CVE-2018-3143 : Security Advisory and Response

A vulnerability in the InnoDB component of Oracle MySQL Server allows unauthorized access and denial of service attacks.

Understanding CVE-2018-3143

This CVE affects MySQL Server versions 5.6.41 and earlier, 5.7.23 and earlier, and 8.0.12 and earlier.

What is CVE-2018-3143?

The vulnerability in the InnoDB component of Oracle MySQL Server can be exploited by a low privileged attacker with network access to compromise the server.

The Impact of CVE-2018-3143

Successful exploitation can lead to unauthorized access and repeated server crashes, causing denial of service.
CVSS 3.0 Base Score: 6.5 (Availability impact).

Technical Details of CVE-2018-3143

Vulnerability Description

Easily exploitable vulnerability in the InnoDB component of Oracle MySQL Server.

Affected Systems and Versions

MySQL Server 5.6.41 and prior
MySQL Server 5.7.23 and prior
MySQL Server 8.0.12 and prior

Exploitation Mechanism

Low privileged attacker with network access can compromise the MySQL Server.

Mitigation and Prevention

Immediate Steps to Take

Apply vendor patches and updates promptly.
Restrict network access to the MySQL Server.
Monitor for unauthorized access attempts.

Long-Term Security Practices

Regularly update and patch MySQL Server.
Implement network segmentation to limit access.
Conduct security training for staff.

Patching and Updates

Oracle, Red Hat, Debian, Ubuntu, and Gentoo have released advisories and patches for this vulnerability.