CVE-2019-2802 : Vulnerability Insights and Analysis

A vulnerability has been identified in the MySQL Server component of Oracle MySQL, affecting versions 8.0.16 and earlier. This vulnerability can be exploited by a highly privileged attacker with network access, potentially leading to a denial of service situation.

Understanding CVE-2019-2802

This CVE pertains to a vulnerability in the MySQL Server component of Oracle MySQL, specifically in the Server: Optimizer subcomponent.

What is CVE-2019-2802?

The vulnerability in MySQL Server allows a highly privileged attacker with network access to compromise the server, potentially causing it to hang or crash, resulting in a denial of service situation.

The Impact of CVE-2019-2802

Successful exploitation by an attacker can lead to unauthorized ability to cause the server to hang or crash frequently, resulting in a complete denial of service (DOS) situation.
The CVSS 3.0 Base Score for this vulnerability is 4.9, with availability impacts.

Technical Details of CVE-2019-2802

This section provides technical details about the vulnerability.

Vulnerability Description

The vulnerability in the MySQL Server component of Oracle MySQL allows a highly privileged attacker with network access to compromise the server, potentially leading to a denial of service situation.

Affected Systems and Versions

Product: MySQL Server
Vendor: Oracle Corporation
Versions Affected: 8.0.16 and prior

Exploitation Mechanism

The vulnerability can be easily exploited by a highly privileged attacker who has network access through various protocols, potentially compromising the MySQL Server.

Mitigation and Prevention

To address CVE-2019-2802, follow these mitigation and prevention steps:

Immediate Steps to Take

Apply security patches provided by Oracle Corporation.
Restrict network access to the MySQL Server to only authorized users.
Monitor server logs for any suspicious activities.

Long-Term Security Practices

Regularly update and patch the MySQL Server to the latest version.
Implement network segmentation to limit access to critical servers.
Conduct regular security audits and penetration testing.

Patching and Updates

Stay informed about security advisories from Oracle Corporation.
Apply patches promptly to ensure the server is protected against known vulnerabilities.