CVE-2020-14845 : What You Need to Know
Learn about CVE-2020-14845, a vulnerability in Oracle MySQL Server that allows attackers to compromise the server, impacting availability. Find mitigation steps and patching details here.
A vulnerability in Oracle MySQL Server (component: Server: Optimizer) allows a high privileged attacker to compromise the server, affecting versions 8.0.21 and prior.
Understanding CVE-2020-14845
This CVE involves a vulnerability in MySQL Server that can be exploited by an attacker with network access, potentially leading to a denial of service (DOS) attack.
What is CVE-2020-14845?
The vulnerability in MySQL Server allows a high privileged attacker to compromise the server, potentially causing a DOS attack. The affected versions are 8.0.21 and prior.
The Impact of CVE-2020-14845
Successful exploitation of this vulnerability can result in unauthorized access to cause a hang or crash of the MySQL Server, impacting its availability. The CVSS 3.1 Base Score is 4.9, indicating a medium severity vulnerability with high availability impact.
Technical Details of CVE-2020-14845
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
- Versions affected: 8.0.21 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-2020-14845, follow these 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 MySQL Server
- Implement network segmentation to limit the attack surface
- Conduct regular security assessments and audits
Patching and Updates
- Oracle has released patches to address this vulnerability
- Stay informed about security updates and apply them promptly