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CVE-2021-3997

Date: August 22, 2022

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.

Severity Score

5.5

Related Resources (9)

Url: https://github.com/systemd/systemd/commit/5b1cf7a9be37e20133c0208005274ce4a5b5c6a1

Url: https://bugzilla.redhat.com/show_bug.cgi?id=2024639

Url: https://security-tracker.debian.org/tracker/CVE-2021-3997

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2021-3997

Url: https://www.openwall.com/lists/oss-security/2022/01/10/2

Url: https://access.redhat.com/security/cve/CVE-2021-3997

Url: https://nvd.nist.gov/vuln/detail/CVE-2021-3997

Url: https://security.gentoo.org/glsa/202305-15

Url: https://www.mend.io/vulnerability-database/CVE-2021-3997

Severity Score

5.5

Weakness Type (CWE)

Uncontrolled Recursion

CWE-674

CVSS v3.1

Base Score:	5.5
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

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