dnsserver in Cisco Application Control Engine Global Site Selector (GSS) before 3.0(1) allows remote attackers to cause a denial of service (daemon crash) via a series of crafted DNS requests, aka Bug ID CSCsj70093.
https://exchange.xforce.ibmcloud.com/vulnerabilities/47787
http://www.securityfocus.com/bid/33152
http://www.cisco.com/en/US/products/products_security_advisory09186a0080a57481.shtml