CVE:CVE-2012-5017
CNNVD:CNNVD-201404-457
Cisco IOS是美国思科（Cisco）公司为其网络设备开发的操作系统。
Cisco IOS 15.1(1)SY及之前的版本中存在安全漏洞。远程攻击者可通过建立VPN会话，并发送畸形的IKEv2数据包利用该漏洞造成拒绝服务（设备重载）。
solution:Upgrade cisco ios to a higher version than 15.1\(1\sy,15.1,and avoid the version (,15.1\(1\)sy],15.1; 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 -