CVE-2020-14540 : What You Need to Know
Learn about CVE-2020-14540, a vulnerability in Oracle MySQL Server that allows attackers to compromise the server, potentially leading to a denial of service (DOS) attack. Find out about affected versions and mitigation steps.
A vulnerability in Oracle MySQL Server allows a high privileged attacker to compromise the server, potentially leading to a denial of service (DOS) attack.
Understanding CVE-2020-14540
This CVE involves a vulnerability in MySQL Server that could be exploited by an attacker with network access to compromise the server.
What is CVE-2020-14540?
The vulnerability in Oracle MySQL Server allows a high privileged attacker to compromise the server, potentially resulting in a DOS attack. The affected versions are 5.7.30 and prior, as well as 8.0.20 and prior.
The Impact of CVE-2020-14540
Successful exploitation of this vulnerability can lead to unauthorized actions that may cause the MySQL Server to hang or crash, resulting in a denial of service situation. The CVSS 3.1 Base Score is 4.9, indicating a medium severity vulnerability with high availability impact.
Technical Details of CVE-2020-14540
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 leading to a DOS attack.
Affected Systems and Versions
- Product: MySQL Server
- Vendor: Oracle Corporation
- Affected Versions: 5.7.30 and prior, 8.0.20 and prior
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: High
- User Interaction: None
- Scope: Unchanged
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High
Mitigation and Prevention
To address CVE-2020-14540, consider the following mitigation strategies:
Immediate Steps to Take
- Apply vendor patches promptly
- Monitor network traffic for signs of exploitation
- Restrict network access to vulnerable systems
Long-Term Security Practices
- Regularly update and patch software
- Conduct security assessments and audits
- Implement network segmentation and access controls
Patching and Updates
Ensure that you apply the latest patches and updates provided by Oracle Corporation to mitigate the vulnerability effectively.