CVE:CVE-2004-0551
CNNVD:CNNVD-200408-107
Cisco CatOS 5.5(20)之前的5.x版本到8.2(2)和8.3(2)GLX之前的8.x版本存在漏洞。当用在Catalyst交换器中时，远程攻击者可以通过发送无效数据包取代到(1) Telnet， (2) HTTP，或者(3) SSH services的三向握手的最后ACK部分导致服务拒绝（系统崩溃和重装），也称为“TCP-ACK DoS攻击。”
solution:Upgrade cisco catos to a higher version than 2.1(1,2.1(2,2.1(3,2.1(4,2.1(5,2.1(6,2.1(7,2.1(8,2.1(9,2.1(10,2.1(11,2.1(12,2.2(1,2.2(2,2.3(1,2.4(1,2.4(2,2.4(3,2.4(4,2.4(5,2.4(5a,3.0(7,3.1(1,3.1(2,3.1(2a,3.2(1,3.2(1b,3.2(2,3.2(3,3.2(4,3.2(5,3.2(6,3.2(7,3.2(8gdr,4.1(1,4.1(2,4.1(3,4.2(1,4.2(2,4.3(1a,4.4(1,4.5(1,4.5(2,4.5(3,4.5(4,4.5(5,4.5(6,4.5(6a,4.5(7,4.5(8,4.5(9,4.5(10,4.5(11,4.5(12,4.5(12a,4.5(13,4.5(13a,4.5(14,5.1(1,5.1(1csx,5.1(1a,5.1(1acsx,5.1(2a,5.1(2b,5.2(1,5.2(1csx,5.2(2,5.2(2csx,5.2(3,5.2(3csx,5.2(3acsx,5.2(4,5.2(5,5.2(6,5.2(7,5.2(7a,5.3(1acsx,5.3(2csx,5.3(3csx,5.3(4csx,5.3(5csx,5.3(5acsx,5.3(6csx,5.3(6acsx,5.4,5.4(1,5.4(1deferred,5.4(2,5.4(2a,5.4(3,5.4(4,5.4(4a,5.5,5.5(1,5.5(1a,5.5(2,5.5(3,5.5(4,5.5(4a,5.5(4b,5.5(5,5.5(6,5.5(6a,5.5(7,5.5(7a,5.5(8,5.5(8a,5.5(8acv,5.5(9,5.5(10,5.5(10a,5.5(11,5.5(11a,5.5(12,5.5(12a,5.5(13,5.5(13.5,5.5(13a,5.5(14,5.5(15,5.5(16,5.5(16.2,5.5(17,5.5(18,5.5(19,6.1,6.1(1,6.1(1a,6.1(1b,6.1(1c,6.1(1d,6.1(1e,6.1(2,6.1(2a,6.1(3,6.1(3a,6.1(4,6.1(4b,6.2(1,6.2(1a,6.2(2,6.2(2a,6.2(3,6.2(3a,6.3(1,6.3(1a,6.3(2,6.3(2a,6.3(3,6.3(3x,6.3(3x1,6.3(3a,6.3(4,6.3(4a,6.3(5,6.3(5.10,6.3(6,6.3(7,6.3(8,6.3(8.3,6.3(9,6.3(10,6.4(1,6.4(2,6.4(3,6.4(4a,6.4(5,6.4(6,6.4(7,6.4(8,7.1(1,7.1(1a,7.1(2,7.1(2a,7.2(0.65,7.2(1,7.2(2,7.3,7.3(1,7.3(2,7.4,7.4(0.2clr,7.4(0.63,7.4(1,7.4(2,7.4(3,7.5,7.5(1,7.6,7.6(1,7.6(2,7.6(3,7.6(4,7.6(5,8.1,8.1(2,8.1(3,8.2,8.2(1,8.3(1glx,8.3glx,4.5(4b,4.5.10,5.1,5.2,5.2(1a,5.3(1csx,6.1(2.13,6.2(0.110,6.2(0.111,6.3(0.7pan,7.1,and avoid the version 2.1(1),2.1(2),2.1(3),2.1(4),2.1(5),2.1(6),2.1(7),2.1(8),2.1(9),2.1(10),2.1(11),2.1(12),2.2(1),2.2(2),2.3(1),2.4(1),2.4(2),2.4(3),2.4(4),2.4(5),2.4(5a),3.0(7),3.1(1),3.1(2),3.1(2a),3.2(1),3.2(1b),3.2(2),3.2(3),3.2(4),3.2(5),3.2(6),3.2(7),3.2(8)gdr,4.1(1),4.1(2),4.1(3),4.2(1),4.2(2),4.3(1a),4.4(1),4.5(1),4.5(2),4.5(3),4.5(4),4.5(5),4.5(6),4.5(6a),4.5(7),4.5(8),4.5(9),4.5(10),4.5(11),4.5(12),4.5(12a),4.5(13),4.5(13a),4.5(14),5.1(1),5.1(1)csx,5.1(1a),5.1(1a)csx,5.1(2a),5.1(2b),5.2(1),5.2(1)csx,5.2(2),5.2(2)csx,5.2(3),5.2(3)csx,5.2(3a)csx,5.2(4),5.2(5),5.2(6),5.2(7),5.2(7a),5.3(1a)csx,5.3(2)csx,5.3(3)csx,5.3(4)csx,5.3(5)csx,5.3(5a)csx,5.3(6)csx,5.3(6a)csx,5.4,5.4(1),5.4(1)deferred,5.4(2),5.4(2a