How does this milw0rm heap spraying exploit work?

Question

I usually do not have difficulty to read JavaScript code but for this one I can’t figure out the logic. The code is from an exploit that has been published 4 days ago. You c

Answer 1

Heap Spraying is common way to exploit browser stuff, if you are into it you can find several posts like this : http://sf-freedom.blogspot.com/2006/06/heap-spraying-introduction.html