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Gentoo Linux Security Advisory                           GLSA 200608-09
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: MySQL: Denial of Service
      Date: August 06, 2006
      Bugs: #142429
        ID: 200608-09

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Synopsis
========

An authenticated user can crash MySQL through invalid parameters to the
date_format function.

Background
==========

MySQL is a popular multi-threaded, multi-user SQL server.

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

    -------------------------------------------------------------------
     Package       /  Vulnerable  /                         Unaffected
    -------------------------------------------------------------------
  1  dev-db/mysql      < 4.1.21                              >= 4.1.21

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

Jean-David Maillefer discovered a format string vulnerability in
time.cc where MySQL fails to properly handle specially formatted user
input to the date_format function.

Impact
======

By specifying a format string as the first parameter to the date_format
function, an authenticated attacker could cause MySQL to crash,
resulting in a Denial of Service.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All MySQL users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --verbose --oneshot ">=dev-db/mysql-4.1.21"

References
==========

  [ 1 ] CVE-2006-3469
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3469

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

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

  http://security.gentoo.org/glsa/glsa-200608-09.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/2.5

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