The best place to get updated on this from now on is the IPS Alert Center located here:
http://www.cisco.com/cgi-bin/front.x/ipsalerts/ipsalertsHome.pl
This will be updated very regularly as new vulnerabilities/exploits are found, and will let you know what we plan on doing. If you click on the More... link in the Latest Threats window, you'll see a signature is currently being written for this particular vulnerability/exploit. Since it's a High severity it'll be released as soon as the signature is ready.
Woah, hang on, just as I write this the web page has been updated to say that it'll be released with S143, which will come out tonight sometime I would assume.
