Mandriva Linux Security Advisory : libxfont (MDVSA-2015:145-1)

high Nessus Plugin ID 82398

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Synopsis

The remote Mandriva Linux host is missing one or more security updates.

Description

Updated libxfont packages fix security vulnerabilities :

Ilja van Sprundel discovered that libXfont incorrectly handled font metadata file parsing. A local attacker could use this issue to cause libXfont to crash, or possibly execute arbitrary code in order to gain privileges (CVE-2014-0209).

Ilja van Sprundel discovered that libXfont incorrectly handled X Font Server replies. A malicious font server could return specially crafted data that could cause libXfont to crash, or possibly execute arbitrary code (CVE-2014-0210, CVE-2014-0211).

The bdf parser reads a count for the number of properties defined in a font from the font file, and allocates arrays with entries for each property based on that count. It never checked to see if that count was negative, or large enough to overflow when multiplied by the size of the structures being allocated, and could thus allocate the wrong buffer size, leading to out of bounds writes (CVE-2015-1802).

If the bdf parser failed to parse the data for the bitmap for any character, it would proceed with an invalid pointer to the bitmap data and later crash when trying to read the bitmap from that pointer (CVE-2015-1803).

The bdf parser read metrics values as 32-bit integers, but stored them into 16-bit integers. Overflows could occur in various operations leading to out-of-bounds memory access (CVE-2015-1804).

Solution

Update the affected packages.

Plugin Details

Severity: High

ID: 82398

File Name: mandriva_MDVSA-2015-145.nasl

Version: 1.7

Type: local

Family: Mandriva Local Security Checks

Published: 3/30/2015

Updated: 1/14/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

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

Vulnerability Information

CPE: p-cpe:/a:mandriva:linux:lib64xfont-devel, p-cpe:/a:mandriva:linux:lib64xfont1, p-cpe:/a:mandriva:linux:lib64xfont1-devel, p-cpe:/a:mandriva:linux:lib64xfont1-static-devel, cpe:/o:mandriva:business_server:1, cpe:/o:mandriva:business_server:2

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/Mandrake/release, Host/Mandrake/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 3/29/2015

Reference Information

CVE: CVE-2014-0209, CVE-2014-0210, CVE-2014-0211, CVE-2015-1802, CVE-2015-1803, CVE-2015-1804

BID: 67382, 73277, 73279, 73280

MDVSA: 2015:145, 2015:145-1

Detections

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