Cisco IP Phone (VoIP) models 7910 7940 and 7960 allow remote attackers to cause a denial of service (crash) via malformed packets as demonstrated by (1) \jolt\ (2) \jolt2\ (3) \raped\ (4) \hping2\ (5) \bloop\ (6) \bubonic\ (7) \mutant\ (8) \trash\ and (9) \trash2.\