CVE-2022-31621

Name: CVE-2022-31621
Creator: NVD / NIST
Published: 2022-05-25T21:15:08.573+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.21%

Last modified Jun 17, 2026

CVE-2022-31621 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. MariaDB Server before 10.7 is vulnerable to Denial of Service. In extra/mariabackup/ds_xbstream.cc, when an error occurs (stream_ctxt->dest_file == NULL) while executing the method xbstream_open, the held lock is not released correctly, which allows local users to trigger a denial of service due to the deadlock. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

Description

MariaDB Server before 10.7 is vulnerable to Denial of Service. In extra/mariabackup/ds_xbstream.cc, when an error occurs (stream_ctxt->dest_file == NULL) while executing the method xbstream_open, the held lock is not released correctly, which allows local users to trigger a denial of service due to the deadlock. Note: The vendor argues this is just an improper locking bug and not a vulnerability with adverse effects.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.21%

11.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-667

Affected Software

Vendor	Product	Versions
Mariadb	Mariadb	< 10.2.41
Mariadb	Mariadb	>= 10.3.0, < 10.3.32
Mariadb	Mariadb	>= 10.4.0, < 10.4.22
Mariadb	Mariadb	>= 10.5.0, < 10.5.13
Mariadb	Mariadb	>= 10.6.0, < 10.6.5

References

https://github.com/MariaDB/server/commit/b1351c15946349f9daa7e5297fb2ac6f3139e4a8Patch, Third Party Advisory
https://jira.mariadb.org/browse/MDEV-26561
https://jira.mariadb.org/browse/MDEV-26574
https://jira.mariadb.org/browse/MDEV-26574?filter=-2Issue Tracking, Permissions Required, Third Party Advisory
https://security.netapp.com/advisory/ntap-20220707-0006/Third Party Advisory
https://github.com/MariaDB/server/commit/b1351c15946349f9daa7e5297fb2ac6f3139e4a8Patch, Third Party Advisory
https://jira.mariadb.org/browse/MDEV-26561
https://jira.mariadb.org/browse/MDEV-26574
https://jira.mariadb.org/browse/MDEV-26574?filter=-2Issue Tracking, Permissions Required, Third Party Advisory
https://security.netapp.com/advisory/ntap-20220707-0006/Third Party Advisory

Timeline

Published: May 25, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-31621?

How severe is CVE-2022-31621?

CVE-2022-31621 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.

How do I fix CVE-2022-31621?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-31621?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST