CVE Vulnerabilities

CVE-2021-46666

Reachable Assertion

Published: Feb 01, 2022 | Modified: Apr 13, 2022
CVSS 3.x
5.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
2.1 LOW
AV:L/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu

MariaDB before 10.6.2 allows an application crash because of mishandling of a pushdown from a HAVING clause to a WHERE clause.

Weakness

The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.

Affected Software

Name Vendor Start Version End Version
Mariadb Mariadb * 10.2.39 (excluding)
Mariadb Mariadb 10.3.0 (including) 10.3.30 (excluding)
Mariadb Mariadb 10.4.0 (including) 10.4.20 (excluding)
Mariadb Mariadb 10.5.0 (including) 10.5.11 (excluding)
Mariadb Mariadb 10.6.0 (including) 10.6.2 (excluding)

Extended Description

While assertion is good for catching logic errors and reducing the chances of reaching more serious vulnerability conditions, it can still lead to a denial of service. For example, if a server handles multiple simultaneous connections, and an assert() occurs in one single connection that causes all other connections to be dropped, this is a reachable assertion that leads to a denial of service.

Potential Mitigations

References