Google V8, as used in Google Chrome before 28.0.1500.95, allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors that leverage "type confusion."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17329
https://code.google.com/p/chromium/issues/detail?id=260106
http://www.debian.org/security/2013/dsa-2732
http://rhn.redhat.com/errata/RHSA-2013-1201.html
http://googlechromereleases.blogspot.com/2013/07/stable-channel-update_30.html