full-disclosure - [ GLSA 200804-23 ] CUPS: Integer overflow vulnerability

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Date: Sat, 19 Apr 2008 01:27:19 +0200
From: Matthias Geerdsen <vorlon@...too.org>
To: gentoo-announce@...too.org
Cc: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com,
	security-alerts@...uxsecurity.com
Subject: [ GLSA 200804-23 ] CUPS: Integer overflow
	vulnerability

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Gentoo Linux Security Advisory                           GLSA 200804-23
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                                             http://security.gentoo.org/
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   Severity: High
      Title: CUPS: Integer overflow vulnerability
       Date: April 18, 2008
       Bugs: #217232
         ID: 200804-23

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Synopsis
========

A vulnerability in CUPS might allow for the execution of arbitrary code
or a Denial of Service.

Background
==========

CUPS provides a portable printing layer for UNIX-based operating
systems.

Affected packages
=================

     -------------------------------------------------------------------
      Package         /   Vulnerable   /                     Unaffected
     -------------------------------------------------------------------
   1  net-print/cups      < 1.2.12-r8                      >= 1.2.12-r8

Description
===========

Thomas Pollet reported a possible integer overflow vulnerability in the
PNG image handling in the file filter/image-png.c.

Impact
======

A malicious user might be able to execute arbitrary code with the
privileges of the user running CUPS (usually lp), or cause a Denial of
Service by sending a specially crafted PNG image to the print server.
The vulnerability is exploitable via the network if CUPS is sharing
printers remotely.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All CUPS users should upgrade to the latest version:

     # emerge --sync
     # emerge --ask --oneshot --verbose ">=net-print/cups-1.2.12-r8"

References
==========

   [ 1 ] CVE-2008-1722
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1722

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

   http://security.gentoo.org/glsa/glsa-200804-23.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@...too.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

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