[ GLSA 200502-29 ] Cyrus IMAP Server: Multiple overflow vulnerabilities
From: Matthias Geerdsen (vorlon_at_gentoo.org)
Date: 02/23/05
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Date: Wed, 23 Feb 2005 18:35:21 +0100 To: gentoo-announce@lists.gentoo.org
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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
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
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
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