CVE-2023-21871: Medium severity Oracle MySQL Server vulnerability

Published Jan 17, 2023
·
Updated

Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 8.0.31 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

Other sources

Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 8.0.31 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.

External References:

https://www.oracle.com/security-alerts/cpujan2023.html#AppendixMSQL

— Red Hat

Affected Software

2 affected componentsFixes available
Oracle MySQL Server>=8.0.0<=8.0.31
redhat/mysql<8.0.32
8.0.32

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/mysql to a version that resolves this vulnerability.

    Fixed in 8.0.32

Event History

Jan 17, 2023
CVE Published
via MITRE·11:35 PM
Data Sourced
via MITRE·11:35 PM
DescriptionSeverity
Jan 19, 2023
Data Sourced
via Red Hat·09:23 AM
DescriptionSeverityAffected Software

Frequently Asked Questions

1

What is the vulnerability ID for this MySQL Server vulnerability?

The vulnerability ID for this MySQL Server vulnerability is CVE-2023-21871.

2

What component of Oracle MySQL is affected by this vulnerability?

This vulnerability affects the InnoDB component of Oracle MySQL.

3

Which versions of Oracle MySQL are affected by this vulnerability?

Versions 8.0.31 and prior of Oracle MySQL are affected by this vulnerability.

4

How can an attacker exploit this vulnerability?

An attacker with high privileges and network access via multiple protocols can exploit this vulnerability to compromise MySQL Server.

5

What is the severity of this vulnerability?

The severity of this vulnerability is medium, with a CVSS score of 4.9.

6

Where can I find more information about this vulnerability?

You can find more information about this vulnerability in the Oracle Security Alerts webpage: https://www.oracle.com/security-alerts/cpujan2023.html

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