RHSA-2013:0897 - Security Advisory

Topic

Updated mesa packages that fix multiple security issues are now available
for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having
important 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

Mesa provides a 3D graphics API that is compatible with Open Graphics
Library (OpenGL). It also provides hardware-accelerated drivers for many
popular graphics chips.

An out-of-bounds access flaw was found in Mesa. If an application using
Mesa exposed the Mesa API to untrusted inputs (Mozilla Firefox does
this), an attacker could cause the application to crash or, potentially,
execute arbitrary code with the privileges of the user running the
application. (CVE-2013-1872)

It was found that Mesa did not correctly validate messages from the X
server. A malicious X server could cause an application using Mesa to crash
or, potentially, execute arbitrary code with the privileges of the user
running the application. (CVE-2013-1993)

All users of Mesa are advised to upgrade to these updated packages, which
contain backported patches to correct these issues. All running
applications linked against Mesa must be restarted for this update to take
effect.

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/knowledge/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.4 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.4 i386
• Red Hat Enterprise Linux Server - AUS 6.4 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 6.4 s390x
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.4 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.4 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.4 i386
• Red Hat Gluster Storage Server for On-premise 2.1 x86_64
• Red Hat Storage for Public Cloud (via RHUI) 2.1 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x

Fixes

• BZ - 923584 - CVE-2013-1872 Mesa: Memory corruption (OOB read/write) on intel drivers
• BZ - 961613 - CVE-2013-1993 Mesa: Multiple integer overflows leading to heap-based bufer overflows

CVEs

• CVE-2013-1993
• CVE-2013-1872

References

• https://access.redhat.com/security/updates/classification/#important