Buffer overflow in Trivial HTTP (THTTPd) allows remote attackers to cause a denial of service or execute arbitrary commands via a long If-Modified-Since header.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2000-0358
http://www.securityfocus.com/bid/1248
http://www.novell.com/linux/security/advisories/suse_security_announce_30.html