Buffer overflow in Outlook Express 4.x allows attackers to cause a denial of service via a mail or news message that has a .jpg or .bmp attachment with a long file name.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2000-0414
http://www.securityfocus.com/bid/1195
http://archives.neohapsis.com/archives/bugtraq/2000-05/0140.html