CVE-2021-2217 : Vulnerability Insights and Analysis

A vulnerability has been identified in the MySQL Server product of Oracle MySQL, specifically in the Server's Stored Procedure component. This vulnerability affects versions 8.0.23 and prior, allowing a high privileged attacker with network access to compromise the MySQL Server. Successful exploitation can lead to a denial of service (DOS) by causing the server to hang or crash repeatedly.

Understanding CVE-2021-2217

This section dives into the details of the CVE-2021-2217 vulnerability.

What is CVE-2021-2217?

The vulnerability in the MySQL Server product of Oracle MySQL allows a high privileged attacker to compromise the server, leading to a denial of service. It is classified with a CVSS 3.1 Base Score of 4.9, indicating medium severity with high availability impact.

The Impact of CVE-2021-2217

Successful exploitation of this vulnerability can result in unauthorized access to cause the MySQL Server to hang or crash, impacting the availability of services.

Technical Details of CVE-2021-2217

This section provides technical insights into CVE-2021-2217.

Vulnerability Description

The vulnerability allows attackers with network access to compromise the MySQL Server, leading to a complete denial of service.

Affected Systems and Versions

The vulnerability affects MySQL Server versions 8.0.23 and prior.

Exploitation Mechanism

Attackers can exploit this vulnerability via multiple protocols to compromise the MySQL Server.

Mitigation and Prevention

Here, we discuss the steps to mitigate and prevent CVE-2021-2217.

Immediate Steps to Take

It is recommended to apply security patches provided by Oracle to address this vulnerability and prevent exploitation.

Long-Term Security Practices

Maintain updated versions of MySQL Server and follow security best practices to enhance overall security posture.

Patching and Updates

Regularly check for security updates and apply patches promptly to protect against known vulnerabilities.