CVE-2020-14868 : Security Advisory and Response

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-2020-14868

This CVE involves an easily exploitable vulnerability in Oracle MySQL Server that can lead to a complete denial of service (DOS) attack.

What is CVE-2020-14868?

The vulnerability in MySQL Server allows a high privileged attacker with network access to compromise the server. Successful exploitation can result in a DOS attack by causing the server to hang or crash repeatedly.

The Impact of CVE-2020-14868

The vulnerability has a CVSS 3.1 Base Score of 4.9, with a high impact on availability. Attackers can exploit this flaw to disrupt MySQL Server operations.

Technical Details of CVE-2020-14868

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability in Oracle MySQL Server allows attackers with network access to compromise the server, potentially leading to a DOS condition.

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-2020-14868, follow these mitigation strategies:

Immediate Steps to Take

Apply vendor patches 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
Implement network segmentation to limit access
Conduct security training for staff members

Patching and Updates

Ensure that you regularly check for updates and patches from Oracle to address this vulnerability.