CVE:CVE-2022-40188
CNNVD:CNNVD-202209-2415
Knot Resolver是一款缓存DNS解析器实现，它包括解析器库和守护程序。
Knot Resolver 5.5.3之前版本存在安全漏洞。远程攻击者利用该漏洞通过算法的复杂性造成拒绝服务（CPU消耗）。
solution:Upgrade nic knot_resolver to a higher version than 5.5.3,and avoid the version (,5.5.3); Upgrade fedoraproject fedora to a higher version than 35,36,37,and avoid the version 35,36,37; Upgrade debian debian_linux to a higher version than 10.0,and avoid the version 10.0