FreeBSD : libXfont -- possible local privilege escalation (304409c3-c3ef-11e0-8aa5-485d60cb5385)

high Nessus Plugin ID 55821


The remote FreeBSD host is missing a security-related update.


Tomas Hoger reports :

The compress/ LZW decompress implentation does not correctly handle compressed streams that contain code words that were not yet added to the decompression table. This may lead to arbitrary memory corruption.
Successfull exploitation may possible lead to a local privilege escalation.


Update the affected package.

See Also

Plugin Details

Severity: High

ID: 55821

File Name: freebsd_pkg_304409c3c3ef11e08aa5485d60cb5385.nasl

Version: 1.9

Type: local

Published: 8/12/2011

Updated: 1/6/2021

Risk Information


Risk Factor: Medium

Score: 5.9


Risk Factor: High

Base Score: 9.3

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:libXfont, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 8/11/2011

Vulnerability Publication Date: 7/26/2011

Reference Information

CVE: CVE-2011-2895