CVE-2021-2193 : Security Advisory and Response

A vulnerability in the MySQL Server component of Oracle MySQL has been identified, impacting versions 8.0.23 and earlier. This vulnerability can be exploited by a high privileged attacker with network access, potentially leading to a denial of service (DOS) attack.

Understanding CVE-2021-2193

This section delves into the details of the CVE-2021-2193 vulnerability.

What is CVE-2021-2193?

The vulnerability in the MySQL Server product of Oracle MySQL affects versions 8.0.23 and prior. It allows a high privileged attacker with network access to compromise MySQL Server, potentially leading to a DOS attack.

The Impact of CVE-2021-2193

Successful exploitation of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash of MySQL Server, leading to availability impacts.

Technical Details of CVE-2021-2193

In this section, we explore the technical aspects of CVE-2021-2193.

Vulnerability Description

The vulnerability allows high privileged attackers with network access to compromise MySQL Server, potentially causing a complete DOS.

Affected Systems and Versions

The vulnerability affects MySQL Server versions 8.0.23 and earlier.

Exploitation Mechanism

Exploitation of this vulnerability can be achieved by a high privileged attacker with network access, via multiple protocols.

Mitigation and Prevention

This section outlines the steps to mitigate and prevent the CVE-2021-2193 vulnerability.

Immediate Steps to Take

Monitor official sources for patches and updates from Oracle Corporation.
Implement network security best practices to reduce the attack surface.

Long-Term Security Practices

Regularly update MySQL Server to the latest secure versions.
Conduct security audits and penetration testing to identify and address vulnerabilities.

Patching and Updates

Apply patches and updates released by Oracle Corporation promptly to address the CVE-2021-2193 vulnerability.