OpenSSL security advisory for September 26

This OpenSSLsecurity advisory is notable in that it's the second one in four days;sites that updated after the first one may need to do so again."This security update addresses issues that were caused by patchesincluded in our previous security update, released on 22nd September2016. Given the Critical severity of one of these flaws we havechosen to release this advisory immediately to prevent upgrades to theaffected version, rather than delaying in order to provide our usualpublic pre-notification."