bugtraq - [ GLSA 200802-10 ] Python: PCRE Integer overflow

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Date: Sat, 23 Feb 2008 20:04:03 +0100
From: Robert Buchholz <rbu@...too.org>
To: gentoo-announce@...too.org
Cc: bugtraq@...urityfocus.com, full-disclosure@...ts.grok.org.uk,
	security-alerts@...uxsecurity.com
Subject: [ GLSA 200802-10 ] Python: PCRE Integer overflow

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Gentoo Linux Security Advisory                           GLSA 200802-10
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Python: PCRE Integer overflow
      Date: February 23, 2008
      Bugs: #198373
        ID: 200802-10

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Synopsis
========

A vulnerability within Python's copy of PCRE might lead to the
execution of arbitrary code.

Background
==========

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

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

    -------------------------------------------------------------------
     Package          /  Vulnerable  /                      Unaffected
    -------------------------------------------------------------------
  1  dev-lang/python     < 2.3.6-r4                        >= 2.3.6-r4

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

Python 2.3 includes a copy of PCRE which is vulnerable to an integer
overflow vulnerability, leading to a buffer overflow.

Impact
======

An attacker could exploit the vulnerability by tricking a vulnerable
Python application to compile a regular expressions, which could
possibly lead to the execution of arbitrary code, a Denial of Service
or the disclosure of sensitive information.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Python 2.3 users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-lang/python-2.3.6-r4"

References
==========

  [ 1 ] CVE-2006-7228
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-7228
  [ 2 ] GLSA 200711-30
        http://www.gentoo.org/security/en/glsa/glsa-200711-30.xml

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

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

  http://security.gentoo.org/glsa/glsa-200802-10.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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