full-disclosure - [ GLSA 200606-18 ] PAM-MySQL: Multiple vulnerabilities

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Date: Thu Jun 15 16:59:31 2006
From: jaervosz at gentoo.org (Sune Kloppenborg Jeppesen)
Subject: [ GLSA 200606-18 ] PAM-MySQL: Multiple
	vulnerabilities

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Gentoo Linux Security Advisory                           GLSA 200606-18
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: PAM-MySQL: Multiple vulnerabilities
      Date: June 15, 2006
      Bugs: #120842
        ID: 200606-18

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Synopsis
========

Vulnerabilities in PAM-MySQL can lead to a Denial of Service, making it
impossible to log into a machine.

Background
==========

PAM-MySQL is a PAM module used to authenticate users against a MySQL
backend.

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

    -------------------------------------------------------------------
     Package             /  Vulnerable  /                   Unaffected
    -------------------------------------------------------------------
  1  sys-auth/pam_mysql      < 0.7_rc1                      >= 0.7_rc1

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

A flaw in handling the result of pam_get_item() as well as further
unspecified flaws were discovered in PAM-MySQL.

Impact
======

By exploiting the mentioned flaws an attacker can cause a Denial of
Service and thus prevent users that authenticate against PAM-MySQL from
logging into a machine. There is also a possible additional attack
vector with more malicious impact that has not been confirmed yet.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All PAM-MySQL users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=sys-auth/pam_mysql-0.7_rc1"

References
==========

  [ 1 ] Official release information
        http://pam-mysql.sourceforge.net/News/

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

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

  http://security.gentoo.org/glsa/glsa-200606-18.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 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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