[ GLSA 200409-03 ] Python 2.2: Buffer overflow in getaddrinfo()

[Thierry Carrez <koon () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200409-03
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                                            http://security.gentoo.org/
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  Severity: High
     Title: Python 2.2: Buffer overflow in getaddrinfo()
      Date: September 02, 2004
      Bugs: #62440
        ID: 200409-03

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Synopsis
========

Python 2.2 has a vulnerability in DNS handling when IPV6 is disabled
and a malformed IPV6 address is encountered by getaddrinfo().

Background
==========

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

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

    -------------------------------------------------------------------
     Package          /  Vulnerable  /                      Unaffected
    -------------------------------------------------------------------
  1  dev-lang/python       < 2.2.2                            >= 2.2.2
                                                                 < 2.2

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

If IPV6 is disabled in Python 2.2, getaddrinfo() is not able to handle
IPV6 DNS requests properly and a buffer overflow occurs.

Impact
======

An attacker can execute arbitrary code as the user running python.

Workaround
==========

Users with IPV6 enabled are not affected by this vulnerability.

Resolution
==========

All Python 2.2 users should upgrade to the latest version:

    # emerge sync

    # emerge -pv ">=dev-lang/python-2.2.2"
    # emerge ">=dev-lang/python-2.2.2"

References
==========

  [ 1 ] CVE-2004-0150
        http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0150
  [ 2 ] OSVDB:4172
        http://www.osvdb.org/4172

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

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

  http://security.gentoo.org/glsa/glsa-200409-03.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 2004 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/1.0

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