A Cyrus IMAP Server security update is available

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Gentoo Linux Security Advisory GLSA 200502-29
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http://security.gentoo.org/
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Severity: Normal
Title: Cyrus IMAP Server: Multiple overflow vulnerabilities
Date: February 23, 2005
Bugs: #82404
ID: 200502-29

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Synopsis
=======

The Cyrus IMAP Server is affected by several overflow vulnerabilities which could potentially lead to the remote execution of arbitrary code.

Background
=========

The Cyrus IMAP Server is an efficient, highly-scalable IMAP e-mail server.

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

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Package / Vulnerable / Unaffected
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1 net-mail/cyrus-imapd < 2.2.12 >= 2.2.12

Description
==========

Possible single byte overflows have been found in the imapd annotate extension and mailbox handling code. Furthermore stack buffer overflows have been found in fetchnews, the backend and imapd.

Impact
=====

An attacker, who could be an authenticated user or an admin of a peering news server, could exploit these vulnerabilities to execute arbitrary code with the rights of the user running the Cyrus IMAP Server.

Workaround
=========

There is no known workaround at this time.

Resolution
=========

All Cyrus IMAP Server users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-mail/cyrus-imapd-2.2.12"

References
=========

[ 1 ] Cyrus IMAP Announcement
http://asg.web.cmu.edu/archive/message.php?mailbox=archive.info-cyrus&msg=33723

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

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

http://security.gentoo.org/glsa/glsa-200502-29.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 2005 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/2.0