nginx: Information disclosure

Background

nginx is a robust, small, and high performance HTTP and reverse proxy server.

Description

An SSL session fixation vulnerability has been found in nginx when multiple servers use the same shared ssl_session_cache or ssl_session_ticket_key.

Impact

A remote attacker may be able to obtain sensitive information.

Workaround

There is no known workaround at this time.

Resolution

All nginx users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=www-servers/nginx-1.7.6"