Revision History
Nov. 2, 2007 - Updated Products Not Affected table
Dec. 11, 2007 - Added information for SMS for Domino (English only) update
Dec. 19, 2007 - Added information for SMS for Microsoft Exchange (English only) update
Dec. 21, 2007 - Added information for supported localized advisories
Jan. 14, 2007 - Updated Symantec Response to identify that all updates are available.

Severity
Medium

Remote Access	Yes
Local Access	No
Authentication Required	No
Exploit publicly available	Yes

Overview
Multiple buffer overflow vulnerabilities have been identified in the Autonomy KeyView module used in Symantec’s Mail Security products.

Affected Products

Product	Version	Solution(s)
Symantec Mail Security for Domino	7.5	7.5.1.23
Symantec Mail Security for Microsoft Exchange	5.0	5.0.8.376
Symantec Mail Security for SMTP	5.0.0	Upgrade to 5.0.1 and apply patch 182
	5.0.1	Apply Patch 182
Symantec Mail Security Appliance	5.0.x	Update to 5.0.0-36 or later

Products Not Affected

Product	Version
Symantec Mail Security for Domino	All versions prior to 7.5
Symantec Mail Security for Microsoft Exchange	6.x
	4.x
Symantec Mail Security for SMTP	4.1
Symantec Mail Security Appliance	4.x

Details
Multiple vulnerabilities have been discovered in the Autonomy KeyView module shipped with the Symantec Mail Security products. The KeyView module is used to perform content filtering. If exploited, these vulnerabilities could potentially lead to a product denial of service and if successfully exploited potential remote code execution and possible system compromise.

The following file types are associated with this vulnerability:

• Adobe Acrobat FrameMaker (.mif)
• Ami Pro (.sam)
• Applix Words (.aw)
• Applix Presents (.ag)
• Dynamic Link Library (.dll)
• FrameMaker (.mif)
• Microsoft Rich Text Format (.rtf)
• Microsoft Word - (.doc)
• Microsoft Word for DOS (.doc)
• Portable Executable (.exe)
• WordPerfect (.wpd)

Symantec Response
Symantec engineers have worked with Autonomy to identify these vulnerabilities and have fixed all affected products and made updates available for download.

Upgrade Information
Symantec Mail Security for Domino and Microsoft Exchange updates are available through the Platinum Support Web Site for Platinum customers or through the FileConnect -Electronic Software Distribution web site.

Mitigations for Symantec Mail Security for Domino:

• Installations of Symantec Mail Security 7.5 for Domino that are not utilizing the Content Filtering capabilities of the product are not vulnerable.
• ONLY customers that are utilizing the attachment content scanning option within their content filtering rules are vulnerable.
  
  
• To disable the content filtering rules for Symantec Mail Security for Domino
  
  
  • Administrators are advised to disable content filtering rules that contain parameters that specify scanning of attachment content
    
    
  • The rules do not need to be deleted, only disabled until the updated release is installed
    
    
    • Select the "Content Filtering" tab to display the list of current enabled rules
      
      
    • Click on the checkmark to the left of any rules that utilize attachment content filtering, changing it to a red "X", and disabling the rule

Mitigations for Symantec Mail Security for Microsoft Exchange

• Installations of Symantec Mail Security 5.x for Exchange that are not utilizing the Content Filtering capabilities of the product are not vulnerable.
• ONLY customers that are utilizing the attachment content scanning option within their content filtering rules are vulnerable.
  
  
• To Disable the content filtering rules for Symantec Mail Security for Microsoft Exchange
  
  
  • Administrators are advised to disable content filtering rules that contain parameters that specify scanning of attachment content
    
    
  • The rules do not need to be deleted, only disabled until the updated release is installed
    
    
    • Select the "Policies" tab and then choose 'Content Filtering" to display the list of currently enabled rules
      
      
    • Ensure that all rules using attachment content are 'disabled'

Best Practices
As part of normal best practices, Symantec strongly recommends:

• Restrict access to administration or management systems to privileged users.
• Restrict remote access, if required, to trusted/authorized systems only.
• Run under the principle of least privilege where possible to limit the impact of exploit by threats.
• Keep all operating systems and applications updated with the latest vendor patches.
• Follow a multi-layered approach to security. Run both firewall and anti-malware applications, at a minimum, to provide multiple points of detection and protection to both inbound and outbound threats.
• Deploy network and host-based intrusion detection systems to monitor network traffic for signs of anomalous or suspicious activity. This may aid in detection of attacks or malicious activity related to exploitation of latent vulnerabilities

References
Secunia Security Advisory SA27367: http://secunia.com/advisories/27367/
Secunia Security Advisory SA27429: http://secunia.com/advisories/27429/
Secunia Security Advisory SA27388: http://secunia.com/advisories/27388/

SecurityFocus, http://www.securityfocus.com, has assigned a Bugtraq ID(BID) to this issue for inclusion in the SecurityFocus vulnerability data base. The BID assigned is 26175 which can be found at http://www.securityfocus.com/bid/26175.

Credit
Symantec would like to acknowledge Secunia at http://secunia.com/ for identifying these issues.

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

Symantec Product Vulnerability Management PGP Key

Copyright (c) 2008 by Symantec Corp.
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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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