CVE-2022-31623: mariadb Improper Locking
Vulnerability summary
CVE-2022-31623 is a medium (CVSS 5.5) Improper Locking vulnerability in mariadb. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 13.1% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 6Timeline
- 25-05-2022PublishedVulnerability first disclosed.
- 29-10-2024Last modifiedVulnerability information updated.
Description
MariaDB Server before 10.7 is vulnerable to Denial of Service. In extra/mariabackup/ds_compress.cc, when an error occurs (i.e., going to the err label) while executing the method create_worker_threads, the held lock thd->ctrl_mutex 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.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · AlpineEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.23%
Chance of exploitation in the next 30 days
Percentile
13%
Versus all other CVEs
30-day change
+0.01 pp
From 0.22% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Alpine1 product
- mariadb≥ 10.3.0, < 10.6.7-r0
Debian1 product
- mariadb-10.5< 1:10.5.15-0+deb11u1
Mariadb1 product
- mariadb< 10.2.42 | ≥ 10.3.0, < 10.3.33 | ≥ 10.4.0, < 10.4.23 | ≥ 10.5.0, < 10.5.14 | ≥ 10.6.0, < 10.6.6 | ≥ 10.7.0, < 10.7.2
3 vendors · 3 products
References
8 links- security.netapp.com/advisory/ntap-20220707-0006/Third Party Advisory
