Multiple unspecified vulnerabilities in FFmpeg 0.4.x through 0.6.x, as used in MPlayer 1.0 and other products, in Mandriva Linux 2009.0, 2010.0, and 2010.1; Corporate Server 4.0 (aka CS4.0); and Mandriva Enterprise Server 5 (aka MES5) have unknown impact and attack vectors, related to issues "originally discovered by Google Chrome developers."
flicvideo.c in libavcodec 0.6 and earlier in FFmpeg, as used in MPlayer and other products, allows remote attackers to execute arbitrary code via a crafted flic file, related to an "arbitrary offset dereference vulnerability."