A new vulnerability for the Opera browser has been identified. Opera users should look for an upcoming update, as the folks from Norway will most likely fix this promptly.
Opera 9.0 - New HTTPS vulnerability
http://www.frsirt.com/english/advisories/2006/2987
http://browserfun.blogspot.com/2006/07/mobb-26-opera-css-background.html
Advisory ID : FrSIRT/ADV-2006-2987
Rated as : Critical
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2006-07-26
Technical Description: A vulnerability has been identified in Opera, which could be exploited by remote attackers to crash a vulnerable browser or potentially take complete control of an affected system. This flaw is due to a memory corruption error when processing a CSS "background" property containing an overly HTTPS URI, which could be exploited by attackers to cause a denial of service or execute arbitrary commands by convincing a user to visit a specially crafted Web page.
Affected Products: Opera version 9