[ GLSA 200610-07 ] Python: Buffer Overflow

[Raphael Marichez <falco () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200610-07
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Python: Buffer Overflow
      Date: October 17, 2006
      Bugs: #149065
        ID: 200610-07

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Synopsis
========

A buffer overflow in Python's "repr()" function can be exploited to
cause a Denial of Service and potentially allows the execution of
arbitrary code.

Background
==========

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

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

    -------------------------------------------------------------------
     Package          /  Vulnerable  /                      Unaffected
    -------------------------------------------------------------------
  1  dev-lang/python     < 2.4.3-r4                        >= 2.4.3-r4
                                                          *>= 2.3.5-r3

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

Benjamin C. Wiley Sittler discovered a buffer overflow in Python's
"repr()" function when handling UTF-32/UCS-4 encoded strings.

Impact
======

If a Python application processes attacker-supplied data with the
"repr()" function, this could potentially lead to the execution of
arbitrary code with the privileges of the affected application or a
Denial of Service.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Python users should update to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-lang/2.4.3-r4"

References
==========

  [ 1 ] CVE-2006-4980
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4980

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

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

  http://security.gentoo.org/glsa/glsa-200610-07.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 () gentoo org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2006 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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