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

high Nessus Plugin ID 55821

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Synopsis

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

Description

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.

Solution

Update the affected package.

See Also

https://bugzilla.redhat.com/show_bug.cgi?id=725760

http://www.nessus.org/u?1c65b61d

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

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 9.3

Vector: CVSS2#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