REDHAT-BUG-2557834: Medium severity Oracle MySQL Server vulnerability
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: InnoDB). Supported versions that are affected are MySQL Server: 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1; MySQL Cluster: 8.0.0-8.0.49, 8.4.0-8.4.12, 9.7.0-9.7.3 and 26.7.0-26.7.1. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster. 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).
Affected Software
Event History
Frequently Asked Questions
Who can exploit this issue?
An attacker must have high privileges and network access to the affected MySQL Server or MySQL Cluster instance. No user interaction is required, and the issue is described as easily exploitable over multiple protocols.
What is the likely impact of successful exploitation?
Successful exploitation can cause the affected MySQL Server or MySQL Cluster service to hang or crash repeatedly, resulting in a complete denial of service. The supplied CVSS vector indicates no confidentiality or integrity impact.
Which deployments should be checked?
Check MySQL Server versions 8.4.0 through 8.4.12, 9.7.0 through 9.7.3, and 26.7.0 through 26.7.1. Check MySQL Cluster versions 8.0.0 through 8.0.49, 8.4.0 through 8.4.12, 9.7.0 through 9.7.3, and 26.7.0 through 26.7.1.
How can exposure be reduced if updates cannot be applied immediately?
Restrict network access to the database service and limit high-privileged MySQL or Cluster accounts to trusted administrators, since exploitation requires both network access and high privileges.