[Full-disclosure] [ GLSA 200802-10 ] Python: PCRE Integer overflow

[Robert Buchholz]

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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 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
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