Res Manager in Worldspan for Windows Gateway 4.1 allows remote attackers to cause a denial of service (crash) via a malformed request to TCP port 17990.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2002-1018
http://www.securityfocus.com/bid/5169
http://www.iss.net/security_center/static/9490.php
http://archives.neohapsis.com/archives/bugtraq/2002-07/0048.html