Comment Userlimits can stop this attack. (Score 3, Informative) 131
If you properly implement system wide CPU and/or processor limits, you can prevent this from happening. you can enforce it globally or only for certain users. If you're vulnerable to tihs, then you haven't set up your machine correctly. (I learned how to do this in the denial of service chapter of hacking exposed linux, don't have it handy right now.)
