Oracle Linux: CVE-2025-21555: ELSA-2025-1671: mysql security update (IMPORTANT) (Multiple Advisories)

Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 8.0.40 and prior, 8.4.3 and prior and 9.1.0 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 as well as unauthorized update, insert or delete access to some of MySQL Server accessible data. CVSS 3.1 Base Score 5.5 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H).
A flaw was found in MySQL Server, specifically in the InnoDB component. This vulnerability allows a high-privileged attacker to cause a denial of service, which causes frequent crashes or hangs and unauthorized modification, such as updating, inserting, or deleting accessible data via multiple network protocols.