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

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From: koon at gentoo.org (Thierry Carrez)
Subject: [ GLSA 200409-03 ] Python 2.2: Buffer overflow in getaddrinfo()

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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@...too.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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