VulnerabilityModified
CVE-2021-3997
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.
MEDIUM 5.5EPSS 1.56%
Does this matter?
Lower severity and a low EPSS score (1.56%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.56% probability · 74th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-674
- Affected
- systemd project/systemd · fedoraproject/fedora · redhat/enterprise linux
- Source
- secalert@redhat.com
References
- https://access.redhat.com/security/cve/CVE-2021-3997Issue Tracking, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2024639Issue Tracking, Patch, Third Party Advisory
- https://github.com/systemd/systemd/commit/5b1cf7a9be37e20133c0208005274ce4a5b5c6a1Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202305-15
- https://www.openwall.com/lists/oss-security/2022/01/10/2Exploit, Mailing List, Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2021-3997Issue Tracking, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2024639Issue Tracking, Patch, Third Party Advisory
- https://github.com/systemd/systemd/commit/5b1cf7a9be37e20133c0208005274ce4a5b5c6a1Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202305-15
- https://www.openwall.com/lists/oss-security/2022/01/10/2Exploit, Mailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.