A solution has been finally brought up to fix CVE-2009-3555 and the temporary solution that broke client authentication.
At least, the IETF agreed on a fix as Marsh Ray informs us, though it will still take some weeks for the whole validation process to complete.
Moreover, as it requires both the servers and the clients to be patched, it will take months before the patches can be applied and one can have a working client authentification architecture. The longest will be the client side, of course, so I feel sorry for those who have a large park to manage.
As far as I am concerned, fortunately, I will just have a few browsers that I manage directly to update. Anyway, still more patience is needed !