CVE:CVE-2021-3635
CNNVD:CNNVD-202108-697
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。
Linux kernel netfilter存在安全漏洞，该漏洞具有root权限(CAP SYS ADMIN)的用户在发出netfilter netflow命令时能够使系统陷入瘫痪。
solution:Upgrade linux linux_kernel to a higher version than 5.5,5.5:rc1,5.5:rc2,5.5:rc3,5.5:rc4,5.5:rc5,5.5:rc6,and avoid the version (,5.5),5.5:rc1,5.5:rc2,5.5:rc3,5.5:rc4,5.5:rc5,5.5:rc6; Upgrade redhat enterprise_linux to a higher version than 6.0,7.0,8.0,and avoid the version 6.0,7.0,8.0; Upgrade fedoraproject fedora to a higher version than 34,and avoid the version 34