CVE:CVE-2020-3273
CNNVD:CNNVD-202004-1105
Cisco Wireless LAN Controller（WLC）Software是美国思科（Cisco）公司的一套用于配置和管理WLC（无线局域网控制器）的软件。
Cisco WLC Software中的802.11 Generic Advertisement Service (GAS)帧处理功能存在缓冲区错误漏洞，该漏洞源于程序没有对802.11 GAS帧进行充分的验证。远程攻击者可通过向无线接入点发送特制的802.11 GAS帧利用该漏洞造成设备重新加载，导致拒绝服务。
solution:Upgrade cisco 5508_wireless_controller_firmware to a higher version than 8.5(151.0,8.10(204.92,and avoid the version 8.5(151.0),8.10(204.92); Upgrade cisco 5520_wireless_controller_firmware to a higher version than 8.5(151.0,8.10(204.92,and avoid the version 8.5(151.0),8.10(204.92)