Interpretation conflict in LScube Feng 0.1.15 and earlier allows remote attackers to cause a denial of service (NULL dereference and daemon crash) via a User-Agent header line that contains a carriage-return character, which is considered a line delimiter when the header is split into individual lines, but not when log_user_agent in RTSP_utils.c parses the content of the User-Agent line.
http://www.vupen.com/english/advisories/2008/0011
http://www.securityfocus.com/archive/1/485574/100/0/threaded
http://securityreason.com/securityalert/3507