Ghostscript: Buffer overflow

Security Team  Contact Address

Updated March 08, 2008

1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200803-14 / ghostscript
Release Date March 08, 2008
Latest Revision March 08, 2008: 01
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
app-text/ghostscript-esp < 8.15.4-r1 >= 8.15.4-r1 All supported architectures
app-text/ghostscript-gpl < 8.61-r3 >= 8.61-r3 All supported architectures
app-text/ghostscript-gnu < 8.60.0-r2 >= 8.60.0-r2 All supported architectures

Related bugreports: #208999

Synopsis

A stack-based buffer overflow has been discovered in Ghostscript, allowing arbitrary code execution.

2.  Impact Information

Background

Ghostscript is a suite of software based on an interpreter for PostScript and PDF.

Description

Chris Evans (Google Security) discovered a stack-based buffer overflow within the zseticcspace() function in the file zicc.c when processing a PostScript file containing a long "Range" array in a .seticcscpate operator.

Impact

A remote attacker could exploit this vulnerability by enticing a user to open a specially crafted PostScript file, which could possibly lead to the execution of arbitrary code or a Denial of Service.

3.  Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All Ghostscript ESP users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-text/ghostscript-esp-8.15.4-r1"

All Ghostscript GPL users should upgrade to the latest version:

Code Listing 3.2: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-text/ghostscript-gpl-8.61-r3"

All Ghostscript GNU users should upgrade to the latest version:

Code Listing 3.3: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-text/ghostscript-gnu-8.60.0-r2"

4.  References