Vulnerability in Mariadb
CVE-2022-31623
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (12.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 12.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
Weakness classification (CWE)
References
- github.com/MariaDB/server/pull/1938 (Patch, Third Party Advisory)
- github.com/MariaDB/server/commit/7c30bc38a588b22b01f11130cfe99e7f36accf94 (Patch, Third Party Advisory)
- security.netapp.com/advisory/ntap-20220707-0006/ (Third Party Advisory)
- jira.mariadb.org/browse/MDEV-26574
- jira.mariadb.org/browse/MDEV-26561
Frequently asked questions
- What is CVE-2022-31623?
- CVE-2022-31623 is a medium-severity vulnerability in Mariadb, classified under Improper Locking. CVSS score: 5.5/10. Published 2022-05-25.
- How severe is CVE-2022-31623?
- Medium severity. CVSS v3 base score is 5.5 out of 10.