CVE-2021-2164
MySQL vulnerability analysis and mitigation

Overview

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer) affecting versions 8.0.23 and prior. This vulnerability was disclosed on April 22, 2021, as part of Oracle's Critical Patch Update (Oracle CPU).

Technical details

The vulnerability has a CVSS 3.1 Base Score of 4.9 (Medium severity) with the following vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H. The vulnerability requires high privileges and network access via multiple protocols to exploit (NVD).

Impact

Successful exploitation of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server (Oracle CPU, NVD).

Mitigation and workarounds

Oracle released patches to address this vulnerability in MySQL version 8.0.24. Fedora also released fixes in community-mysql-8.0.24 for versions 32, 33, and 34 (Fedora Updates).

Additional resources


SourceThis report was generated using AI

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