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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

http://www.nessus.org/u?99a5920a

http://www.nessus.org/u?17d63115

Plugin Details

Severity: High

ID: 55840

File Name: centos_RHSA-2011-1155.nasl

Version: 1.13

Type: local

Agent: unix

Published: 8/15/2011

Updated: 1/4/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 6.9

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

Vulnerability Information

CPE: p-cpe:/a:centos:centos:xorg-x11-xnest, p-cpe:/a:centos:centos:xorg-x11-deprecated-libs, cpe:/o:centos:centos:4, p-cpe:/a:centos:centos:xorg-x11-xdmx, p-cpe:/a:centos:centos:xorg-x11-doc, p-cpe:/a:centos:centos:xorg-x11-libs, p-cpe:/a:centos:centos:xorg-x11-sdk, p-cpe:/a:centos:centos:xorg-x11-deprecated-libs-devel, p-cpe:/a:centos:centos:xorg-x11-font-utils, p-cpe:/a:centos:centos:xorg-x11-devel, p-cpe:/a:centos:centos:xorg-x11, p-cpe:/a:centos:centos:xorg-x11-twm, p-cpe:/a:centos:centos:xorg-x11-mesa-libgl, p-cpe:/a:centos:centos:xorg-x11-xvfb, p-cpe:/a:centos:centos:xorg-x11-xdm, p-cpe:/a:centos:centos:xorg-x11-xauth, p-cpe:/a:centos:centos:xorg-x11-tools, p-cpe:/a:centos:centos:xorg-x11-xfs, p-cpe:/a:centos:centos:xorg-x11-mesa-libglu

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