The DRACOON servers are continuously patched for your security. First updates against the security gap Meltdown were installed on 05.01.18.
According to our knowledge, exploitation of the security vulnerability on the DRACOON servers was not and is not possible at any time.
The real danger of the vulnerability is on the client computers.
Therefore, the most effective protection against these gaps is to install all updates from the manufacturers for the browser, operating system and BIOS.