Heap-based buffer overflow in mplayerc.exe in Media Player Classic (MPC) 6.4.9.0 and earlier as used standalone and in mympc (aka CD-Storm) 1.0.0.1 StormPlayer 1.0.4 and possibly other products allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a .avi file with an \indx truck size\ of 0xffffffff and certain wLongsPerEntry and nEntriesInuse values.