From: Secunia Security Advisories (sec-advsecunia.com)
Date: Mon Oct 29 2007 - 18:27:03 CDT

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TITLE:
Symantec Mail Security for Exchange File Parsing Vulnerabilities

SECUNIA ADVISORY ID:
SA27429

VERIFY ADVISORY:
http://secunia.com/advisories/27429/

CRITICAL:
Highly critical

IMPACT:
DoS, System access

WHERE:
From remote

SOFTWARE:
Symantec Mail Security for Exchange 4.x
http://secunia.com/product/2820/
Symantec Mail Security for Microsoft Exchange 5.x
http://secunia.com/product/6650/
Symantec Mail Security for Microsoft Exchange 6.x
http://secunia.com/product/14765/

DESCRIPTION:
Multiple vulnerabilities have been discovered in Symantec Mail
Security for Exchange, which can be exploited by malicious people to
cause a DoS (Denial of Service) and compromise a vulnerable system.

The vulnerabilities are caused due to various errors within certain
third-party file viewers and can be exploited to cause buffer
overflows when a specially crafted file is checked.

The vulnerabilities are related to:
SA27304

Successful exploitation allows execution of arbitrary code, but
requires that e.g. a policy is setup for scanning the contents of
messages.

The vulnerabilities are confirmed in version 5.0.7.373. Other
versions may also be affected.

SOLUTION:
Secunia is currently not aware of available patches.

Disable scanning of message content if enabled.

PROVIDED AND/OR DISCOVERED BY:
Originally reported in IBM Lotus Notes advisories crediting:
* ZDI
* Tan Chew-Keong

OTHER REFERENCES:
SA27304:
http://secunia.com/advisories/27304/

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