#VU59358 Uncontrolled recursion in systemd - CVE-2021-3997

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Main Vulnerability Database Vulnerabilities #VU59358

#VU59358 Uncontrolled recursion in systemd - CVE-2021-3997

Published: January 10, 2022 / Updated: January 11, 2022


Vulnerability identifier: #VU59358
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:U/U:Clear
CVE-ID: CVE-2021-3997
CWE-ID: CWE-674
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
systemd
Software vendor:
Freedesktop.org

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to uncontrolled recursion in systemd-tmpfiles. A local user can create multiple nested directories in the /tmp folder and case systemd to crash during the system boot.


Remediation

Install update from vendor's website.

External links