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             AUSCERT External Security Bulletin Redistribution

                        ESB-2005.0824 -- SYM05-019
      Symantec Brightmail AntiSpam: Malformed MIME, Denial of Service
                              14 October 2005

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Symantec Brightmail AntiSpam 6.0.2 and prior
Publisher:         Symantec
Operating System:  Windows
                   Linux variants
                   Solaris
Impact:            Denial of Service
Access:            Remote/Unauthenticated

Original Bulletin: 
  http://securityresponse.symantec.com/avcenter/security/Content/2005.10.12d.html

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SYM05-019
October 12, 2005
Symantec Brightmail AntiSpam: Malformed MIME, Denial of Service

Revision History
None

Risk Impact
Low

Remote Access	Yes (incoming mail)
Local Access	No
Authentication Required	No
Exploit publicly available	NA

Details
A potential denial of service issue has been identified and fixed in the
Symantec Brightmail AntiSpam product. When processing malformed MIME
content, the bmserver component may terminate causing a denial of service.

Affected Product(s)

Product	                        Version	Build	Solution
Symantec Brightmail AntiSpam    6.0     1      Update patch 162
Symantec Brightmail AntiSpam    6.0     2      Update patch 161

Note: Customers with product versions prior to 6.0.1 are encouraged to
upgrade to the latest product version.

Symantec Response
An update for Symantec Brightmail AntiSpam Versions 6.0.1 has been
released and can be downloaded from the following location:
ftp://ftp.symantec.com/public/english_us_canada/products/sba/sba_60x/updates/patch162.zip

An update for Symantec Brightmail AntiSpam Versions 6.0.2 has been
released and can be downloaded from the following location:
ftp://ftp.symantec.com/public/english_us_canada/products/sba/sba_60x/updates/patch161.zip

Symantec is not aware of any active attempts against or customers impacted
by this issue.

As a part of normal best practices, users should keep vendor-supplied
patches for all application software and operating systems up-to-date.
Symantec strongly recommends any affected customers update their product
immediately to protect against these types of threats.

Symantec takes the security and proper functionality of its products
very seriously. As founding members of the Organization for Internet
Safety (OISafety), Symantec follows the principles of responsible
disclosure. Symantec also subscribes to the vulnerability guidelines
outlined by the National Infrastructure Advisory Council (NIAC). Please
contact secure@symantec.com if you feel you have discovered a potential
or actual security issue with a Symantec product. A Symantec Product
Security team member will contact you regarding your submission.

Symantec has developed a Product Vulnerability Handling Process document
outlining the process we follow in addressing suspected vulnerabilities
in our products. We support responsible disclosure of all vulnerability
information in a timely manner to protect Symantec customers and the
security of the Internet as a result of vulnerability. This document is
available from the location provided below.

Symantec strongly recommends using encrypted email for reporting
vulnerability information to secure@symantec.com. The Symantec Product
Security PGP key can be obtained from the location provided below.

Symantec Vulnerability Response Policy 	
http://securityresponse.symantec.com/security/Symantec-Product-Vulnerability-Response.pdf

Symantec Product Vulnerability Management PGP Key
http://securityresponse.symantec.com/security/Symantec-Vulnerability-Management-Key.asc

Copyright (c) 2005 by Symantec Corp.
Permission to redistribute this alert electronically is granted as long
as it is not edited in any way unless authorized by Symantec Security
Response. Reprinting the whole or part of this alert in any medium other
than electronically requires permission from secure@symantec.com.

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.

Symantec, Symantec products, Symantec Security Response, and SymSecurity
are registered trademarks of Symantec Corp. and/or affiliated companies
in the United States and other countries. All other registered and
unregistered trademarks represented in this document are the sole property
of their respective companies/owners.

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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

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