CVE-2022-21339: Medium severity Oracle MySQL vulnerability
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). 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: Optimizer). 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 of this MySQL Server vulnerability is CVE-2022-21339.
What is the affected component of the MySQL Server vulnerability?
The affected component of the MySQL Server vulnerability is Server: Optimizer.
What versions of MySQL Server are affected by this vulnerability?
Versions 8.0.27 and prior of MySQL Server are affected by this vulnerability.
What is the severity rating of this MySQL Server vulnerability?
The severity rating of this MySQL Server vulnerability is medium, with a severity value of 4.9.
How can an attacker exploit this MySQL Server vulnerability?
An attacker with high privileges and network access via multiple protocols can exploit this vulnerability to compromise MySQL Server.
How can I fix the MySQL Server vulnerability?
To fix the MySQL Server vulnerability, update to version 8.0.28 or later.