CentOS 4 : xorg-x11 (CESA-2011:1155)
high Nessus Plugin ID 55840
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Synopsis
The remote CentOS host is missing one or more security updates.Description
Updated xorg-x11 packages that fix one security issue are now available for Red Hat Enterprise Linux 4.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 in the References section.
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. (CVE-2011-2895)
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.
Solution
Update the affected xorg-x11 packages.See Also
Plugin Details
Severity: High
ID: 55840
File Name: centos_RHSA-2011-1155.nasl
Version: 1.13
Type: local
Agent: unix
Family: CentOS Local Security Checks
Published: 8/15/2011
Updated: 1/4/2021
Dependencies: ssh_get_info.nasl
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: High
Base Score: 9.3
Temporal Score: 6.9
Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
Temporal Vector: E:U/RL:OF/RC:C
Vulnerability Information
CPE: p-cpe:/a:centos:centos:xorg-x11, p-cpe:/a:centos:centos:xorg-x11-Mesa-libGL, p-cpe:/a:centos:centos:xorg-x11-Mesa-libGLU, p-cpe:/a:centos:centos:xorg-x11-Xdmx, p-cpe:/a:centos:centos:xorg-x11-Xnest, p-cpe:/a:centos:centos:xorg-x11-Xvfb, p-cpe:/a:centos:centos:xorg-x11-deprecated-libs, p-cpe:/a:centos:centos:xorg-x11-deprecated-libs-devel, p-cpe:/a:centos:centos:xorg-x11-devel, p-cpe:/a:centos:centos:xorg-x11-doc, p-cpe:/a:centos:centos:xorg-x11-font-utils, p-cpe:/a:centos:centos:xorg-x11-libs, p-cpe:/a:centos:centos:xorg-x11-sdk, p-cpe:/a:centos:centos:xorg-x11-tools, p-cpe:/a:centos:centos:xorg-x11-twm, p-cpe:/a:centos:centos:xorg-x11-xauth, p-cpe:/a:centos:centos:xorg-x11-xdm, p-cpe:/a:centos:centos:xorg-x11-xfs, cpe:/o:centos:centos:4
Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 8/14/2011
Vulnerability Publication Date: 8/19/2011
Reference Information
CVE: CVE-2011-2895
BID: 49124
RHSA: 2011:1155