Vulnerability CVE-2022-31623


Published: 2022-05-25   Modified: 2022-05-26

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.

Type:

CWE-667

(Improper Locking)

CVSS2 => (AV:L/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
2.1/10
2.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Mariadb -> Mariadb 

 References:
https://github.com/MariaDB/server/pull/1938
https://github.com/MariaDB/server/commit/7c30bc38a588b22b01f11130cfe99e7f36accf94

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