Heap-based buffer overflow in RealNetworks RealPlayer 11.0 through 11.1, RealPlayer SP 1.0 through 1.1.5, and RealPlayer Enterprise 2.1.2 and 2.1.3 allows remote attackers to execute arbitrary code via a crafted value in an unspecified header field in an RMX file.
http://www.zerodayinitiative.com/advisories/ZDI-10-281
http://www.securitytracker.com/id?1024861
http://service.real.com/realplayer/security/12102010_player/en/