Issued:

2015-12-07

Updated:

2015-12-07

RHSA-2015:2550 - Moderate: libxml2 security update

Synopsis

Moderate: libxml2 security update

Type/Severity

Security Advisory Moderate

Topic

Updated libxml2 packages that fix multiple security issues are now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

Description

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

Several denial of service flaws were found in libxml2, a library providing support for reading, modifying, and writing XML and HTML files. A remote attacker could provide a specially crafted XML or HTML file that, when processed by an application using libxml2, would cause that application to use an excessive amount of CPU, leak potentially sensitive information, or in certain cases crash the application. (CVE-2015-1819, CVE-2015-5312, CVE-2015-7497, CVE-2015-7498, CVE-2015-7499, CVE-2015-7500 CVE-2015-7941, CVE-2015-7942, CVE-2015-8241, CVE-2015-8242, CVE-2015-8317, BZ#1213957, BZ#1281955)

Red Hat would like to thank the GNOME project for reporting CVE-2015-7497, CVE-2015-7498, CVE-2015-7499, CVE-2015-7500, CVE-2015-8241, CVE-2015-8242, and CVE-2015-8317. Upstream acknowledges Kostya Serebryany of Google as the original reporter of CVE-2015-7497, CVE-2015-7498, CVE-2015-7499, and CVE-2015-7500; Hugh Davenport as the original reporter of CVE-2015-8241 and CVE-2015-8242; and Hanno Boeck as the original reporter of CVE-2015-8317. The CVE-2015-1819 issue was discovered by Florian Weimer of Red Hat Product Security.

All libxml2 users are advised to upgrade to these updated packages, which contain a backported patch to correct these issues. 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.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

Updated Packages

• libxml2-debuginfo-2.9.1-6.el7_2.2.x86_64.rpm
• libxml2-static-2.9.1-6.el7_2.2.i686.rpm
• libxml2-static-2.9.1-6.el7_2.2.ppc64.rpm
• libxml2-debuginfo-2.9.1-6.el7_2.2.ppc64.rpm
• libxml2-debuginfo-2.9.1-6.el7_2.2.s390.rpm
• libxml2-devel-2.9.1-6.el7_2.2.s390x.rpm
• libxml2-python-2.9.1-6.el7_2.2.ppc64.rpm
• libxml2-debuginfo-2.9.1-6.el7_2.2.ppc.rpm
• libxml2-static-2.9.1-6.el7_2.2.ppc.rpm
• libxml2-python-2.9.1-6.el7_2.2.s390x.rpm
• libxml2-2.9.1-6.el7_2.2.ppc64.rpm
• libxml2-2.9.1-6.el7_2.2.x86_64.rpm
• libxml2-debuginfo-2.9.1-6.el7_2.2.ppc64le.rpm
• libxml2-devel-2.9.1-6.el7_2.2.s390.rpm
• libxml2-2.9.1-6.el7_2.2.i686.rpm
• libxml2-2.9.1-6.el7_2.2.s390.rpm
• libxml2-static-2.9.1-6.el7_2.2.ppc64le.rpm
• libxml2-devel-2.9.1-6.el7_2.2.ppc64le.rpm
• libxml2-2.9.1-6.el7_2.2.ppc64le.rpm
• libxml2-devel-2.9.1-6.el7_2.2.ppc64.rpm
• libxml2-python-2.9.1-6.el7_2.2.x86_64.rpm
• libxml2-devel-2.9.1-6.el7_2.2.i686.rpm
• libxml2-devel-2.9.1-6.el7_2.2.x86_64.rpm
• libxml2-static-2.9.1-6.el7_2.2.s390x.rpm
• libxml2-devel-2.9.1-6.el7_2.2.ppc.rpm
• libxml2-python-2.9.1-6.el7_2.2.ppc64le.rpm
• libxml2-2.9.1-6.el7_2.2.ppc.rpm
• libxml2-2.9.1-6.el7_2.2.src.rpm
• libxml2-debuginfo-2.9.1-6.el7_2.2.i686.rpm
• libxml2-static-2.9.1-6.el7_2.2.x86_64.rpm
• libxml2-static-2.9.1-6.el7_2.2.s390.rpm
• libxml2-2.9.1-6.el7_2.2.s390x.rpm
• libxml2-debuginfo-2.9.1-6.el7_2.2.s390x.rpm

Fixes

• This content is not included.BZ - 1211278
• This content is not included.BZ - 1213957
• This content is not included.BZ - 1274222
• This content is not included.BZ - 1276297
• This content is not included.BZ - 1276693
• This content is not included.BZ - 1281862
• This content is not included.BZ - 1281879
• This content is not included.BZ - 1281925
• This content is not included.BZ - 1281930
• This content is not included.BZ - 1281936
• This content is not included.BZ - 1281943
• This content is not included.BZ - 1281950
• This content is not included.BZ - 1281955

CVEs

• CVE-2015-1819
• CVE-2015-5312
• CVE-2015-7497
• CVE-2015-7498
• CVE-2015-7499
• CVE-2015-7500
• CVE-2015-7941
• CVE-2015-7942
• CVE-2015-8241
• CVE-2015-8242
• CVE-2015-8317
• CVE-2015-8710

References

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

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.