PT-2021-7209 · Mariadb+5 · Mariadb Server+5

Vaintroub · Published 2021-09-15 · Updated 2025-06-10 · CVE-2022-31621

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 xbstream open method, located in extra/mariabackup/ds xbstream.cc. When an error occurs, specifically when stream ctxt->dest file equals NULL, the lock held is not released correctly. This can lead to a deadlock, allowing local users to trigger a denial of service. 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 restricting access to the xbstream open method in extra/mariabackup/ds xbstream.cc to minimize the risk of exploitation.

Exploit

Fix

DoS

Improper Locking

Weakness Enumeration

CWE-667

Related Identifiers

ALT-PU-2022-2360

ALT-PU-2022-2446

ALT-PU-2023-1583

ALT-PU-2023-6462

BDU:2022-03789

BIT-MARIADB-2022-31621

BIT-MARIADB-MIN-2022-31621

BIT-MYSQL-CLIENT-2022-31621

CESA-2022_1556

CESA-2022_1557

CVE-2022-31621

RHSA-2022:1007

RHSA-2022:1010

RHSA-2022:1556

RHSA-2022:1557

RHSA-2022:4818

RHSA-2022_1556

RHSA-2022_1557

RHSA-2023:6821

RLSA-2022:1556

RLSA-2022:1557

ROSA-SA-2023-2254

Affected Products

Alt Linux

Astra Linux

Centos

Mariadb Server

Red Hat

Rocky Linux

References · 51

• 🔥 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/b1351c15946349f9daa7e5297fb2ac6f3139e4a8 · Patch
• https://osv.dev/vulnerability/BIT-mysql-client-2022-31621 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-31621 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2022-31621 · Vendor Advisory
• https://osv.dev/vulnerability/RLSA-2022:1557 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-03789 · Security Note
• https://errata.rockylinux.org/RLSA-2022:1557 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-31621 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-mariadb-2022-31621 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-31621 · Vendor Advisory
• https://osv.dev/vulnerability/RLSA-2022:1556 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-31621 · Vendor Advisory