CVE-2019-2691 Explained : Impact and Mitigation
Learn about CVE-2019-2691, a vulnerability in Oracle MySQL Server allowing attackers to compromise the server, potentially leading to a denial of service situation. Find out about affected versions and mitigation steps.
A security flaw in the Oracle MySQL Server component, affecting versions 8.0.15 and earlier, allows a highly privileged attacker to compromise the server, potentially leading to a denial of service situation.
Understanding CVE-2019-2691
This CVE involves a vulnerability in the MySQL Server component of Oracle MySQL, specifically in the Server: Security: Roles subcomponent.
What is CVE-2019-2691?
The vulnerability in Oracle MySQL Server allows a highly privileged attacker with network access to compromise the server, potentially causing it to hang or crash, resulting in a denial of service situation.
The Impact of CVE-2019-2691
- The vulnerability has a CVSS 3.0 Base Score of 4.9, primarily impacting the availability of the server.
- Successful exploitation can lead to unauthorized actions that disrupt the server's operation.
Technical Details of CVE-2019-2691
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability in the Oracle MySQL Server component allows attackers to compromise the server through network access, potentially causing repeated crashes or hangs.
Affected Systems and Versions
- Product: MySQL Server
- Vendor: Oracle Corporation
- Affected Versions: 8.0.15 and prior
Exploitation Mechanism
- Highly privileged attackers with network access can exploit the vulnerability through various protocols.
Mitigation and Prevention
Protecting systems from CVE-2019-2691 is crucial to prevent potential attacks.
Immediate Steps to Take
- Apply security patches provided by Oracle Corporation promptly.
- Monitor network traffic for any suspicious activities.
- Restrict network access to the MySQL Server to authorized personnel only.
Long-Term Security Practices
- Regularly update and patch the MySQL Server to address known vulnerabilities.
- Implement strong access controls and authentication mechanisms.
Patching and Updates
- Stay informed about security advisories and updates from Oracle Corporation.
- Regularly check for patches and updates to secure the MySQL Server.