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Vulnerability DatabaseCVE-2022-21437

CVE-2022-21437: 
MySQL vulnerability analysis and mitigation

Overview

CVE-2022-21437 is a vulnerability in the MySQL Server product of Oracle MySQL, specifically affecting the Server: Optimizer component. The vulnerability affects MySQL versions 8.0.28 and prior. It was disclosed as part of Oracle's Critical Patch Update in April 2022 (Oracle CPU).

Technical details

This is an easily exploitable vulnerability that requires a high-privileged attacker with network access via multiple protocols to compromise MySQL Server. The vulnerability has been assigned a CVSS 3.1 Base Score of 4.9 (Medium) with the vector string: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H (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. The vulnerability affects the availability of the system while not impacting confidentiality or integrity (Oracle CPU).

Mitigation and workarounds

Oracle has released patches for this vulnerability in versions after MySQL 8.0.28. Users are strongly recommended to update to the latest version. For systems that cannot be immediately updated, limiting network access to trusted users and implementing strong access controls is recommended (Oracle CPU, NetApp Advisory).

Additional resources

Source: This report was generated using AI

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