Denial of Service Vulnerability in Systemd Affecting Linux Distributions

CVE-2021-3997

What is CVE-2021-3997?

A vulnerability exists in systemd, specifically in the systemd-tmpfiles component, which could result in denial of service during system boot. This flaw leads to uncontrolled recursion when an excessive number of nested directories are created in the /tmp directory, potentially hanging the system or causing it to fail to boot properly. Users of affected versions of systemd are advised to apply patches to mitigate this issue.

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