CVE-2018-3186 Explained : Impact and Mitigation
Learn about CVE-2018-3186, a vulnerability in Oracle MySQL Server versions 8.0.12 and earlier. Understand the impact, affected systems, exploitation mechanism, and mitigation steps.
A vulnerability in the Oracle MySQL server component known as Server: Optimizer affecting versions 8.0.12 and earlier can lead to unauthorized manipulation of the MySQL Server, potentially causing denial-of-service situations.
Understanding CVE-2018-3186
This CVE involves a vulnerability in the MySQL Server component of Oracle MySQL, impacting versions 8.0.12 and prior.
What is CVE-2018-3186?
The vulnerability allows a highly privileged attacker with network access to compromise the MySQL Server through various protocols, potentially leading to unauthorized manipulation and denial-of-service scenarios.
The Impact of CVE-2018-3186
If exploited, this vulnerability can result in unauthorized manipulation of the MySQL Server, causing frequent crashes or hangs that can lead to denial-of-service situations. The Common Vulnerability Scoring System (CVSS) 3.0 has assigned a base score of 4.9 to this vulnerability, indicating its impact on availability.
Technical Details of CVE-2018-3186
This section provides technical details about the vulnerability.
Vulnerability Description
The vulnerability in the Oracle MySQL server component, Server: Optimizer, affects versions 8.0.12 and earlier. It allows a highly privileged attacker with network access to compromise the MySQL Server.
Affected Systems and Versions
- Product: MySQL Server
- Vendor: Oracle Corporation
- Versions Affected: 8.0.12 and prior
Exploitation Mechanism
- Highly privileged attacker with network access can exploit the vulnerability through various protocols.
Mitigation and Prevention
Protecting systems from CVE-2018-3186 is crucial to prevent unauthorized access and denial-of-service situations.
Immediate Steps to Take
- Apply security patches provided by Oracle promptly.
- Monitor network traffic for any suspicious activities.
- 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 the impact of potential attacks.
Patching and Updates
- Stay informed about security advisories from Oracle and apply patches as soon as they are released.