Red Hat Training

A Red Hat training course is available for Red Hat Enterprise Linux

3.99. xorg-x11-server

Updated xorg-x11-server packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6.
The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link associated with the description below.
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.

Security Fix

CVE-2013-4396
A use-after-free flaw was found in the way the X.Org server handled ImageText requests. A malicious, authorized client could use this flaw to crash the X.Org server or, potentially, execute arbitrary code with root privileges.
Red Hat would like to thank the X.Org security team for reporting this issue. Upstream acknowledges Pedro Ribeiro as the original reporter.
All xorg-x11-server users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue.
Updated xorg-x11-server packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6.
The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link associated with the description below.
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.

Security Fix

CVE-2013-6424
An integer overflow, which led to a heap-based buffer overflow, was found in the way X.Org server handled trapezoids. A malicious, authorized client could use this flaw to crash the X.Org server or, potentially, execute arbitrary code with root privileges.
All xorg-x11-server users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue.
Updated xorg-x11-server packages that fix one bug are now available for Red Hat Enterprise Linux 5.
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.

Bug Fix

BZ#1080497
Due to a logic error in timestamp comparison, resolution changes using the xrandr utility or other RANDR clients failed under various conditions, including long uptime or wall time going backwards. A patch has been implemented to fix this bug. As a result, changing resolution now works correctly when the date is out of synchronization with the original time.
Users of xorg-x11-server are advised to upgrade to these updated packages, which fix this bug.