CVE-2023-21868: Medium severity Oracle MySQL Server vulnerability
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.31 and prior. Easily exploitable 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 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/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 8.0.31 and prior. Easily exploitable 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/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 8.0.32
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-2023-21868.
What component of MySQL Server is affected by this vulnerability?
This vulnerability affects the Server: Optimizer component of MySQL Server.
Which versions of MySQL Server are affected by this vulnerability?
Versions 8.0.31 and prior of MySQL Server are affected by this vulnerability.
How can a low privileged attacker exploit this vulnerability?
A low privileged attacker with network access via multiple protocols can exploit this vulnerability to compromise MySQL Server.
What is the severity rating of this vulnerability?
This vulnerability has a severity rating of medium (6.5).