CVE:CVE-2018-14646
CNNVD:CNNVD-201811-711
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 4.15-rc8之前版本中的net/netlink/af_netlink.c文件的‘__netlink_ns_capable()’函数存在安全漏洞。本地攻击者可利用该漏洞造成内核错误和拒绝服务（空指针逆向引用）。
solution:Upgrade linux linux_kernel to a higher version than 4.14,4.15:rc1,4.15:rc2,4.15:rc3,4.15:rc4,4.15:rc5,4.15:rc6,4.15:rc7,and avoid the version (,4.14],4.15:rc1,4.15:rc2,4.15:rc3,4.15:rc4,4.15:rc5,4.15:rc6,4.15:rc7; Upgrade redhat enterprise_linux_desktop to a higher version than 7.0,and avoid the version 7.0; Upgrade redhat enterprise_linux_server to a higher version than 7.0,and avoid the version 7.0; Upgrade redhat enterprise_linux_server_aus to a higher version than 7.6,and avoid the version 7.6; Upgrade redhat enterprise_linux_server_eus to a higher version than 7.5,7.6,and avoid the version 7.5,7.6; Upgrade redhat enterprise_linux_server_tus to a higher version than 7.6,and avoid the version 7.6; Upgrade redhat enterprise_linux_workstation to a higher version than 7.0,and avoid the version 7.0