WebKit, as used in Google Chrome before 10.0.648.204 and Apple Safari before 5.0.6, does not properly handle node parentage, which allows remote attackers to cause a denial of service (DOM tree corruption), conduct cross-site scripting (XSS) attacks, or possibly have unspecified other impact via unknown vectors.
code.google.com/p/chromium/issues/detail?id=74991
googlechromereleases.blogspot.com/2011/03/stable-channel-update.html
lists.apple.com/archives/security-announce/2011//Jul/msg00002.html
lists.apple.com/archives/Security-announce/2011//Oct/msg00001.html
secunia.com/advisories/43859
support.apple.com/kb/HT4808
support.apple.com/kb/HT4999
www.securityfocus.com/bid/47029
www.vupen.com/english/advisories/2011/0765
exchange.xforce.ibmcloud.com/vulnerabilities/66302
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14269