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CentOS 5 / 6 : ghostscript (CESA-2012:0095)
high Nessus Plugin ID 57809
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Synopsis
The remote CentOS host is missing one or more security updates.Description
Updated ghostscript packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5 and 6.The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.
Ghostscript is a set of software that provides a PostScript interpreter, a set of C procedures (the Ghostscript library, which implements the graphics capabilities in the PostScript language) and an interpreter for Portable Document Format (PDF) files.
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)
Users of Ghostscript are advised to upgrade to these updated packages, which contain backported patches to correct these issues.
Solution
Update the affected ghostscript packages.See Also
Plugin Details
Severity: High
ID: 57809
File Name: centos_RHSA-2012-0095.nasl
Version: 1.12
Type: local
Agent: unix
Family: CentOS Local Security Checks
Published: 2/3/2012
Updated: 1/4/2021
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: High
Base Score: 9.3
Temporal Score: 8.1
Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2009-3743
Vulnerability Information
CPE: p-cpe:/a:centos:centos:ghostscript-gtk, cpe:/o:centos:centos:6, p-cpe:/a:centos:centos:ghostscript, p-cpe:/a:centos:centos:ghostscript-doc, cpe:/o:centos:centos:5, p-cpe:/a:centos:centos:ghostscript-devel
Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 2/2/2012
Vulnerability Publication Date: 7/22/2010
Reference Information
CVE: CVE-2009-3743, CVE-2010-2055, CVE-2010-4054, CVE-2010-4820
RHSA: 2012:0095