The remote host is missing an update to the system as announced in the referenced advisory.

Update your system with the appropriate patches or software upgrades. http://www.opera.com/support/kb/view/1003/ http://www.opera.com/support/kb/view/1004/ http://www.opera.com/support/kb/view/1005/ http://www.vuxml.org/freebsd/a4a809d8-25c8-11e1-b531-00215c6a37bb.html

The following packages are affected: opera linux-opera opera-devel CVE-2011-3389 The SSL protocol, as used in certain configurations in Microsoft Windows and Microsoft Internet Explorer, Mozilla Firefox, Google Chrome, Opera, and other products, encrypts data by using CBC mode with chained initialization vectors, which allows man-in-the-middle attackers to obtain plaintext HTTP headers via a blockwise chosen-boundary attack (BCBA) on an HTTPS session, in conjunction with JavaScript code that uses (1) the HTML5 WebSocket API, (2) the Java URLConnection API, or (3) the Silverlight WebClient API, aka a 'BEAST' attack. CVE-2011-4681 Opera before 11.60 does not properly consider the number of . (dot) characters that conventionally exist in domain names of different top-level domains, which allows remote attackers to bypass the Same Origin Policy by leveraging access to a different domain name in the same top-level domain, as demonstrated by the .no or .uk domain. CVE-2011-4682 The JavaScript engine in Opera before 11.60 does not properly implement the in operator, which allows remote attackers to bypass the Same Origin Policy via vectors related to variables on different web sites. CVE-2011-4683 Unspecified vulnerability in Opera before 11.60 has unknown impact and attack vectors, related to a 'moderately severe issue.'