CVE-2022-31623

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.02%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory netapp.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/MariaDB/server/pull/1938 third party advisory patch
https://github.com/MariaDB/server/commit/7c30bc38a588b22b01f11130cfe99e7f36accf94 third party advisory patch
https://security.netapp.com/advisory/ntap-20220707-0006/ third party advisory
https://jira.mariadb.org/browse/MDEV-26574
https://jira.mariadb.org/browse/MDEV-26561

Frequently Asked Questions

What is the severity of CVE-2022-31623?
CVE-2022-31623 has been scored as a medium severity vulnerability.
How to fix CVE-2022-31623?
To fix CVE-2022-31623, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-31623 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-31623 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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