CVE-2020-14846 Explained : Impact and Mitigation
Learn about CVE-2020-14846, a vulnerability in Oracle MySQL Server that allows attackers to compromise the server, potentially leading to a denial of service (DOS) attack. Find out the impacted systems, exploitation mechanism, and mitigation steps.
A vulnerability in Oracle MySQL Server (component: Server: Optimizer) allows attackers to compromise the server, potentially leading to a denial of service (DOS) attack.
Understanding CVE-2020-14846
This CVE involves a vulnerability in MySQL Server that can be exploited by attackers with network access, potentially causing a DOS attack.
What is CVE-2020-14846?
The vulnerability in MySQL Server allows low-privileged attackers to compromise the server, leading to a DOS attack. The affected versions are 8.0.21 and prior.
The Impact of CVE-2020-14846
Successful exploitation of this vulnerability can result in unauthorized access, causing the server to hang or crash, leading to a complete DOS. The CVSS 3.1 Base Score is 6.5, with a high availability impact.
Technical Details of CVE-2020-14846
This section provides technical details about the vulnerability.
Vulnerability Description
The vulnerability in MySQL Server allows attackers with network access to compromise the server, potentially causing a DOS attack.
Affected Systems and Versions
- Product: MySQL Server
- Vendor: Oracle Corporation
- Versions affected: 8.0.21 and prior
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: Low
- User Interaction: None
- Scope: Unchanged
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High
Mitigation and Prevention
Protecting systems from CVE-2020-14846 is crucial to prevent potential attacks.
Immediate Steps to Take
- Apply security patches provided by Oracle 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.
- Conduct regular security assessments and audits to identify and mitigate risks.
Patching and Updates
- Stay informed about security updates and advisories from Oracle.
- Implement a robust patch management process to ensure timely application of security patches.