I am studying about SegmentSmack vulnerability. As far as I understood, the vulnerability is due to the fact the reordering the packets in the out-of-order buffer is a very CPU intensive operation. So a packet which is extremely out-of-order can exploit the vulnerability.
But I didn't understand what extremely out-of-order means. Does it mean I have to re-arrange the packets such that packets that are supposed to be adjacent are very far from each other? Does that simple operation make a normal stream of packets an exploit?