GLSA 200812-02: enscript: User-assisted execution of arbitrary code

http://security.gentoo.org/

Severity:	normal
Title:	enscript: User-assisted execution of arbitrary code
Date:	12/02/2008
Bugs:	#243228
ID:	200812-02

Synopsis

Two buffer overflows in enscript might lead to the execution of arbitrary code.

Background

enscript is a powerful ASCII to PostScript file converter.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
app-text/enscript	< 1.6.4-r4	>= 1.6.4-r4	All supported architectures

Description

Two stack-based buffer overflows in the read_special_escape() function in src/psgen.c have been reported. Ulf Harnhammar of Secunia Research discovered a vulnerability related to the "setfilename" command (CVE-2008-3863), and Kees Cook of Ubuntu discovered a vulnerability related to the "font" escape sequence (CVE-2008-4306).

Impact

An attacker could entice a user or automated system to process specially crafted input with the special escapes processing enabled using the "-e" option, possibly resulting in the execution of arbitrary code.

Workaround

There is no known workaround at this time.

Resolution

All enscript users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-text/enscript-1.6.4-r4"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200812-02.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.