CVE-2018-2766 Explained : Impact and Mitigation
Learn about CVE-2018-2766, a vulnerability in MySQL Server component of Oracle MySQL, allowing high privileged attackers to compromise the server. Find out the impacted versions and mitigation steps.
A vulnerability has been identified in the MySQL Server component of Oracle MySQL, affecting versions 5.6.39 and earlier, as well as 5.7.21 and earlier. This vulnerability allows a high privileged attacker with network access to compromise the MySQL Server, potentially leading to a denial of service.
Understanding CVE-2018-2766
This CVE pertains to a vulnerability in the MySQL Server component of Oracle MySQL, specifically in the InnoDB subcomponent.
What is CVE-2018-2766?
The vulnerability in MySQL Server allows a high privileged attacker with network access to compromise the server, potentially causing a denial of service.
The Impact of CVE-2018-2766
The vulnerability can be exploited by a high privileged attacker with network access through multiple protocols to compromise the MySQL Server. If successfully attacked, it can lead to the server hanging or crashing repeatedly, resulting in a complete denial of service. The CVSS 3.0 Base Score is 4.9, with the main impact on availability.
Technical Details of CVE-2018-2766
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability in MySQL Server allows a high privileged attacker with network access to compromise the server, potentially causing a denial of service.
Affected Systems and Versions
- Product: MySQL Server
- Vendor: Oracle Corporation
- Affected Versions: 5.6.39 and prior, 5.7.21 and prior
Exploitation Mechanism
The vulnerability can be exploited by a high privileged attacker with network access through multiple protocols to compromise the MySQL Server.
Mitigation and Prevention
Protecting systems from CVE-2018-2766 is crucial to maintaining security.
Immediate Steps to Take
- Apply patches provided by Oracle Corporation promptly.
- 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 address known vulnerabilities.
- Implement network segmentation to limit the impact of potential attacks.
Patching and Updates
Ensure that the MySQL Server is regularly updated with the latest patches and security updates to mitigate the risk of exploitation.