Google Chrome before 17.0.963.56 does not properly perform a cast of an unspecified variable during handling of columns, which allows remote attackers to cause a denial of service or possibly have unknown other impact via a crafted document.
code.google.com/p/chromium/issues/detail?id=112847
googlechromereleases.blogspot.com/2012/02/chrome-stable-update.html
lists.apple.com/archives/security-announce/2012/Jul/msg00000.html
lists.apple.com/archives/security-announce/2012/Sep/msg00001.html
lists.apple.com/archives/security-announce/2012/Sep/msg00003.html
secunia.com/advisories/48016
support.apple.com/kb/HT5400
support.apple.com/kb/HT5485
support.apple.com/kb/HT5503
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14955