GLSA 200510-10 uw-imap: Remote buffer overflow

Posted by Bob on: 10/11/2005 05:22 AM [ Print | 0 comment(s) ]

A new security update has been released for Gentoo Linux - uw-imap: Remote buffer overflow. Here the announcement:

Gentoo Linux Security Advisory GLSA 200510-10
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http://security.gentoo.org/
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Severity: High
Title: uw-imap: Remote buffer overflow
Date: October 11, 2005
Bugs: #108206
ID: 200510-10

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Synopsis
========

uw-imap is vulnerable to remote overflow of a buffer in the IMAP server
leading to execution of arbitrary code.

Background
==========

uw-imap is the University of Washington's IMAP and POP server daemons.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-mail/uw-imap lt; 2004g gt;= 2004g

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

Improper bounds checking of user supplied data while parsing IMAP
mailbox names can lead to overflowing the stack buffer.

Impact
======

Successful exploitation requires an authenticated IMAP user to request
a malformed mailbox name. This can lead to execution of arbitrary code
with the permissions of the IMAP server.

Workaround
==========

There are no known workarounds at this time.

Resolution
==========

All uw-imap users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose "gt;=net-mail/uw-imap-2004g"

References
==========

[ 1 ] CAN-2005-2933
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2933
[ 2 ] iDEFENSE Security Advisory

http://www.idefense.com/application/poi/display?id=313type=vulnerabilitiesflashstatus=false

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

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

http://security.gentoo.org/glsa/glsa-200510-10.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