CVE-2006-3945
The CSS functionality in Opera 9 on Windows XP SP2 allows remote attackers to cause a denial of service (crash) by setting the background property of a DHTML element to a long http or https URL, which triggers memory corruption.
Date published : 2006-07-31
http://browserfun.blogspot.com/2006/07/mobb-26-opera-css-background.html