CVE-2021-3997

MEDIUM

systemd 240-250.1 - Denial of Service via Uncontrolled Recursion in systemd-tmpfiles

Title source: llm
STIX 2.1

Description

A flaw was found in systemd. An uncontrolled recursion in systemd-tmpfiles may lead to a denial of service at boot time when too many nested directories are created in /tmp.

References (5)

Core 5
Core References
Issue Tracking, Third Party Advisory
https://access.redhat.com/security/cve/CVE-2021-3997
Issue Tracking, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2024639
Exploit, Mailing List, Third Party Advisory
https://www.openwall.com/lists/oss-security/2022/01/10/2
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/202305-15

Scores

CVSS v3 5.5
EPSS 0.0155
EPSS Percentile 71.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-674
Status published
Products (6)
fedoraproject/fedora 34
fedoraproject/fedora 35
redhat/enterprise_linux 7.0
redhat/enterprise_linux 8.0
redhat/enterprise_linux 9.0
systemd_project/systemd 240 - 250.2
Published Aug 23, 2022
Tracked Since Feb 18, 2026