OpenSSL Security Advisory [05 Jun 2014]

By default F5 does not use OpenSSL. Pending an official answer from F5 I would surmise that this newly discovered vulnerability does not affect F5-users. There are some (relatively rare) configurations that could use OpenSSL, but just as with Heartbleed there shouldn't be a problem if you use the default configuration for SSL (i.e. terminate SSL on the F5-device).