CVE:CVE-2019-19074
CNNVD:CNNVD-201911-1093
Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。
Linux kernel 5.3.11及之前版本中的drivers/net/wireless/ath/ath9k/wmi.c文件的‘ath9k_wmi_cmd()’函数存在内存泄露漏洞。攻击者可利用该漏洞造成拒绝服务（内存消耗）。
solution:Upgrade linux linux_kernel to a higher version than 4.4.233,4.9.233,4.14.192,4.19.137,5.4,and avoid the version (,4.4.233),[4.5,4.9.233),[4.10,4.14.192),[4.15,4.19.137),[4.20,5.4); Upgrade debian debian_linux to a higher version than 9.0,and avoid the version 9.0; Upgrade canonical ubuntu_linux to a higher version than 14.04,16.04,18.04,and avoid the version 14.04,16.04,18.04