WebM libvpx (aka the VP8 Codec SDK) before 0.9.5, as used in Google Chrome before 7.0.517.44, allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via invalid frames.
code.google.com/p/chromium/issues/detail?id=60055
googlechromereleases.blogspot.com/2010/11/stable-channel-update.html
review.webmproject.org/gitweb?p=libvpx.git%3Ba=blob%3Bf=CHANGELOG
review.webmproject.org/gitweb?p=libvpx.git%3Ba=commit%3Bh=09bcc1f710ea65dc158639479288fb1908ff0c53
secunia.com/advisories/42109
secunia.com/advisories/42118
secunia.com/advisories/42690
secunia.com/advisories/42908
security.gentoo.org/glsa/glsa-201101-03.xml
www.vupen.com/english/advisories/2011/0115
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12198
rhn.redhat.com/errata/RHSA-2010-0999.html