CVE-2020-14773 : Security Advisory and Response

A vulnerability in Oracle MySQL Server (component: Server: Optimizer) allows a high privileged attacker to compromise the server, leading to a denial of service (DOS) condition.

Understanding CVE-2020-14773

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-2020-14773?

The vulnerability in Oracle MySQL Server allows a high privileged attacker with network access to compromise the server, potentially resulting in a DOS condition.

The Impact of CVE-2020-14773

Successful exploitation of this vulnerability can lead to unauthorized actions causing the MySQL Server to hang or crash, resulting in a complete denial of service.

Technical Details of CVE-2020-14773

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 condition.

Affected Systems and Versions

Product: MySQL Server
Vendor: Oracle Corporation
Affected Versions: 8.0.21 and prior

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: High
Availability Impact: High
CVSS 3.1 Base Score: 4.9 (Medium Severity)
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Mitigation and Prevention

Protecting systems from this vulnerability is crucial to maintaining security.

Immediate Steps to Take

Apply security patches provided by Oracle promptly.
Monitor Oracle's security alerts for updates and advisories.

Long-Term Security Practices

Regularly update and patch MySQL Server to address known vulnerabilities.
Implement network security measures to restrict access to critical servers.

Patching and Updates

Stay informed about security updates and patches released by Oracle for MySQL Server.