CVE-2019-2808 : Security Advisory and Response
Learn about CVE-2019-2808, a vulnerability in Oracle MySQL Server component affecting versions 8.0.16 and earlier. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
A vulnerability has been identified in the Oracle MySQL Server component, affecting versions 8.0.16 and earlier. This vulnerability can be exploited by a highly privileged attacker with network access, potentially leading to a denial of service.
Understanding CVE-2019-2808
This CVE pertains to a vulnerability found in the Oracle MySQL Server component, specifically in the Optimizer subcomponent.
What is CVE-2019-2808?
CVE-2019-2808 is a vulnerability in the MySQL Server component of Oracle MySQL, impacting versions 8.0.16 and prior. It allows a highly privileged attacker with network access to compromise the MySQL Server.
The Impact of CVE-2019-2808
The vulnerability can result in unauthorized actions, such as causing the server to hang or crash repeatedly, leading to a denial of service. It has been assigned a CVSS 3.0 Base Score of 4.9, primarily affecting availability.
Technical Details of CVE-2019-2808
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability in the Optimizer subcomponent of Oracle MySQL Server allows attackers to compromise the server through network access.
Affected Systems and Versions
- Product: MySQL Server
- Vendor: Oracle Corporation
- Versions Affected: 8.0.16 and prior
Exploitation Mechanism
The vulnerability can be exploited by a highly privileged attacker with network access through various protocols, potentially leading to a compromise of the MySQL Server.
Mitigation and Prevention
Protecting systems from CVE-2019-2808 is crucial to maintaining security.
Immediate Steps to Take
- Apply patches and updates provided by Oracle Corporation promptly.
- Restrict network access to the MySQL Server to authorized users only.
- Monitor server logs for any suspicious activities.
Long-Term Security Practices
- Regularly update and patch all software components to prevent vulnerabilities.
- Implement network segmentation to limit the impact of potential attacks.
- Conduct regular security audits and assessments to identify and address any security gaps.
- Educate staff on best security practices to prevent unauthorized access.
Patching and Updates
Ensure that the MySQL Server is updated with the latest patches and security updates to mitigate the risk of exploitation.