Google Chrome before 5.0.375.127 and webkitgtk before 1.2.6 do not properly support the Ruby language, which allows attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via unknown vectors.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12107
http://www.vupen.com/english/advisories/2011/0552
http://www.vupen.com/english/advisories/2011/0216
http://www.redhat.com/support/errata/RHSA-2011-0177.html
http://www.mandriva.com/security/advisories?name=MDVSA-2011:039
http://secunia.com/advisories/43086
http://googlechromereleases.blogspot.com/2010/08/stable-channel-update_19.html