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Gentoo Linux Security Advisory                           GLSA 201209-09
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                                            http://security.gentoo.org/
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 Severity: Normal
    Title: Atheme IRC Services: Denial of Service
     Date: September 25, 2012
     Bugs: #409103
       ID: 201209-09

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Synopsis
========

A vulnerability has been found in Atheme which may lead to Denial of
Service or a bypass of security restrictions.

Background
==========

Atheme is a portable and secure set of open-source and modular IRC
services. CertFP is certificate fingerprinting used to authenticate
users to nicknames.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-irc/atheme-services      < 6.0.10                  >= 6.0.10

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

The myuser_delete() function in account.c does not properly remove
CertFP entries when deleting user accounts.

Impact
======

A remote authenticated attacker may be able to cause a Denial of
Service condition or gain access to an Atheme IRC Services user
account.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Atheme users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose
 ">=net-irc/atheme-services-6.0.10"

References
==========

[ 1 ] CVE-2012-1576
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-1576

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

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

 http://security.gentoo.org/glsa/glsa-201209-09.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
https://bugs.gentoo.org.

License
=======

Copyright 2012 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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