CVE-2020-14656
MySQL vulnerability analysis and mitigation

Overview

CVE-2020-14656 affects MySQL Server (component: Server: Locking) versions 8.0.20 and prior. This vulnerability allows high privileged attackers with network access via multiple protocols to compromise MySQL Server (Oracle Advisory, NVD).

Technical details

The vulnerability has a CVSS 3.1 Base Score of 4.9 (Medium) with the following vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H. The attack requires network access and high privileges but is considered easily exploitable (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 (NVD).

Exploitability

The vulnerability is considered easily exploitable by attackers with network access and high privileges. The attack can be conducted via multiple protocols (Oracle Advisory).

Mitigation and workarounds

The vulnerability was fixed in MySQL version 8.0.21. Users should upgrade to this version or later. Ubuntu users can update to mysql-server-8.0 version 8.0.21-0ubuntu0.20.04.3 or later (Ubuntu Advisory).

Additional resources


SourceThis report was generated using AI

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