F5 Networks BIG-IP appliances are affected by a serious flaw, tracked as CVE-2016-9244 and dubbed Ticketbleed The flaw can be exploited by a remote attacker to extract the content of the memory, including sensitive data (i.e. SSL session IDs) The vulnerability lies in the implementation of Session Tickets, a resumption technique used to speed up repeated connections. The vulnerability was discovered by the popular security expert Filippo Valsorda and his colleagues at CloudFlare.”]
Source: http://securityaffairs.co/wordpress/56133/breaking-news/ticketbleed-flaw.html