CVE-2022-21256: Medium severity Oracle MySQL vulnerability
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Group Replication Plugin). Supported versions that are affected are 8.0.27 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/cpujan2022.html#AppendixMSQL
Other sources
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Group Replication Plugin). Supported versions that are affected are 8.0.27 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).
— MITRE
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
redhat/mysqlto a version that resolves this vulnerability.Fixed in 8.0.28
Event History
Frequently Asked Questions
What is the vulnerability ID of this MySQL Server vulnerability?
The vulnerability ID is CVE-2022-21256.
What components of Oracle MySQL are affected by this vulnerability?
The vulnerability affects the Server: Group Replication Plugin component of Oracle MySQL.
Which versions of Oracle MySQL are affected by this vulnerability?
Versions 8.0.27 and prior are affected by this vulnerability.
What is the severity rating of the MySQL Server vulnerability?
The severity rating of the vulnerability is medium (4.9).
How can an attacker exploit this vulnerability?
An attacker with network access via multiple protocols can exploit this vulnerability to compromise the MySQL Server.
Are there any known remediation steps for this vulnerability?
Yes, upgrading to version 8.0.28 of MySQL Server can address this vulnerability.