New remote DOS for ISC BIND (DNS) just announced:
https://www.isc.org/node/474
securityfocus has a poc:
http://downloads.securityfocus.com/vulnerabilities/exploits/35848.txt
if i got all my bits straight this should drop and log those packets in a cisco asa firewall:
policy-map type inspect dns preset_dns_map
match header-flag eq 0×2800
drop log
Tags: DOS