受影响系统：

    Cisco IOS
    Cisco IOS XE

描述：CVE(CAN) ID: CVE-2017-12237

Cisco IOS是多数思科系统路由器和网络交换机上使用的互联网络操作系统。

Cisco IOS Software/Cisco IOS XE Software在IKEv2模块中存在安全漏洞，可使未经身份验证的远程攻击者造成CPU耗尽、追踪消息、受影响设备重载，导致拒绝服务。

<*来源：Cisco
 
  链接：https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-ike
*>

建议：厂商补丁：

Cisco
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Cisco已经为此发布了一个安全公告（cisco-sa-20170927-ike）以及相应补丁:
cisco-sa-20170927-ike：Cisco IOS and IOS XE Software Internet Key Exchange Denial of Service Vulnerability
链接：https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-ike