Cisco IPS Software 7.1 before 7.1(8)E4 and 7.2 before 7.2(2)E4 allows remote attackers to cause a denial of service (Analysis Engine process outage) via a flood of jumbo frames, aka Bug ID CSCuh94944.
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140219-ips