GLSA 200803-14: Ghostscript: Buffer overflow

http://security.gentoo.org/

Severity:	normal
Title:	Ghostscript: Buffer overflow
Date:	03/08/2008
Bugs:	#208999
ID:	200803-14

Synopsis

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

Background

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

Affected packages

Package	Vulnerable	Unaffected	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

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.

Workaround

There is no known workaround at this time.

Resolution

All Ghostscript ESP users should upgrade to the latest version:

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

All Ghostscript GPL users should upgrade to the latest version:


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

All Ghostscript GNU users should upgrade to the latest version:


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

References

CVE-2008-0411

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200803-14.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.