Multiple buffer overflows in vorbis_dec.c in the Vorbis decoder in FFmpeg, as used in Google Chrome before 8.0.552.237 and Chrome OS before 8.0.552.344, allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly have unspecified other impact via a crafted WebM file, related to buffers for (1) the channel floor and (2) the channel residue.
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=610550
http://code.google.com/p/chromium/issues/detail?id=68115
http://codereview.chromium.org/5964011
http://codereview.chromium.org/6069005
http://googlechromereleases.blogspot.com/2011/01/chrome-stable-release.html
http://secunia.com/advisories/42951
https://exchange.xforce.ibmcloud.com/vulnerabilities/64671
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14380
http://www.debian.org/security/2011/dsa-2306
http://www.mandriva.com/security/advisories?name=MDVSA-2011:061