PT-2021-7212 · Mariadb+6 · Mariadb Server+6

Published 2021-09-07 · Updated 2025-06-10 · CVE-2022-31623

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions MariaDB Server versions prior to 10.7

Description The issue is related to a denial of service vulnerability. In the file extra/mariabackup/ds compress.cc, when an error occurs while executing the create worker threads method, the held lock thd->ctrl mutex is not released correctly, allowing local users to trigger a denial of service due to a deadlock. The vendor considers this an improper locking bug rather than a vulnerability with adverse effects.

Recommendations For MariaDB Server versions prior to 10.7, update to version 10.7 or later to resolve the issue. As a temporary workaround, consider disabling the create worker threads method in the affected file until a patch is available. Restrict access to the extra/mariabackup/ds compress.cc file to minimize the risk of exploitation.

Exploit

Fix

DoS

Improper Resource Release

Improper Locking

Weakness Enumeration

CWE-404

CWE-667

Related Identifiers

ALSA-2022:5826

ALSA-2022:5948

ALSA-2022:6443

ALT-PU-2022-2360

ALT-PU-2022-2446

ALT-PU-2023-1583

ALT-PU-2023-6462

BDU:2022-03792

BIT-MARIADB-2022-31623

BIT-MARIADB-MIN-2022-31623

BIT-MYSQL-CLIENT-2022-31623

CESA-2022_5826

CESA-2022_6443

CVE-2022-31623

RHSA-2022:5759

RHSA-2022:5826

RHSA-2022:5948

RHSA-2022:6306

RHSA-2022:6443

RHSA-2022_5826

RHSA-2022_5948

RHSA-2022_6443

RHSA-2023:6821

RLSA-2022:5826

RLSA-2022:5948

RLSA-2022:6443

ROSA-SA-2023-2254

Affected Products

Alt Linux

Almalinux

Astra Linux

Centos

Mariadb Server

Red Hat

Rocky Linux

References · 179

• 🔥 https://github.com/drago-96/CVE-2022-0778 · Exploit
• 🔥 https://github.com/yywing/cve-2022-0778 · Exploit
• 🔥 https://github.com/jkakavas/CVE-2022-0778-POC · Exploit
• https://github.com/MariaDB/server/commit/7c30bc38a588b22b01f11130cfe99e7f36accf94 · Patch
• https://github.com/MariaDB/server/pull/1938 · Patch
• https://osv.dev/vulnerability/ALSA-2022:6443 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-31623 · Vendor Advisory
• https://errata.rockylinux.org/RLSA-2022:6443 · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2022:5826 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-31623 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-31623 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-mariadb-2022-31623 · Vendor Advisory
• https://errata.rockylinux.org/RLSA-2022:5826 · Vendor Advisory
• https://osv.dev/vulnerability/ALPINE-CVE-2022-31623 · Vendor Advisory
• https://osv.dev/vulnerability/RLSA-2022:5948 · Vendor Advisory