Issued:

2009-08-10

Updated:

2009-08-10

RHSA-2009:1206 - Moderate: libxml and libxml2 security update

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 This content is not included.http://kbase.redhat.com/faq/docs/DOC-11259

Affected Products

Updated Packages

• libxml2-python-2.6.16-12.7.ia64.rpm
• libxml2-2.6.16-12.7.ia64.rpm
• libxml2-2.6.16-12.7.s390x.rpm
• libxml2-devel-2.6.26-2.1.2.8.ppc.rpm
• libxml2-2.6.26-2.1.2.8.ppc64.rpm
• libxml2-python-2.6.26-2.1.2.8.x86_64.rpm
• libxml2-python-2.6.16-12.7.i386.rpm
• libxml2-devel-2.6.16-12.7.ppc.rpm
• libxml2-devel-2.6.16-12.7.s390.rpm
• libxml2-2.6.16-12.7.x86_64.rpm
• libxml2-devel-2.6.26-2.1.2.8.ppc64.rpm
• libxml2-devel-2.6.26-2.1.2.8.ia64.rpm
• libxml2-2.6.26-2.1.2.8.ppc.rpm
• libxml2-devel-2.6.16-12.7.i386.rpm
• libxml2-devel-2.6.16-12.7.x86_64.rpm
• libxml2-2.6.16-12.7.ppc.rpm
• libxml2-python-2.6.26-2.1.2.8.ia64.rpm
• libxml2-2.6.16-12.7.src.rpm
• libxml2-devel-2.6.26-2.1.2.8.s390.rpm
• libxml2-devel-2.6.26-2.1.2.8.i386.rpm
• libxml2-2.6.26-2.1.2.8.ia64.rpm
• libxml2-python-2.6.26-2.1.2.8.s390x.rpm
• libxml2-python-2.6.16-12.7.s390x.rpm
• libxml2-2.6.26-2.1.2.8.src.rpm
• libxml2-python-2.6.26-2.1.2.8.i386.rpm
• libxml2-2.6.26-2.1.2.8.s390x.rpm
• libxml2-python-2.6.16-12.7.x86_64.rpm
• libxml2-python-2.6.26-2.1.2.8.ppc.rpm
• libxml2-2.6.16-12.7.i386.rpm
• libxml2-devel-2.6.26-2.1.2.8.s390x.rpm
• libxml2-devel-2.6.26-2.1.2.8.x86_64.rpm
• libxml2-2.6.26-2.1.2.8.i386.rpm
• libxml2-2.6.16-12.7.ppc64.rpm
• libxml2-devel-2.6.16-12.7.ia64.rpm
• libxml2-python-2.6.16-12.7.ppc.rpm
• libxml2-2.6.16-12.7.s390.rpm
• libxml2-2.6.26-2.1.2.8.x86_64.rpm
• libxml2-2.6.26-2.1.2.8.s390.rpm
• libxml2-python-2.6.16-12.7.s390.rpm
• libxml2-devel-2.6.16-12.7.s390x.rpm

Fixes

• This content is not included.BZ - 515195
• This content is not included.BZ - 515205

CVEs

• CVE-2009-2416
• CVE-2009-2414

References

• http://www.redhat.com/security/updates/classification/#moderate

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.