Microsoft has announced that at 1 PM Pacific they will issue an "out of band" security patch. Meaning, of course, that this is in addition to the regularily scheduled once-a-month patch Tuesday releases.
For the best ever description of full TCP connection denial of service attacks read this post by Fyoder (really Gordon Lyon).
Update: I was wrong. Here is a better link for following the progress of the TCP issues. Thanks Robert!
Cisco has announced that they are checking into the recent claims of TCP vulnerabilities, maybe Microsoft is releasing a patch to address it.
Stay tuned. Follow me on Twitter.