CVE-2021-2061 Explained : Impact and Mitigation

A vulnerability has been identified in the MySQL Server product of Oracle MySQL that could allow a high privileged attacker to compromise the server. Here's what you need to know about CVE-2021-2061.

Understanding CVE-2021-2061

This section will cover what CVE-2021-2061 is, its impact, technical details, and how to mitigate and prevent it.

What is CVE-2021-2061?

The vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DDL) affects versions 8.0.22 and prior. It allows a high privileged attacker with network access via multiple protocols to compromise MySQL Server, potentially leading to a complete denial of service (DOS) attack.

The Impact of CVE-2021-2061

Successful exploitation of this vulnerability can result in the unauthorized ability to cause a hang or frequently repeatable crash of MySQL Server. The CVSS 3.1 Base Score for this vulnerability is 4.4, with a focus on availability impacts.

Technical Details of CVE-2021-2061

Let's dive deeper into the technical aspects of CVE-2021-2061, including the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The difficulty in exploiting this vulnerability allows a high privileged attacker to compromise MySQL Server, potentially leading to a complete denial of service attack.

Affected Systems and Versions

The vulnerability affects versions 8.0.22 and prior of the MySQL Server product by Oracle Corporation.

Exploitation Mechanism

The vulnerability can be exploited by a high privileged attacker with network access through multiple protocols to compromise the MySQL Server.

Mitigation and Prevention

Discover how to protect your systems from CVE-2021-2061 by following some immediate steps and implementing long-term security practices.

Immediate Steps to Take

Immediately update your MySQL Server to a secure version and apply patches provided by Oracle to mitigate the vulnerability.

Long-Term Security Practices

It is recommended to enhance network security measures and restrict network access to prevent unauthorized exploitation of the vulnerability.

Patching and Updates

Regularly check for security updates from Oracle Corporation and apply patches as soon as they are available to ensure system security.