.rpm
libxml2-python-2.6.26-2.1.25.el5_11.i386.rpm

x86_64:
libxml2-2.6.26-2.1.25.el5_11.i386.rpm
libxml2-2.6.26-2.1.25.el5_11.x86_64.rpm
libxml2-debuginfo-2.6.26-2.1.25.el5_11.i386.rpm
libxml2-debuginfo-2.6.26-2.1.25.el5_11.x86_64.rpm
libxml2-python-2.6.26-2.1.25.el5_11.x86_64.rpm

RHEL Desktop Workstation (v. 5 client):

Source:
libxml2-2.6.26-2.1.25.el5_11.src.rpm

i386:
libxml2-debuginfo-2.6.26-2.1.25.el5_11.i386.rpm
libxml2-devel-2.6.26-2.1.25.el5_11.i386.rpm

x86_64:
libxml2-debuginfo-2.6.26-2.1.25.el5_11.i386.rpm
libxml2-debuginfo-2.6.26-2.1.25.el5_11.x86_64.rpm
libxml2-devel-2.6.26-2.1.25.el5_11.i386.rpm
libxml2-devel-2.6.26-2.1.25.el5_11.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
libxml2-2.6.26-2.1.25.el5_11.src.rpm

i386:
libxml2-2.6.26-2.1.25.el5_11.i386.rpm
libxml2-debuginfo-2.6.26-2.1.25.el5_11.i386.rpm
libxml2-devel-2.6.26-2.1.25.el5_11.i386.rpm
libxml2-python-2.6.26-2.1.25.el5_11.i386.rpm

ia64:
libxml2-2.6.26-2.1.25.el5_11.i386.rpm
libxml2-2.6.26-2.1.25.el5_11.ia64.rpm
libxml2-debuginfo-2.6.26-2.1.25.el5_11.i386.rpm
libxml2-debuginfo-2.6.26-2.1.25.el5_11.ia64.rpm
libxml2-devel-2.6.26-2.1.25.el5_11.ia64.rpm
libxml2-python-2.6.26-2.1.25.el5_11.ia64.rpm

ppc:
libxml2-2.6.26-2.1.25.el5_11.ppc.rpm
libxml2-2.6.26-2.1.25.el5_11.ppc64.rpm
libxml2-debuginfo-2.6.26-2.1.25.el5_11.ppc.rpm
libxml2-debuginfo-2.6.26-2.1.25.el5_11.ppc64.rpm
libxml2-devel-2.6.26-2.1.25.el5_11.ppc.rpm
libxml2-devel-2.6.26-2.1.25.el5_11.ppc64.rpm
libxml2-python-2.6.26-2.1.25.el5_11.ppc.rpm

s390x:
libxml2-2.6.26-2.1.25.el5_11.s390.rpm
libxml2-2.6.26-2.1.25.el5_11.s390x.rpm
libxml2-debuginfo-2.6.26-2.1.25.el5_11.s390.rpm
libxml2-debuginfo-2.6.26-2.1.25.el5_11.s390x.rpm
libxml2-devel-2.6.26-2.1.25.el5_11.s390.rpm
libxml2-devel-2.6.26-2.1.25.el5_11.s390x.rpm
libxml2-python-2.6.26-2.1.25.el5_11.s390x.rpm

x86_64:
libxml2-2.6.26-2.1.25.el5_11.i386.rpm
libxml2-2.6.26-2.1.25.el5_11.x86_64.rpm
libxml2-debuginfo-2.6.26-2.1.25.el5_11.i386.rpm
libxml2-debuginfo-2.6.26-2.1.25.el5_11.x86_64.rpm
libxml2-devel-2.6.26-2.1.25.el5_11.i386.rpm
libxml2-devel-2.6.26-2.1.25.el5_11.x86_64.rpm
libxml2-python-2.6.26-2.1.25.el5_11.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2014-3660
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2014 Red Hat, Inc.
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