Ubuntu 8.04 LTS / 9.10 / 10.04 LTS / 10.10 : x11-xserver-utils vulnerability (USN-1107-1)

High Nessus Plugin ID 53321


The remote Ubuntu host is missing a security-related patch.


Sebastian Krahmer discovered that the xrdb utility incorrectly filtered crafted hostnames. An attacker could use this flaw with a malicious DHCP server or with a remote xdmcp login and execute arbitrary code, resulting in root privilege escalation.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the affected x11-xserver-utils package.

Plugin Details

Severity: High

ID: 53321

File Name: ubuntu_USN-1107-1.nasl

Version: $Revision: 1.9 $

Type: local

Agent: unix

Published: 2011/04/07

Modified: 2017/04/15

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 9.3

Temporal Score: 8.1

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:x11-xserver-utils, cpe:/o:canonical:ubuntu_linux:10.04:-:lts, cpe:/o:canonical:ubuntu_linux:10.10, cpe:/o:canonical:ubuntu_linux:8.04:-:lts, cpe:/o:canonical:ubuntu_linux:9.10

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2011/04/06

Reference Information

CVE: CVE-2011-0465

BID: 47189

USN: 1107-1

IAVA: 2017-A-0098