CVE:CVE-2022-3821
CNNVD:CNNVD-202211-2364
systemd是德国Lennart Poettering个人开发者的一款基于Linux的系统和服务管理器。该产品兼容了SysV和LSB的启动脚本，且提供了一个用来表示系统服务间依赖关系的框架。
systemd存在安全漏洞。攻击者利用该漏洞导致缓冲区溢出，从而导致拒绝服务。
solution:Upgrade systemd_project systemd to a higher version than 251,and avoid the version (,251]; Upgrade redhat enterprise_linux to a higher version than 8.0,9.0,and avoid the version 8.0,9.0; Upgrade fedoraproject fedora to a higher version than 35,and avoid the version 35