Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mariadb | Mariadb | < 10.2.42 |
Related Weaknesses (CWE)
References
- https://github.com/MariaDB/server/commit/7c30bc38a588b22b01f11130cfe99e7f36accf9PatchThird Party Advisory
- https://github.com/MariaDB/server/pull/1938PatchThird Party Advisory
- https://jira.mariadb.org/browse/MDEV-26561
- https://jira.mariadb.org/browse/MDEV-26574
- https://security.netapp.com/advisory/ntap-20220707-0006/Third Party Advisory
- https://github.com/MariaDB/server/commit/7c30bc38a588b22b01f11130cfe99e7f36accf9PatchThird Party Advisory
- https://github.com/MariaDB/server/pull/1938PatchThird Party Advisory
- https://jira.mariadb.org/browse/MDEV-26561
- https://jira.mariadb.org/browse/MDEV-26574
- https://security.netapp.com/advisory/ntap-20220707-0006/Third Party Advisory
FAQ
What is CVE-2022-31623?
CVE-2022-31623 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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...
How severe is CVE-2022-31623?
CVE-2022-31623 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-31623?
Check the references section above for vendor advisories and patch information. Affected products include: Mariadb Mariadb.