CVE-2018-2667 : Vulnerability Insights and Analysis

A vulnerability has been identified in the MySQL Server component of Oracle MySQL, specifically in the Optimizer subcomponent. The affected versions are 5.7.20 and earlier. This vulnerability can be exploited by a high privileged attacker with network access through various protocols, potentially compromising the MySQL Server and leading to denial of service.

Understanding CVE-2018-2667

This CVE involves a vulnerability in the MySQL Server component of Oracle MySQL, affecting versions 5.7.20 and prior.

What is CVE-2018-2667?

The vulnerability in the MySQL Server component of Oracle MySQL allows a high privileged attacker with network access to compromise the server, potentially causing a denial of service.

The Impact of CVE-2018-2667

Successful exploitation can lead to unauthorized actions causing the server to hang or crash frequently, resulting in a complete denial of service.
The CVSS 3.0 Base Score for this vulnerability is 4.9, focusing on availability impacts.

Technical Details of CVE-2018-2667

This section provides technical details of the CVE.

Vulnerability Description

The vulnerability allows a high privileged attacker with network access to compromise the MySQL Server, potentially leading to a denial of service.

Affected Systems and Versions

Product: MySQL Server
Vendor: Oracle Corporation
Affected Versions: 5.7.20 and prior

Exploitation Mechanism

The vulnerability can be exploited by a high privileged attacker with network access through various protocols.

Mitigation and Prevention

Protecting systems from CVE-2018-2667 is crucial to prevent potential exploitation and service disruptions.

Immediate Steps to Take

Apply security patches provided by Oracle Corporation promptly.
Monitor network traffic for any suspicious activity.
Restrict network access to the MySQL Server to authorized users only.

Long-Term Security Practices

Regularly update and patch MySQL Server to address known vulnerabilities.
Implement network segmentation to limit access to critical servers.

Patching and Updates

Stay informed about security advisories and updates from Oracle Corporation.
Regularly check for patches and updates to the MySQL Server to address security vulnerabilities.