Recently I upgraded my server from Ubuntu Server 12.04 to Ubuntu Server 14.04 by means of a new installation from scratch.
Only one problem remains. In 12.04 Apache 2.2 with mod_ssl supported TLS version 1, 1.1 and 1.2. After upgrading to 14.04 and Apache 2.4, Apache only supports TLS version 1, support for 1.1 and 1.2 is missing.
I followed both the migration guide for 2.2 -> 2.4 (no changes to the mod_ssl settings) as well as the documentation of mod_ssl regarding the SSLProtocol configuration option.
SSLProtocol TLSv1.2 TLSv1.1 TLSv1
do not work. Is there any way to convince Apache to support the new TLS versions as well?
Problem seems to be solved now without any change from my side. Apparently libssl was initially compiled without TLSv1.1/TLSv1.2 support.