Google Chrome before 7.0.517.41 does not properly handle animated GIF images, which allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a crafted image.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7646
http://www.vupen.com/english/advisories/2011/0552
http://www.vupen.com/english/advisories/2011/0212
http://www.vupen.com/english/advisories/2010/2731
http://www.securityfocus.com/bid/44241
http://www.debian.org/security/2011/dsa-2188
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html
http://googlechromereleases.blogspot.com/2010/10/stable-channel-update.html