CentOS 6 / 7 : xorg-x11-server (CESA-2014:1983)

Medium Nessus Plugin ID 79879

Synopsis

The remote CentOS host is missing one or more security updates.

Description

Updated xorg-x11-server packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6 and 7.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links 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.

Multiple integer overflow flaws and out-of-bounds write flaws were found in the way the X.Org server calculated memory requirements for certain X11 core protocol and GLX extension requests. A malicious, authenticated client could use either of these flaws to crash the X.Org server or, potentially, execute arbitrary code with root privileges. (CVE-2014-8092, CVE-2014-8093, CVE-2014-8098)

It was found that the X.Org server did not properly handle SUN-DES-1 (Secure RPC) authentication credentials. A malicious, unauthenticated client could use this flaw to crash the X.Org server by submitting a specially crafted authentication request. (CVE-2014-8091)

Multiple out-of-bounds access flaws were found in the way the X.Org server calculated memory requirements for certain requests. A malicious, authenticated client could use either of these flaws to crash the X.Org server, or leak memory contents to the client.
(CVE-2014-8097)

An integer overflow flaw was found in the way the X.Org server calculated memory requirements for certain DRI2 extension requests. A malicious, authenticated client could use this flaw to crash the X.Org server. (CVE-2014-8094)

Multiple out-of-bounds access flaws were found in the way the X.Org server calculated memory requirements for certain requests. A malicious, authenticated client could use either of these flaws to crash the X.Org server. (CVE-2014-8095, CVE-2014-8096, CVE-2014-8099, CVE-2014-8100, CVE-2014-8101, CVE-2014-8102, CVE-2014-8103)

All xorg-x11-server users are advised to upgrade to these updated packages, which contain backported patches to correct these issues.

Solution

Update the affected xorg-x11-server packages.

See Also

http://www.nessus.org/u?bcb4c597

http://www.nessus.org/u?a25d36f1

Plugin Details

Severity: Medium

ID: 79879

File Name: centos_RHSA-2014-1983.nasl

Version: 1.9

Type: local

Agent: unix

Published: 2014/12/15

Updated: 2018/11/10

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 6.5

Temporal Score: 4.8

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:centos:centos:xorg-x11-server-Xdmx, p-cpe:/a:centos:centos:xorg-x11-server-Xephyr, p-cpe:/a:centos:centos:xorg-x11-server-Xnest, p-cpe:/a:centos:centos:xorg-x11-server-Xorg, p-cpe:/a:centos:centos:xorg-x11-server-Xvfb, p-cpe:/a:centos:centos:xorg-x11-server-common, p-cpe:/a:centos:centos:xorg-x11-server-devel, p-cpe:/a:centos:centos:xorg-x11-server-source, cpe:/o:centos:centos:6, cpe:/o:centos:centos:7

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2014/12/11

Reference Information

CVE: CVE-2014-8091, CVE-2014-8092, CVE-2014-8093, CVE-2014-8094, CVE-2014-8095, CVE-2014-8096, CVE-2014-8097, CVE-2014-8098, CVE-2014-8099, CVE-2014-8100, CVE-2014-8101, CVE-2014-8102, CVE-2014-8103

BID: 71595, 71596, 71597, 71598, 71599, 71600, 71601, 71602, 71603, 71604, 71605, 71606, 71608

RHSA: 2014:1983