),5.4(3),5.4(4),5.4(4a),5.5,5.5(1),5.5(1a),5.5(2),5.5(3),5.5(4),5.5(4a),5.5(4b),5.5(5),5.5(6),5.5(6a),5.5(7),5.5(7a),5.5(8),5.5(8a),5.5(8a)cv,5.5(9),5.5(10),5.5(10a),5.5(11),5.5(11a),5.5(12),5.5(12a),5.5(13),5.5(13.5),5.5(13a),5.5(14),5.5(15),5.5(16),5.5(16.2),5.5(17),5.5(18),5.5(19),6.1,6.1(1),6.1(1a),6.1(1b),6.1(1c),6.1(1d),6.1(1e),6.1(2),6.1(2a),6.1(3),6.1(3a),6.1(4),6.1(4b),6.2(1),6.2(1a),6.2(2),6.2(2a),6.2(3),6.2(3a),6.3(1),6.3(1a),6.3(2),6.3(2a),6.3(3),6.3(3)x,6.3(3)x1,6.3(3a),6.3(4),6.3(4a),6.3(5),6.3(5.10),6.3(6),6.3(7),6.3(8),6.3(8.3),6.3(9),6.3(10),6.4(1),6.4(2),6.4(3),6.4(4a),6.4(5),6.4(6),6.4(7),6.4(8),7.1(1),7.1(1a),7.1(2),7.1(2a),7.2(0.65),7.2(1),7.2(2),7.3,7.3(1),7.3(2),7.4,7.4(0.2)clr,7.4(0.63),7.4(1),7.4(2),7.4(3),7.5,7.5(1),7.6,7.6(1),7.6(2),7.6(3),7.6(4),7.6(5),8.1,8.1(2),8.1(3),8.2,8.2(1),8.3(1)glx,8.3glx,4.5(4b),4.5.10,5.1,5.2,5.2(1a),5.3(1)csx,6.1(2.13),6.2(0.110),6.2(0.111),6.3(0.7)pan,7.1; Upgrade cisco catalyst_2901 to a higher version than *; Upgrade cisco catalyst_2902 to a higher version than *; Upgrade cisco catalyst_2926 to a higher version than *; Upgrade cisco catalyst_2926f to a higher version than *; Upgrade cisco catalyst_2926gl to a higher version than *; Upgrade cisco catalyst_2926gs to a higher version than *; Upgrade cisco catalyst_2926t to a higher version than *; Upgrade cisco catalyst_2948 to a higher version than *; Upgrade cisco catalyst_2948-ge-tx to a higher version than *; Upgrade cisco catalyst_2948g-l3 to a higher version than *; Upgrade cisco catalyst_2980g to a higher version than *; Upgrade cisco catalyst_2980g-a to a higher version than *; Upgrade cisco catalyst_4000 to a higher version than *; Upgrade cisco catalyst_4500 to a higher version than *; Upgrade cisco catalyst_4503 to a higher version than *; Upgrade cisco catalyst_4506 to a higher version than *; Upgrade cisco catalyst_4507r to a higher version than *; Upgrade cisco catalyst_4510r to a higher version than *; Upgrade cisco catalyst_4912g to a higher version than *; Upgrade cisco catalyst_5000 to a higher version than *; Upgrade cisco catalyst_6000_ws-svc-nam-1 to a higher version than 2.2(1a,3.1(1a,and avoid the version 2.2(1a),3.1(1a); Upgrade cisco catalyst_6000_ws-svc-nam-2 to a higher version than 2.2(1a,3.1(1a,and avoid the version 2.2(1a),3.1(1a); Upgrade cisco catalyst_6000_ws-x6380-nam to a higher version than 2.1(2,3.1(1a,and avoid the version 2.1(2),3.1(1a)