CVE-2023-21865: Medium severity Oracle MySQL Server vulnerability
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.30 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: Server: Optimizer). Supported versions that are affected are 8.0.30 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
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
redhat/mysqlto a version that resolves this vulnerability.Fixed in 8.0.31
Event History
Frequently Asked Questions
What is the vulnerability ID for this MySQL Server vulnerability?
The vulnerability ID for this MySQL Server vulnerability is CVE-2023-21865.
What component of Oracle MySQL is affected by this vulnerability?
This vulnerability affects the Server: Optimizer component of Oracle MySQL.
What versions of MySQL Server are affected by this vulnerability?
Versions 8.0.30 and prior of MySQL Server are affected by this vulnerability.
Is this vulnerability easily exploitable?
Yes, this vulnerability is easily exploitable by a high privileged attacker with network access via multiple protocols.
How can this vulnerability compromise MySQL Server?
This vulnerability can compromise MySQL Server by allowing a high privileged attacker to compromise the server.
What is the severity of this vulnerability?
The severity of this vulnerability is medium with a CVSS score of 4.9.
Where can I find more information about this vulnerability?
You can find more information about this vulnerability in the Oracle Security Alerts page: https://www.oracle.com/security-alerts/cpujan2023.html