Ubuntu 10.04 LTS / 12.04 LTS / 14.04 LTS / 14.10 : libxfont vulnerabilities (USN-2536-1)

High Nessus Plugin ID 81951


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


Ilja van Sprundel, Alan Coopersmith, and William Robinet discovered that libXfont incorrectly handled malformed bdf fonts. A local attacker could use this issue to cause libXfont to crash, or possibly execute arbitrary code in order to gain privileges.

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: 81951

File Name: ubuntu_USN-2536-1.nasl

Version: $Revision: 1.8 $

Type: local

Agent: unix

Published: 2015/03/19

Modified: 2016/05/24

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 8.5

Temporal Score: 6.3

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

Temporal Vector: CVSS2#E:U/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:14.04, cpe:/o:canonical:ubuntu_linux:14.10

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

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2015/03/18

Reference Information

CVE: CVE-2015-1802, CVE-2015-1803, CVE-2015-1804

BID: 73277

OSVDB: 119641, 119642, 119643

USN: 2536-1