TITLE:
McAfee WebShield SMTP Format String Vulnerability

SECUNIA ADVISORY ID:
SA19491

VERIFY ADVISORY:
http://secunia.com/advisories/19491/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
McAfee WebShield SMTP 4.x
http://secunia.com/product/228/

DESCRIPTION:
Ollie Whitehouse has reported a vulnerability in McAfee WebShield
SMTP, which can be exploited by malicious people to compromise a
vulnerable system.

The vulnerability is caused due to a format string error within the
construction of bounce messages for non-existent domains and can be
exploited by passing a specially crafted original destination
address.

Successful exploitation allows execution of arbitrary code.

The vulnerability has been reported in version 4.5 MR1a on the
Windows platform.

SOLUTION:
Apply patch P0803 (reportedly released in August 2003) or update to
version 4.5 MR2.

PROVIDED AND/OR DISCOVERED BY:
Ollie Whitehouse, Symantec.

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