We have a new vulnerability well explained here. The easiest solution is to remove support for SSL 3.0 from the web server – that in itself is a trivial thing to do – be it Apache or Nginx. However there might be clients that support SSL 3.0 exclusively and none of the TLS versions.
As of now I see that Chrome, Firefox 33 and the Google Web Server (the server that powers its sites) supports this extension.
Once support for TLS Fallback Signaling Cipher Suite Value (SCSV) is available in OpenSSL then the web servers would support it as well.