Novell Netmail IMAP append Denial of Service Vulnerability
iDefense Security Advisory 12.23.06
http://labs.idefense.com/intelligence/vulnerabilities/
Dec 23, 2006
I. BACKGROUND
Novell NetMail is an e-mail and calendar system that is based on standard
Internet protocols.
More information can be found at the vendors site:
http://www.novell.com/products/netmail/
II. DESCRIPTION
Remote exploitation of a Denial of Service vulnerability in Novell Netmail
3.52 could allow an authenticated attacker the ability to crash the imapd
server.
Novell NetMail can be made to crash by sending an APPEND command with a
single '(' character as an argument.
III. ANALYSIS
This vulnerability is limited to a DoS only condition and requires
authentication in order to exploit it.
IV. DETECTION
iDefense has confirmed the existence of this vulnerability in the IMAPD
server of Novell NetMail 3.52d and 3.52e. Older versions are suspected to
be vulnerable as well.
V. WORKAROUND
iDefense is currently unaware of any effective workaround for this issue.
VI. VENDOR RESPONSE
Novell has addressed this vulnerability in version 3.52e FTF2 of NetMail.
For more information consult Novell TID 3717068. This document is
available at the following link.
http://www.novell.com/support/search.do?cmd=displayKC&docType=kc&externalId=3717068&sliceId=SAL_Public&dialogID=22219381&stateId=0%200%2022225106
VII. CVE INFORMATION
A Mitre Corp. Common Vulnerabilities and Exposures (CVE) number has not
been assigned yet.
VIII. DISCLOSURE TIMELINE
10/16/2006 Initial vendor notification
10/19/2006 Initial vendor response
12/23/2006 Coordinated public disclosure
IX. CREDIT
This vulnerability was reported to iDefense by CIRT.DK.
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X. LEGAL NOTICES
Copyright © 2006 iDefense, Inc.
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Disclaimer: The information in the advisory is believed to be accurate at
the time of publishing based on currently available information. Use of
the information constitutes acceptance for use in an AS IS condition.
There are no warranties with regard to this information. Neither the
author nor the publisher accepts any liability for any direct, indirect,
or consequential loss or damage arising from use of, or reliance on, this
information.
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