VDB-191995 · CVE-2021-46657 · MDEV-25629

MariaDB up to 10.6.1 ORDER BY Query get_sort_by_table denial of service

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic has been found in MariaDB up to 10.6.1. Affected by this issue is the function get_sort_by_table of the component ORDER BY Query Handler. This manipulation causes denial of service. This vulnerability is registered as CVE-2021-46657. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in MariaDB up to 10.6.1 (Database Software). It has been declared as problematic. Affected by this vulnerability is the function get_sort_by_table of the component ORDER BY Query Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability.

The weakness was published 01/30/2022 as MDEV-25629. It is possible to read the advisory at jira.mariadb.org. This vulnerability is known as CVE-2021-46657 since 01/29/2022. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 236627 (Alibaba Cloud Linux 3 : 0034: mariadb:10.5 (ALINUX3-SA-2022:0034)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 10.6.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (236627). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Database Software

Name

MariaDB

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 236627
Nessus Name: Alibaba Cloud Linux 3 : 0034: mariadb:10.5 (ALINUX3-SA-2022:0034)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: MariaDB 10.6.2

Timelineinfo

01/29/2022 🔍
01/30/2022 +1 days 🔍
01/30/2022 +0 days 🔍
05/19/2025 +1205 days 🔍

Sourcesinfo

Advisory: MDEV-25629
Status: Confirmed

CVE: CVE-2021-46657 (🔍)
GCVE (CVE): GCVE-0-2021-46657
GCVE (VulDB): GCVE-100-191995

Entryinfo

Created: 01/30/2022 08:27
Updated: 05/19/2025 23:34
Changes: 01/30/2022 08:27 (41), 02/02/2022 15:36 (1), 05/19/2025 23:34 (16)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.