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Home » Security Advisories» Gentoo » PAM-MySQL multiple vulnerabilities

PAM-MySQL multiple vulnerabilities

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.

  • Vendor: Gentoo
  • Vendor ID: GLSA 200606-18
  • Date: June 15, 2006


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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
[email protected] 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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