Stack-based buffer overflow in (1) uTorrent 1.7.7 build 8179 and earlier and (2) BitTorrent 6.0.3 build 8642 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long Created By field in a .torrent file.

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.