CVE-2010-1834
CFNetwork in Apple Mac OS X 10.6.x before 10.6.5 does not properly validate the domains of cookies, which makes it easier for remote web servers to track users by setting a cookie that is associated with a partial IP address.
Date published : 2010-11-15
http://lists.apple.com/archives/security-announce/2010//Nov/msg00000.html