CVE:CVE-2018-0155
CNNVD:CNNVD-201803-1035
Cisco Catalyst 4500 Series Switches和Cisco Catalyst 4500-X Series Switches都是美国思科（Cisco）公司的产品。Cisco Catalyst 4500 Series Switches是一款4500系列交换机。Cisco Catalyst 4500-X Series Switches是一款4500-X系列交换机。
Cisco Catalyst 4500系列和Cisco Catalyst 4500-X系列转换器中的IOS和IOS XE Software的Bidirectional Forwarding Detection (BFD) offload实现存在代码问题漏洞，该漏洞源于程序没有充分的处理错误。远程攻击者可通过发送特制的BFD消息利用该漏洞造成拒绝服务（崩溃）。以下产品受到影响：Cisco Catalyst 4500 Supervisor Engine 6-E (K5)；Catalyst 4500 Supervisor Engine 6L-E (K10)；Catalyst 4500 Supervisor Engine 7-E (K10)；Catalyst 4500 Supervisor Engine 7L-E (K10)；Catalyst 4500E Supervisor Engine 8-E (K10)；Catalyst 4500E Supervisor Engine 8L-E (K10)；Catalyst 4500E Supervisor Engine 9-E (K10)；Catalyst 4500-X Series Switches (K10)；Catalyst 4900M Switch (K5)；Catalyst 4948E Ethernet Switch (K5)。
solution:Upgrade cisco ios to a higher version than 3.6(2e,and avoid the version 3.6(2)e; Upgrade cisco ios_xe to a higher version than 3.6(2e,and avoid the version 3.6(2)e