bugtraq - [ GLSA 200510-10 ] uw-imap: Remote buffer overflow

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Date: Tue, 11 Oct 2005 13:13:25 +0200
From: Thierry Carrez <koon@...too.org>
To: gentoo-announce@...ts.gentoo.org
Cc: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com,
	security-alerts@...uxsecurity.com
Subject: [ GLSA 200510-10 ] uw-imap: Remote buffer overflow

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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       < 2004g                           >= 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 ">=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=313&type=vulnerabilities&flashstatus=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@...too.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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