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Vulnerability DatabaseCVE-2020-2930

CVE-2020-2930: 
MySQL vulnerability analysis and mitigation

Overview

CVE-2020-2930 is a vulnerability discovered in the MySQL Server product of Oracle MySQL, specifically affecting the Server Parser component. The vulnerability affects MySQL versions 8.0.19 and prior. This security issue was disclosed and patched as part of Oracle's April 2020 Critical Patch Update (Oracle CPU).

Technical details

The vulnerability has been assigned a CVSS 3.0 Base Score of 4.4 (Medium severity) with the following vector: CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H. The scoring indicates that the vulnerability requires network access, has high attack complexity, requires high privileges, needs no user interaction, has unchanged scope, and only impacts system availability (NVD).

Impact

A 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 only affects availability with no impact on confidentiality or integrity (Ubuntu Security).

Mitigation and workarounds

The vulnerability has been fixed in MySQL version 8.0.20. Users are advised to upgrade to this version or later. Ubuntu has released fixes in mysql-server-8.0 version 8.0.20-0ubuntu0.20.04.1 for Ubuntu 20.04 and version 8.0.20-0ubuntu0.19.10.1 for Ubuntu 19.10 (Ubuntu USN).

Additional resources

Source: This report was generated using AI

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