GLSA-200806-07 : X.Org X server: Multiple vulnerabilities

critical Nessus Plugin ID 33243

Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-200806-07 (X.Org X server: Multiple vulnerabilities)

Regenrecht reported multiple vulnerabilities in various X server extensions via iDefense:
The SProcSecurityGenerateAuthorization() and SProcRecordCreateContext() functions of the RECORD and Security extensions are lacking proper parameter validation (CVE-2008-1377).
An integer overflow is possible in the function ShmPutImage() of the MIT-SHM extension (CVE-2008-1379).
The RENDER extension contains several possible integer overflows in the AllocateGlyph() function (CVE-2008-2360) which could possibly lead to a heap-based buffer overflow. Further possible integer overflows have been found in the ProcRenderCreateCursor() function (CVE-2008-2361) as well as in the SProcRenderCreateLinearGradient(), SProcRenderCreateRadialGradient() and SProcRenderCreateConicalGradient() functions (CVE-2008-2362).
Impact :

Exploitation of these vulnerabilities could possibly lead to the remote execution of arbitrary code with root privileges, if the server is running as root, which is the default. It is also possible to crash the server by making use of these vulnerabilities.
Workaround :

It is possible to avoid these vulnerabilities by disabling the affected server extensions. Therefore edit the configuration file (/etc/X11/xorg.conf) to contain the following in the appropriate places:
Section 'Extensions' Option 'MIT-SHM' 'disable' Option 'RENDER' 'disable' Option 'SECURITY' 'disable' EndSection Section 'Module' Disable 'record' EndSection

Solution

All X.org X Server users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=x11-base/xorg-server-1.3.0.0-r6'

Plugin Details

Severity: Critical

ID: 33243

File Name: gentoo_GLSA-200806-07.nasl

Version: 1.15

Type: local

Family: Gentoo Local Security Checks

Published: 6/24/2008

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:xorg-server, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Ease: No known exploits are available

Patch Publication Date: 6/19/2008

Reference Information

CVE: CVE-2008-1377, CVE-2008-1379, CVE-2008-2360, CVE-2008-2361, CVE-2008-2362

CWE: 189

GLSA: 200806-07

Detections

Analytics