CVE-2020-14837 : Vulnerability Insights and Analysis

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-2020-14837

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-2020-14837?

The vulnerability in Oracle 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-2020-14837

Successful exploitation of this vulnerability can result in unauthorized access, leading to a hang or frequently repeatable crash of the MySQL Server. The CVSS 3.1 Base Score is 4.9, with a focus on availability impacts.

Technical Details of CVE-2020-14837

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 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: High
User Interaction: None
Availability Impact: High
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Mitigation and Prevention

To address CVE-2020-14837, 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 impact of potential attacks
Conduct regular security assessments and audits

Patching and Updates

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