CVE-2018-3133 : Security Advisory and Response

Oracle MySQL Server has a vulnerability in the Server: Parser subcomponent, affecting versions 5.5.61 and earlier, 5.6.41 and earlier, 5.7.23 and earlier, and 8.0.12 and earlier. This vulnerability allows a low privileged attacker to compromise the server, potentially leading to a denial of service.

Understanding CVE-2018-3133

This CVE involves a vulnerability in Oracle MySQL Server that can be exploited by attackers to compromise the server.

What is CVE-2018-3133?

CVE-2018-3133 is a vulnerability in the MySQL Server component of Oracle MySQL, specifically in the Server: Parser subcomponent. It allows attackers with network access to compromise the server, potentially causing a denial of service.

The Impact of CVE-2018-3133

The vulnerability can be exploited by low privileged attackers through various protocols, leading to a compromise of the MySQL Server. Successful exploitation can result in unauthorized capability to cause a hang or repetitive crashes, impacting the availability of the server.

Technical Details of CVE-2018-3133

Oracle MySQL Server vulnerability details.

Vulnerability Description

The vulnerability in the Server: Parser subcomponent of Oracle MySQL Server allows low privileged attackers with network access to compromise the server, potentially causing a denial of service.

Affected Systems and Versions

MySQL Server 5.5.61 and prior
MySQL Server 5.6.41 and prior
MySQL Server 5.7.23 and prior
MySQL Server 8.0.12 and prior

Exploitation Mechanism

Attackers with network access can exploit this vulnerability through various protocols, leading to a compromise of the MySQL Server and potential denial of service.

Mitigation and Prevention

Protecting systems from CVE-2018-3133.

Immediate Steps to Take

Apply patches provided by Oracle to address the vulnerability.
Monitor network traffic for any suspicious activity.
Restrict network access to the MySQL Server.

Long-Term Security Practices

Regularly update and patch MySQL Server to prevent vulnerabilities.
Implement network segmentation to limit access to critical servers.
Conduct regular security assessments and penetration testing.

Patching and Updates

Ensure that the MySQL Server is updated with the latest patches and security updates to mitigate the CVE-2018-3133 vulnerability.