Amazon Linux AMI : ghostscript (ALAS-2012-42)

high Nessus Plugin ID 69649

Synopsis

The remote Amazon Linux AMI host is missing a security update.

Description

An integer overflow flaw was found in Ghostscript's TrueType bytecode interpreter. An attacker could create a specially crafted PostScript or PDF file that, when interpreted, could cause Ghostscript to crash or, potentially, execute arbitrary code. (CVE-2009-3743)

It was found that Ghostscript always tried to read Ghostscript system initialization files from the current working directory before checking other directories, even if a search path that did not contain the current working directory was specified with the '-I' option, or the '-P-' option was used (to prevent the current working directory being searched first). If a user ran Ghostscript in an attacker-controlled directory containing a system initialization file, it could cause Ghostscript to execute arbitrary PostScript code.
(CVE-2010-2055)

Ghostscript included the current working directory in its library search path by default. If a user ran Ghostscript without the '-P-' option in an attacker-controlled directory containing a specially crafted PostScript library file, it could cause Ghostscript to execute arbitrary PostScript code. With this update, Ghostscript no longer searches the current working directory for library files by default.
(CVE-2010-4820)

Note: The fix for CVE-2010-4820 could possibly break existing configurations. To use the previous, vulnerable behavior, run Ghostscript with the '-P' option (to always search the current working directory first).

A flaw was found in the way Ghostscript interpreted PostScript Type 1 and PostScript Type 2 font files. An attacker could create a specially crafted PostScript Type 1 or PostScript Type 2 font file that, when interpreted, could cause Ghostscript to crash or, potentially, execute arbitrary code. (CVE-2010-4054)

Solution

Run 'yum update ghostscript' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2012-42.html

Plugin Details

Severity: High

ID: 69649

File Name: ala_ALAS-2012-42.nasl

Version: 1.6

Type: local

Agent: unix

Published: 9/4/2013

Updated: 4/18/2018

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, 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:amazon:linux:ghostscript-devel, p-cpe:/a:amazon:linux:ghostscript-doc, p-cpe:/a:amazon:linux:ghostscript, p-cpe:/a:amazon:linux:ghostscript-debuginfo, cpe:/o:amazon:linux

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

Patch Publication Date: 2/8/2012

Reference Information

CVE: CVE-2009-3743, CVE-2010-2055, CVE-2010-4054, CVE-2010-4820

ALAS: 2012-42

RHSA: 2012:0095