CVE-2018-2758 : Security Advisory and Response

Oracle MySQL Server component has a vulnerability in the Server : Security : Privileges subcomponent, affecting versions 5.6.39 and earlier, as well as 5.7.21 and earlier. This vulnerability can be exploited by a low privileged attacker with network access, potentially leading to a denial-of-service situation.

Understanding CVE-2018-2758

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

What is CVE-2018-2758?

CVE-2018-2758 is a vulnerability in the MySQL Server component of Oracle MySQL, specifically in the Server : Security : Privileges subcomponent. It impacts versions 5.6.39 and prior, as well as 5.7.21 and prior. The vulnerability allows a low privileged attacker with network access to compromise the MySQL Server.

The Impact of CVE-2018-2758

Successful exploitation can lead to unauthorized actions causing the server to hang or crash, resulting in a denial-of-service (DOS) situation.
The CVSS 3.0 Base Score for this vulnerability is 6.5, with availability being the most impacted aspect.

Technical Details of CVE-2018-2758

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows a low privileged attacker with network access to compromise the MySQL Server, potentially causing it to hang or crash, leading to a denial-of-service situation.

Affected Systems and Versions

Product: MySQL Server
Vendor: Oracle Corporation
Versions Affected: 5.6.39 and prior, 5.7.21 and prior

Exploitation Mechanism

The vulnerability can be exploited by a low privileged attacker with network access through multiple protocols, enabling them to compromise the MySQL Server.

Mitigation and Prevention

To address CVE-2018-2758, follow these mitigation and prevention strategies:

Immediate Steps to Take

Apply security patches provided by Oracle Corporation.
Restrict network access to the MySQL Server to trusted entities only.

Long-Term Security Practices

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

Patching and Updates

Stay informed about security advisories and updates from Oracle Corporation.
Promptly apply patches and updates to the MySQL Server to mitigate security risks.