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Vulnerability DatabaseCVE-2021-35645

CVE-2021-35645: 
MySQL vulnerability analysis and mitigation

Overview

CVE-2021-35645 is a security vulnerability affecting MySQL Server versions 8.0.26 and prior. This vulnerability is specifically related to the MySQL Server Optimizer component and was disclosed in October 2021 as part of Oracle's Critical Patch Update (Oracle CPU).

Technical details

The vulnerability is classified as an Optimizer unspecified vulnerability in MySQL Server. It has a CVSS v3.1 base score of 4.9 (MEDIUM), with the following vector: AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H. This indicates that the vulnerability is network accessible, requires high privileges to exploit, needs no user interaction, and can potentially impact system availability (NetApp Advisory).

Impact

Successful exploitation of this vulnerability could allow a high-privileged attacker to cause a denial of service (DoS) condition, potentially resulting in a hang or frequently repeatable crash of the MySQL Server (NetApp Advisory).

Mitigation and workarounds

Oracle has released patches to address this vulnerability in MySQL version 8.0.27. Users are strongly recommended to update their MySQL installations to this version or later. The fix is included in Oracle's October 2021 Critical Patch Update (Oracle CPU, Ubuntu Notice).

Additional resources

Source: This report was generated using AI

Related MySQL vulnerabilities:

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Has fix

Published date

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