Comment by crnkovic

This appears to be a description of a theoretical attack to cause a specific target networked Bitcoin node to consume quite a bit of bandwidth by returning blockchain data to the attacker. It doesn't seem like this would have any effect on the Bitcoin network at large, however. While I don't doubt that there exists an obscure client vulnerability that could be patched, it seems far-fetched and alarmist to categorise this as a "bitcoin exploit".