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VID 18012
Severity 30
Port 25
Protocol TCP
Class SMTP
Detailed Description The Concatus iMate Web Mail Server 2.5 is vulnerable to a denial of service, caused by a buffer overflow in a HELO command with an long argument. By sending an email using SMTP with a server name of 1119 characters or more, a remote attacker can overflow the buffer and cause the SMTP server to stop running, making it necessary for the service to be restarted.

* Warning: The mail server may be crashed by a buffer overflow test. Therefore restarting the service is required in order to regain normal functionality.

For detail descriptions, refer to the following site:
http://www.delphisplc.com/thinking/whitepapers/security/DST2K0006.txt

* References:
http://www.iss.net/security_center/static/4586.php
http://www.securityfocus.com/bid/1286
Recommendation Upgrade to the latest version of iMate (2.5.1 or later), available from the Concatus Web site:
http://www.imate.net/eng/index.html
Related URL CVE-2000-0507 (CVE)
Related URL (SecurityFocus)
Related URL (ISS)