The PDF functionality in Google Chrome before 19.0.1084.52 does not properly perform a cast of an unspecified variable during handling of color spaces, 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=127883
googlechromereleases.blogspot.com/2012/05/stable-channel-update_23.html
osvdb.org/82248
secunia.com/advisories/49277
www.securityfocus.com/bid/53679
www.securitytracker.com/id?1027098
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15566