CVE-2018-2591 Explained : Impact and Mitigation

An issue has been discovered in the MySQL Server component of Oracle MySQL, affecting versions 5.6.38 and earlier, as well as 5.7.19 and earlier. This vulnerability can be exploited by a highly privileged attacker with network access, potentially leading to a denial of service.

Understanding CVE-2018-2591

This CVE pertains to a vulnerability in the MySQL Server component of Oracle MySQL, specifically in the Server: Partition subsection.

What is CVE-2018-2591?

CVE-2018-2591 is a vulnerability in Oracle MySQL Server that allows a highly privileged attacker with network access to compromise the server, potentially causing a denial of service. The vulnerability affects versions 5.6.38 and prior, as well as 5.7.19 and prior.

The Impact of CVE-2018-2591

The vulnerability, with a CVSS 3.0 Base Score of 4.9, primarily impacts system availability. If successfully exploited, it could allow unauthorized capability to induce a hang or repeatable crash, resulting in a complete denial of service of the MySQL Server.

Technical Details of CVE-2018-2591

This section provides more technical insights into the vulnerability.

Vulnerability Description

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

Affected Systems and Versions

Product: MySQL Server
Vendor: Oracle Corporation
Versions Affected: 5.6.38 and prior, 5.7.19 and prior

Exploitation Mechanism

The vulnerability can be exploited by a highly privileged attacker with network access via various protocols to compromise the MySQL Server, potentially causing a denial of service.

Mitigation and Prevention

To address CVE-2018-2591, consider the following mitigation strategies:

Immediate Steps to Take

Apply vendor patches promptly
Restrict network access to the MySQL Server
Monitor for any unauthorized access attempts

Long-Term Security Practices

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

Patching and Updates

Ensure that you regularly check for security updates and patches provided by Oracle Corporation for MySQL Server.