GLSA 200601-05 mod_auth_pgsql: Multiple format string vulnerabilities
Posted on: 01/10/2006 10:22 PM

A new security update has been released for Gentoo Linux - mod_auth_pgsql: Multiple format string vulnerabilities. Here the announcement:

Gentoo Linux Security Advisory GLSA 200601-05
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http://security.gentoo.org/
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Severity: High
Title: mod_auth_pgsql: Multiple format string vulnerabilities
Date: January 10, 2006
Bugs: #118096
ID: 200601-05

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Synopsis
========

Format string vulnerabilities in mod_auth_pgsql may lead to the
execution of arbitrary code.

Background
==========

mod_auth_pgsql is an Apache2 module that allows user authentication
against a PostgreSQL database.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-www/mod_auth_pgsql lt; 2.0.3 gt;= 2.0.3

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

The error logging functions of mod_auth_pgsql fail to validate certain
strings before passing them to syslog, resulting in format string
vulnerabilities.

Impact
======

An unauthenticated remote attacker could exploit these vulnerabilities
to execute arbitrary code with the rights of the user running the
Apache2 server by sending specially crafted login names.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All mod_auth_pgsql users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose "gt;=net-www/mod_auth_pgsql-2.0.3"

References
==========

[ 1 ] CVE-2005-3656
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3656
[ 2 ] FrSIRT ADV-2006-0070
http://www.frsirt.com/english/advisories/2006/0070

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

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

http://security.gentoo.org/glsa/glsa-200601-05.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/2.0



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