CVE:CVE-2013-1165
CNNVD:CNNVD-201304-184
Cisco IOS是美国思科（Cisco）公司为其网络设备开发的操作系统。
Cisco 1000系列Aggregation Services Routers（ASR）中的Cisco IOS XE存在拒绝服务漏洞。通过发送大量特制的L2TP数据包，攻击者可以利用该漏洞造成拒绝服务（card重载）。Cisco IOS XE 3.4.5S之前的2.x和3.x版本，以及3.7.1S之前的3.5至3.7版本中存在此漏洞。
solution:Upgrade cisco ios_xe to a higher version than 3.4.3s,2.1.0,2.1.1,2.1.2,2.2.1,2.2.2,2.2.3,2.3.0,2.3.1,2.3.1t,2.3.2,2.4.0,2.4.1,2.4.2,2.4.3,2.4.4,2.5.0,2.5.1,2.5.2,2.6.0,2.6.1,2.6.2,3.1.0s,3.1.1s,3.1.2s,3.1.3s,3.1.4s,3.4.0as,3.4.0s,3.4.2s,3.7.0s,and avoid the version (,3.4.3s],2.1.0,2.1.1,2.1.2,2.2.1,2.2.2,2.2.3,2.3.0,2.3.1,2.3.1t,2.3.2,2.4.0,2.4.1,2.4.2,2.4.3,2.4.4,2.5.0,2.5.1,2.5.2,2.6.0,2.6.1,2.6.2,3.1.0s,3.1.1s,3.1.2s,3.1.3s,3.1.4s,3.4.0as,3.4.0s,3.4.2s,3.7.0s; Upgrade cisco asr_1001 to a higher version than -; Upgrade cisco asr_1002 to a higher version than -; Upgrade cisco asr_1002-x to a higher version than -; Upgrade cisco asr_1002_fixed_router to a higher version than -; Upgrade cisco asr_1004 to a higher version than -; Upgrade cisco asr_1006 to a higher version than -; Upgrade cisco asr_1023_router to a higher version than -