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[ GLSA 200401-03 ] Apache mod_python Denial of Service vulnerability

daemon@ATHENA.MIT.EDU (Tim Yamin)
Tue Jan 27 13:20:59 2004

Message-ID: <401694BD.4080601@gentoo.org>
Date: Tue, 27 Jan 2004 16:41:33 +0000
From: Tim Yamin <plasmaroo@gentoo.org>
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Gentoo Linux Security Advisory                           GLSA 200401-03
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~                                            http://security.gentoo.org
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~  Severity: Low
~     Title: Apache mod_python Denial of Service vulnerability
~      Date: January 27, 2004
~      Bugs: #39154
~        ID: 200401-03

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Synopsis
========

Apache's mod_python module could crash the httpd process if a specific,
malformed query string was sent.

Background
==========

Mod_python is an Apache module that embeds the Python interpreter within
the server allowing Python-based web-applications to be created.

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

The Apache Foundation has reported that mod_python may be prone to
Denial of Service attacks when handling a malformed query. Mod_python
2.7.9 was released to fix the vulnerability, however, because the
vulnerability has not been fully fixed, version 2.7.10 has been released.

Users of mod_python 3.0.4 are not affected by this vulnerability.

Impact
======

Although there are no known public exploits known for this exploit,
users are recommended to upgrade mod_python to ensure the security of
their infrastructure.

Workaround
==========

Mod_python 2.7.10 has been released [ the release announcement is at
http://www.modpython.org/pipermail/mod_python/2004-January/014879.html ]
to solve this issue; there is no immediate workaround.

Resolution
==========

All users using mod_python 2.7.9 or below are recommended to update
their mod_python installation:

~    $> emerge sync
~    $> emerge -pv ">=dev-python/mod_python-2.7.10"
~    $> emerge ">=dev-python/mod_python-2.7.10"
~    $> /etc/init.d/apache restart

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.
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