CVE-2020-2893 : Security Advisory and Response

A vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB) has been identified, affecting versions 8.0.19 and prior.

Understanding CVE-2020-2893

This CVE involves a vulnerability in MySQL Server that could be exploited by a high-privileged attacker with network access, potentially leading to a denial of service (DOS) attack.

What is CVE-2020-2893?

The vulnerability in MySQL Server allows attackers with network access to compromise the server, potentially causing it to hang or crash, resulting in a complete denial of service. The CVSS 3.0 Base Score for this vulnerability is 4.9, indicating a medium severity level with high availability impact.

The Impact of CVE-2020-2893

Successful exploitation of this vulnerability can grant unauthorized access to disrupt the availability of the MySQL Server, leading to potential service interruptions and crashes.

Technical Details of CVE-2020-2893

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability in MySQL Server allows high-privileged attackers with network access to compromise the server, potentially causing a denial of service by hanging or crashing the server.

Affected Systems and Versions

Product: MySQL Server
Vendor: Oracle Corporation
Versions Affected: 8.0.19 and prior

Exploitation Mechanism

The vulnerability can be exploited by attackers with network access via multiple protocols to compromise the MySQL Server, leading to a complete denial of service.

Mitigation and Prevention

To address CVE-2020-2893, follow these mitigation strategies:

Immediate Steps to Take

Apply the latest security patches provided by Oracle Corporation.
Monitor network traffic for any suspicious activity targeting MySQL Server.

Long-Term Security Practices

Regularly update MySQL Server to the latest versions to patch known vulnerabilities.
Implement network segmentation to limit access to MySQL Server.

Patching and Updates

Ensure timely installation of security patches and updates released by Oracle Corporation to address the vulnerability in MySQL Server.