CVE-2019-2966 Explained : Impact and Mitigation
Learn about CVE-2019-2966, a vulnerability in Oracle MySQL Server allowing unauthorized actions by attackers, potentially leading to a denial of service. Find mitigation steps and affected versions here.
A vulnerability in the Oracle MySQL Server product, affecting versions 8.0.17 and earlier, allows a low privileged attacker to compromise the server through network access, potentially leading to a denial of service.
Understanding CVE-2019-2966
This CVE identifies a vulnerability in the MySQL Server product of Oracle MySQL, specifically in the Optimizer component.
What is CVE-2019-2966?
The vulnerability in Oracle MySQL Server allows unauthorized actions by attackers, potentially causing the server to hang or crash, resulting in a denial of service. It has a CVSS 3.0 Base Score of 6.5, impacting availability.
The Impact of CVE-2019-2966
- Low privileged attackers with network access can exploit the vulnerability
- Unauthorized actions can lead to server hang or continuous crashing
- Denial of service can occur due to successful attacks
Technical Details of CVE-2019-2966
This section provides technical details about the vulnerability.
Vulnerability Description
The vulnerability in the Optimizer component of MySQL Server allows attackers to compromise the server through network access.
Affected Systems and Versions
- Product: MySQL Server
- Vendor: Oracle Corporation
- Versions affected: 8.0.17 and prior
Exploitation Mechanism
Attackers with low privileges and network access can exploit the vulnerability through various protocols to compromise the MySQL Server.
Mitigation and Prevention
Protecting systems from CVE-2019-2966 is crucial to prevent potential attacks.
Immediate Steps to Take
- Apply security patches provided by Oracle Corporation
- Monitor network traffic for any suspicious activities
- Restrict network access to the MySQL Server
Long-Term Security Practices
- Regularly update and patch MySQL Server to the latest version
- Implement network segmentation to limit access to critical servers
- Conduct regular security audits and assessments
Patching and Updates
- Stay informed about security advisories from Oracle Corporation
- Promptly apply patches and updates to the MySQL Server