[gentoo-announce] [ GLSA 200812-02 ] enscript: User-assisted execution of arbitrary code

[news 28]

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Gentoo Linux Security Advisory GLSA 200812-02

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http://security.gentoo.org/

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Severity: Normal

Title: enscript: User-assisted execution of arbitrary code

Date: December 02, 2008

Bugs: #243228

ID: 200812-02

 

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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

-------------------------------------------------------------------

1 app-text/enscript < 1.6.4-r4 >= 1.6.4-r4

 

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

==========

 

[ 1 ] CVE-2008-3863

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3863

[ 2 ] CVE-2008-4306

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4306

 

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 ( -at -) gentoo.org or alternatively, you may file a bug at

http://bugs.gentoo.org.

 

License

=======

 

Copyright 2008 Gentoo Foundation, Inc; referenced text

belongs to its owner(s).

 

The contents of this document are licensed under the

Creative Commons - Attribution / Share Alike license.

 

http://creativecommons.org/licenses/by-sa/2.5