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Test ID:
Category:Red Hat Local Security Checks
Title:RedHat Security Advisory RHSA-2011:1155
The remote host is missing updates announced in
advisory RHSA-2011:1155.

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. These xorg-x11 packages also provide the
X.Org libXfont runtime library.

A buffer overflow flaw was found in the way the libXfont library, used by
the X.Org server, handled malformed font files compressed using UNIX
compress. A malicious, local user could exploit this issue to potentially
execute arbitrary code with the privileges of the X.Org server.

Users of xorg-x11 should upgrade to these updated packages, which contain
a backported patch to resolve this issue. All running X.Org server
instances must be restarted for the update to take effect.

Please note that this update is available via
Red Hat Network. To use Red Hat Network, launch the Red
Hat Update Agent with the following command: up2date

Risk factor : Critical

CVSS Score:

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2011-2895
BugTraq ID: 49124
Debian Security Information: DSA-2293 (Google Search)
NETBSD Security Advisory: NetBSD-SA2011-007
SuSE Security Announcement: SUSE-SU-2011:1035 (Google Search)
SuSE Security Announcement: openSUSE-SU-2011:1299 (Google Search)
XForce ISS Database: xorg-lzw-bo(69141)
CopyrightCopyright (c) 2011 E-Soft Inc.

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