The Web UI interface in (1) BitTorrent before 6.0.3 build 8642 and (2) uTorrent before 1.8beta build 10524 allows remote attackers to cause a denial of service (application crash) via an HTTP request with a malformed Range header.
https://www.exploit-db.com/exploits/5918
http://www.vupen.com/english/advisories/2008/1809
http://www.vupen.com/english/advisories/2008/1808
http://www.securitytracker.com/id?1020265
http://www.securityfocus.com/bid/29661
http://www.securityfocus.com/archive/1/493269/100/0/threaded
http://securitytracker.com/id?1020266
http://securityreason.com/securityalert/3943
http://secunia.com/secunia_research/2008-7/advisory/