RHSA-2008:0512 - Security Advisory
Important: XFree86 security update
Security Advisory: Important
Updated XFree86 packages that fix several security issues are now available
for Red Hat Enterprise Linux 2.1.
This update has been rated as having important security impact by the Red
Hat Security Response Team.
XFree86 is an implementation of the X Window System, which provides the
core functionality for the Linux graphical desktop.
An input validation flaw was discovered in X.org's Security and Record
extensions. 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-2008-1377)
An integer overflow flaw was found in X.org's Render 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-2008-2360)
An input validation flaw was discovered in X.org's MIT-SHM extension. A
client connected to the X.org server could read arbitrary server memory.
This could result in the sensitive data of other users of the X.org server
being disclosed. (CVE-2008-1379)
Users of XFree86 are advised to upgrade to these updated packages, which
contain backported patches to resolve these issues.
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
- Red Hat Enterprise Linux Server 2 ia64
- Red Hat Enterprise Linux Server 2 i386
- Red Hat Enterprise Linux Workstation 2 ia64
- Red Hat Enterprise Linux Workstation 2 i386
- BZ - 445403 - CVE-2008-1377 X.org Record and Security extensions memory corruption
- BZ - 445414 - CVE-2008-1379 X.org MIT-SHM extension arbitrary memory read
- BZ - 448783 - CVE-2008-2360 X.org Render extension AllocateGlyph() heap buffer overflow
Red Hat Enterprise Linux Server 2
Red Hat Enterprise Linux Workstation 2