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To: gentoo-announce@g.o
From: Pierre-Yves Rofes <py@g.o>
Subject: [ GLSA 200711-07 ] Python: User-assisted execution of arbitrary code
Date: Wed, 07 Nov 2007 20:45:33 +0100
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Gentoo Linux Security Advisory                           GLSA 200711-07
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Python: User-assisted execution of arbitrary code
      Date: November 07, 2007
      Bugs: #192876
        ID: 200711-07

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Synopsis
========

Multiple integer overflow vulnerabilities have been discovered in
Python, possibly resulting in the execution of arbitrary code or a
Denial of Service.

Background
==========

Python is an interpreted, interactive, object-oriented programming
language.

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

    -------------------------------------------------------------------
     Package          /  Vulnerable  /                      Unaffected
    -------------------------------------------------------------------
  1  dev-lang/python     < 2.4.4-r6                       *>= 2.3.6-r3
                                                           >= 2.4.4-r6

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

Slythers Bro discovered multiple integer overflows in the imageop
module, one of them in the tovideo() method, in various locations in
files imageop.c, rbgimgmodule.c, and also in other files.

Impact
======

A remote attacker could entice a user to process specially crafted
images with an application using the Python imageop module, resulting
in the execution of arbitrary code with the privileges of the user
running the application, or a Denial of Service. Note that this
vulnerability may or may not be exploitable, depending on the
application using the module.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Python 2.3.x users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-lang/python-2.3.6-r3"

All Python 2.4.x users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-lang/python-2.4.4-r6"

References
==========

  [ 1 ] CVE-2007-4965
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4965

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

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

  http://security.gentoo.org/glsa/glsa-200711-07.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@g.o or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2007 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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