Home/CVE/MariaDB Server before 10.7 is vulnerable to Denial of Service. In extra/mariabackup/ds_compress.cc, when an error occurs
CVE

CVE-2022-31623

MariaDB Server before 10.7 is vulnerable to Denial of Service. In extra/mariabackup/ds_compress.cc, when an error occurs

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.

MEDIUM · CVSS 5.5 EPSS 0.00033
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-667Improper Locking
▤

Affected Products & Versions

6
mariadb< 10.2.42
mariadb>= 10.3.0 and < 10.3.33
mariadb>= 10.4.0 and < 10.4.23
mariadb>= 10.5.0 and < 10.5.14
mariadb>= 10.6.0 and < 10.6.6
mariadb>= 10.7.0 and < 10.7.2
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD25 May 2022 · 09:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

7
rhsaRHSA-2023:6821Important
rhsaRHSA-2022:6306Moderate
rhsaRHSA-2022:5826Moderate
rhsaRHSA-2022:5759Moderate
rhsaRHSA-2022:5948Moderate
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/MariaDB/server/commit/7c30bc38a588b22b01f11130cfe99e7f36accf94PatchThird 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
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