Synopsis
Important: libxml2 security update
Type/Severity
Security Advisory: Important
Topic
Updated libxml2 packages that fix security issues are now available for
Red Hat Enterprise Linux 2.1, 3, 4, and 5.
This update has been rated as having important security impact by the Red
Hat Security Response Team.
Description
libxml2 is a library for parsing and manipulating XML files. It includes
support for reading, modifying, and writing XML and HTML files.
An integer overflow flaw causing a heap-based buffer overflow was found in
the libxml2 XML parser. If an application linked against libxml2 processed
untrusted, malformed XML content, it could cause the application to crash
or, possibly, execute arbitrary code. (CVE-2008-4226)
A denial of service flaw was discovered in the libxml2 XML parser. If an
application linked against libxml2 processed untrusted, malformed XML
content, it could cause the application to enter an infinite loop.
(CVE-2008-4225)
Red Hat would like to thank Drew Yao of the Apple Product Security team for
reporting these issues.
Users of libxml2 are advised to upgrade to these updated packages, which
contain backported patches to correct these issues.
Solution
Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.
This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188
Affected Products
-
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 4 x86_64
-
Red Hat Enterprise Linux Server 4 ia64
-
Red Hat Enterprise Linux Server 4 i386
-
Red Hat Enterprise Linux Server 3 x86_64
-
Red Hat Enterprise Linux Server 3 ia64
-
Red Hat Enterprise Linux Server 3 i386
-
Red Hat Enterprise Linux Server 2 ia64
-
Red Hat Enterprise Linux Server 2 i386
-
Red Hat Enterprise Linux Server - Extended Update Support 5.2 x86_64
-
Red Hat Enterprise Linux Server - Extended Update Support 5.2 ia64
-
Red Hat Enterprise Linux Server - Extended Update Support 5.2 i386
-
Red Hat Enterprise Linux Server - Extended Update Support 4.7 x86_64
-
Red Hat Enterprise Linux Server - Extended Update Support 4.7 ia64
-
Red Hat Enterprise Linux Server - Extended Update Support 4.7 i386
-
Red Hat Enterprise Linux Workstation 5 x86_64
-
Red Hat Enterprise Linux Workstation 5 i386
-
Red Hat Enterprise Linux Workstation 4 x86_64
-
Red Hat Enterprise Linux Workstation 4 ia64
-
Red Hat Enterprise Linux Workstation 4 i386
-
Red Hat Enterprise Linux Workstation 3 x86_64
-
Red Hat Enterprise Linux Workstation 3 ia64
-
Red Hat Enterprise Linux Workstation 3 i386
-
Red Hat Enterprise Linux Workstation 2 ia64
-
Red Hat Enterprise Linux Workstation 2 i386
-
Red Hat Enterprise Linux Desktop 5 x86_64
-
Red Hat Enterprise Linux Desktop 5 i386
-
Red Hat Enterprise Linux Desktop 4 x86_64
-
Red Hat Enterprise Linux Desktop 4 i386
-
Red Hat Enterprise Linux Desktop 3 x86_64
-
Red Hat Enterprise Linux Desktop 3 i386
-
Red Hat Enterprise Linux for IBM z Systems 5 s390x
-
Red Hat Enterprise Linux for IBM z Systems 4 s390x
-
Red Hat Enterprise Linux for IBM z Systems 4 s390
-
Red Hat Enterprise Linux for IBM z Systems 3 s390x
-
Red Hat Enterprise Linux for IBM z Systems 3 s390
-
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 5.2 s390x
-
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.7 s390x
-
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.7 s390
-
Red Hat Enterprise Linux for Power, big endian 5 ppc
-
Red Hat Enterprise Linux for Power, big endian 4 ppc
-
Red Hat Enterprise Linux for Power, big endian 3 ppc
-
Red Hat Enterprise Linux for Power, big endian - Extended Update Support 5.2 ppc
-
Red Hat Enterprise Linux for Power, big endian - Extended Update Support 4.7 ppc
-
Red Hat Enterprise Linux Server from RHUI 5 x86_64
-
Red Hat Enterprise Linux Server from RHUI 5 i386
Fixes
- BZ - 470466 - CVE-2008-4226 libxml2: integer overflow leading to memory corruption in xmlSAX2Characters
- BZ - 470480 - CVE-2008-4225 libxml2: integer overflow leading to infinite loop in xmlBufferResize
CVEs
References
Vulmon