Ubuntu 10.04 LTS / 12.04 LTS / 12.10 / 13.04 / 13.10 : libxfont vulnerability (USN-2078-1)

High Nessus Plugin ID 71855


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


It was discovered that libXfont incorrectly handled certain malformed BDF fonts. An attacker could use a specially crafted font file to cause libXfont to crash, or possibly execute arbitrary code in order to gain privileges. The default compiler options for affected releases should reduce the vulnerability to a denial of service.

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 libxfont1 package.

Plugin Details

Severity: High

ID: 71855

File Name: ubuntu_USN-2078-1.nasl

Version: $Revision: 1.6 $

Type: local

Agent: unix

Published: 2014/01/08

Modified: 2016/05/25

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 9.3

Temporal Score: 7.3

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libxfont1, cpe:/o:canonical:ubuntu_linux:10.04:-:lts, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, cpe:/o:canonical:ubuntu_linux:12.10, cpe:/o:canonical:ubuntu_linux:13.04, cpe:/o:canonical:ubuntu_linux:13.10

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: 2014/01/07

Exploitable With

Core Impact

Reference Information

CVE: CVE-2013-6462

OSVDB: 101842

USN: 2078-1