CVE-2006-7066
Microsoft Internet Explorer 6 on Windows XP SP2 allows remote attackers to cause a denial of service (crash) by creating an object inside an iframe, deleting the frame by setting its location.href to about:blank, then accessing a property of the object within the deleted frame, which triggers a NULL pointer dereference. NOTE: it was later reported that 7.0.6000.16473 and earlier are also affected.
Date published : 2007-02-27
http://www.securityfocus.com/bid/19228
http://archives.neohapsis.com/archives/bugtraq/2009-07/0193.html