CVE-2023-21912: High severity Oracle MySQL Server vulnerability
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: Privileges). Supported versions that are affected are 5.7.41 and prior and 8.0.30 and prior. Easily exploitable vulnerability allows unauthenticated 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 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
Other sources
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: Privileges). Supported versions that are affected are 5.7.41 and prior and 8.0.30 and prior. Easily exploitable vulnerability allows unauthenticated 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/cpuapr2023.html#AppendixMSQL
— Red Hat
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
ubuntu/mysql-5.7to a version that resolves this vulnerability.Fixed in 5.7.42-0ubuntu0.18.04.1 - Upgrade
Upgrade
ubuntu/mysql-5.7to a version that resolves this vulnerability.Fixed in 5.7.42 - Upgrade
Upgrade
ubuntu/mysql-5.7to a version that resolves this vulnerability.Fixed in 5.7.42-0ubuntu0.16.04.1+ - Upgrade
Upgrade
ubuntu/mysql-8.0to a version that resolves this vulnerability.Fixed in 8.0.31-0ubuntu0.20.04.1 - Upgrade
Upgrade
ubuntu/mysql-8.0to a version that resolves this vulnerability.Fixed in 8.0.31-0ubuntu0.22.04.1 - Upgrade
Upgrade
ubuntu/mysql-8.0to a version that resolves this vulnerability.Fixed in 8.0.31-0ubuntu2 - Upgrade
Upgrade
ubuntu/mysql-8.0to a version that resolves this vulnerability.Fixed in 8.0.31 - Upgrade
Upgrade
debian/mysql-8.0to a version that resolves this vulnerability.Fixed in 8.0.32-1 - Upgrade
Upgrade
redhat/mysqlto a version that resolves this vulnerability.Fixed in 5.7.42 - Upgrade
Upgrade
redhat/mysqlto a version that resolves this vulnerability.Fixed in 8.0.31
Event History
Frequently Asked Questions
What is the severity of CVE-2023-21912?
The severity of CVE-2023-21912 is high.
How does CVE-2023-21912 affect MySQL Server?
CVE-2023-21912 affects the Security: Privileges component of MySQL Server.
Which versions of MySQL Server are affected by CVE-2023-21912?
The versions 5.7.41 and prior and 8.0.30 and prior of MySQL Server are affected by CVE-2023-21912.
How can an attacker exploit CVE-2023-21912?
An unauthenticated attacker with network access via multiple protocols can exploit CVE-2023-21912.
Is there a fix available for CVE-2023-21912?
Yes, the fix for CVE-2023-21912 is available. Update to version 5.7.42-0ubuntu0.18.04.1 or later for MySQL 5.7, or update to version 8.0.31-0ubuntu0.20.04.1 or later for MySQL 8.0.