Synopsis
Moderate: libxml and libxml2 security update
Type/Severity
Security Advisory: Moderate
Topic
Updated libxml and libxml2 packages that fix multiple security issues are
now available for Red Hat Enterprise Linux 3, 4, and 5.
This update has been rated as having moderate security impact by the Red
Hat Security Response Team.
Description
libxml is a library for parsing and manipulating XML files. A Document Type
Definition (DTD) defines the legal syntax (and also which elements can be
used) for certain types of files, such as XML files.
A stack overflow flaw was found in the way libxml processes the root XML
document element definition in a DTD. A remote attacker could provide a
specially-crafted XML file, which once opened by a local, unsuspecting
user, would lead to denial of service (application crash). (CVE-2009-2414)
Multiple use-after-free flaws were found in the way libxml parses the
Notation and Enumeration attribute types. A remote attacker could provide
a specially-crafted XML file, which once opened by a local, unsuspecting
user, would lead to denial of service (application crash). (CVE-2009-2416)
Users should upgrade to these updated packages, which contain backported
patches to resolve these issues. For Red Hat Enterprise Linux 3, they
contain backported patches for the libxml and libxml2 packages. For Red Hat
Enterprise Linux 4 and 5, they contain backported patches for the libxml2
packages. The desktop must be restarted (log out, then log back in) for
this update to take effect.
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/docs/DOC-11259
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 - Extended Update Support 5.3 x86_64
-
Red Hat Enterprise Linux Server - Extended Update Support 5.3 ia64
-
Red Hat Enterprise Linux Server - Extended Update Support 5.3 i386
-
Red Hat Enterprise Linux Server - Extended Update Support 4.8 x86_64
-
Red Hat Enterprise Linux Server - Extended Update Support 4.8 ia64
-
Red Hat Enterprise Linux Server - Extended Update Support 4.8 i386
-
Red Hat Enterprise Linux Server - AUS 5.3 x86_64
-
Red Hat Enterprise Linux Server - AUS 5.3 ia64
-
Red Hat Enterprise Linux Server - AUS 5.3 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 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 5.3 s390x
-
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.8 s390x
-
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.8 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 5.3 ppc
-
Red Hat Enterprise Linux for Power, big endian - Extended Update Support 4.8 ppc
-
Red Hat Enterprise Linux Server from RHUI 5 x86_64
-
Red Hat Enterprise Linux Server from RHUI 5 i386
Fixes
- BZ - 515195 - CVE-2009-2414 libxml, libxml2, mingw32-libxml2: Stack overflow by parsing root XML element DTD definition
- BZ - 515205 - CVE-2009-2416 libxml, libxml2, mingw32-libxml2: Pointer use-after-free flaws by parsing Notation and Enumeration attribute types
CVEs
References
Vulmon