RealNetworks Helix Universal Server Describe Buffer Overflow Vulnerability

Multiple buffer overflows in RealNetworks Helix Universal Server 9.0 (9.0.2.768) allow remote attackers to execute arbitrary code via (1) a long Transport field in a SETUP RSTP request, (2) a DESCRIBE RSTP request with a long URL argument, or (3) two simultaneous HTTP GET requests with long arguments.