RHSA-2007:0127 - Security Advisory

Topic

Updated X.org X11 server packages that fix a security issue are now
available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the Red
Hat Security Response Team.

Description

X.org is an open source implementation of the X Window System. It provides
the basic low-level functionality that full-fledged graphical user
interfaces are designed upon.

iDefense reported an integer overflow flaw in the X.org X11 server XC-MISC
extension. A malicious authorized client could exploit this issue to cause
a denial of service (crash) or potentially execute arbitrary code with root
privileges on the X.org server. (CVE-2007-1003)

Users of the X.org X11 server should upgrade to these updated packages,
which contain a backported patch and is not vulnerable to this issue.

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 Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 233001 - CVE-2007-1003 xserver XC-MISC integer overflow

CVEs

• CVE-2007-1003

References

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