RHEL 4 : xorg-x11 (RHSA-2011:0432)

critical Nessus Plugin ID 53370

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Synopsis

The remote Red Hat host is missing a security update for xorg-x11.

Description

The remote Redhat Enterprise Linux 4 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2011:0432 advisory.

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.

A flaw was found in the X.Org X server resource database utility, xrdb.
Certain variables were not properly sanitized during the launch of a user's graphical session, which could possibly allow a remote attacker to execute arbitrary code with root privileges, if they were able to make the display manager execute xrdb with a specially-crafted X client hostname. For example, by configuring the hostname on the target system via a crafted DHCP reply, or by using the X Display Manager Control Protocol (XDMCP) to connect to that system from a host that has a special DNS name.
(CVE-2011-0465)

Red Hat would like to thank Matthieu Herrb for reporting this issue.
Upstream acknowledges Sebastian Krahmer of the SuSE Security Team as the original reporter.

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 this update to take effect.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL xorg-x11 package based on the guidance in RHSA-2011:0432.

Plugin Details

Severity: Critical

ID: 53370

File Name: redhat-RHSA-2011-0432.nasl

Version: 1.26

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 4/12/2011

Updated: 11/4/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

Vendor

Vendor Severity: Moderate

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

CVSS Score Source: CVE-2011-0465

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

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

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 4/11/2011

Vulnerability Publication Date: 4/8/2011

Reference Information

CVE: CVE-2011-0465

BID: 47189

IAVA: 2017-A-0098

RHSA: 2011:0432

Detections

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