CVE-2021-2298 : Security Advisory and Response

A vulnerability has been identified in the MySQL Server product of Oracle MySQL, specifically in the Server Optimizer component. The affected versions include 8.0.23 and prior, posing a risk of compromise by a low privileged attacker with network access.

Understanding CVE-2021-2298

This section delves into the details of the CVE-2021-2298 vulnerability in Oracle MySQL.

What is CVE-2021-2298?

The CVE-2021-2298 vulnerability pertains to the MySQL Server product of Oracle MySQL, where versions 8.0.23 and earlier are susceptible. It allows a low privileged attacker with network access to compromise the MySQL Server, potentially leading to a Denial of Service (DOS) attack.

The Impact of CVE-2021-2298

Successful exploitation of this vulnerability can grant unauthorized individuals the ability to disrupt the normal operation of MySQL Server, causing it to hang or crash repeatedly, resulting in a complete denial of service.

Technical Details of CVE-2021-2298

This section provides a closer look at the technical aspects of CVE-2021-2298.

Vulnerability Description

The vulnerability in Oracle MySQL's Server Optimizer component allows low privileged attackers to exploit it via multiple protocols. The susceptibility of versions 8.0.23 and earlier opens avenues for compromising MySQL Server.

Affected Systems and Versions

Oracle MySQL versions 8.0.23 and prior are impacted by this vulnerability, potentially putting instances with these versions at risk of exploitation.

Exploitation Mechanism

Exploitation of CVE-2021-2298 involves a low privileged attacker with network access utilizing various protocols to compromise the MySQL Server, leading to severe consequences.

Mitigation and Prevention

Learn about the measures to mitigate and prevent CVE-2021-2298 in Oracle MySQL.

Immediate Steps to Take

Immediate actions such as updating to a secure version and restricting network access can mitigate the risk posed by CVE-2021-2298.

Long-Term Security Practices

Implementing robust security practices, including regular security assessments and training, can help fortify systems against similar vulnerabilities.

Patching and Updates

Regularly applying security patches released by Oracle Corporation for MySQL Server can address vulnerabilities like CVE-2021-2298.