CVE-2022-21254: 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. Difficult to exploit vulnerability allows low 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. Difficult to exploit vulnerability allows low 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 5.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/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 CVE-2022-21254?
CVE-2022-21254 is a vulnerability in the MySQL Server product of Oracle MySQL, specifically in the Server Optimizer component.
Which versions of MySQL Server are affected by CVE-2022-21254?
The affected versions are 8.0.27 and prior.
How can a low privileged attacker exploit CVE-2022-21254?
A low privileged attacker with network access via multiple protocols can compromise the MySQL Server.
What is the severity of CVE-2022-21254?
The severity of CVE-2022-21254 is medium, with a CVSS severity score of 5.3.
How can I fix CVE-2022-21254?
To fix CVE-2022-21254, you should upgrade your MySQL Server to version 8.0.28.