CVE-2020-2763 : Security Advisory and Response

A vulnerability in Oracle MySQL Server allows a high privileged attacker to compromise the server, potentially leading to a denial of service (DOS) attack.

Understanding CVE-2020-2763

This CVE involves a vulnerability in MySQL Server that could be exploited by an attacker with network access to compromise the server.

What is CVE-2020-2763?

The vulnerability in MySQL Server allows a high privileged attacker to compromise the server, potentially resulting in a DOS attack. The affected versions include 5.6.47 and prior, 5.7.29 and prior, and 8.0.19 and prior.

The Impact of CVE-2020-2763

Successful exploitation of this vulnerability can lead to unauthorized actions that cause the server to hang or crash, resulting in a denial of service condition. The CVSS 3.0 Base Score is 4.9, indicating a medium severity vulnerability with high availability impact.

Technical Details of CVE-2020-2763

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability in MySQL Server allows a high privileged attacker with network access to compromise the server, potentially leading to a DOS attack.

Affected Systems and Versions

MySQL Server 5.6.47 and prior
MySQL Server 5.7.29 and prior
MySQL Server 8.0.19 and prior

Exploitation Mechanism

The vulnerability can be exploited by an attacker with network access via multiple protocols to compromise the MySQL Server.

Mitigation and Prevention

Protecting systems from CVE-2020-2763 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by Oracle promptly.
Monitor network traffic for any suspicious activities.
Restrict network access to the MySQL Server.

Long-Term Security Practices

Regularly update and patch MySQL Server to address known vulnerabilities.
Implement network segmentation to limit the impact of potential attacks.
Conduct regular security assessments and audits to identify and mitigate risks.

Patching and Updates

Ensure that you regularly check for updates and patches released by Oracle for MySQL Server to address security vulnerabilities.