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Gentoo Linux Security Advisory                           GLSA 200606-18
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                                            https://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
        
Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

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

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
https://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.

https://creativecommons.org/licenses/by-sa/2.5/