CVE-2019-2455 : What You Need to Know

A security flaw has been identified in the MySQL Server component of Oracle MySQL, affecting versions 5.6.42 and earlier, 5.7.24 and earlier, and 8.0.13 and earlier. This vulnerability can be exploited by a low privileged attacker with network access, potentially leading to a compromise of the MySQL Server.

Understanding CVE-2019-2455

This CVE involves a vulnerability in the MySQL Server component of Oracle MySQL that allows unauthorized access and potential denial-of-service attacks.

What is CVE-2019-2455?

CVE-2019-2455 is a security vulnerability in Oracle MySQL Server that affects versions 5.6.42 and prior, 5.7.24 and prior, and 8.0.13 and prior. It can be exploited by a low privileged attacker with network access through various protocols.

The Impact of CVE-2019-2455

The vulnerability can lead to a compromise of the MySQL Server, potentially causing a denial-of-service (DOS) situation by allowing unauthorized access to crash or hang the server.
The Common Vulnerability Scoring System (CVSS) 3.0 Base Score for this vulnerability is 6.5, indicating its impact on availability.

Technical Details of CVE-2019-2455

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows a low privileged attacker with network access to compromise the MySQL Server, potentially leading to a denial-of-service situation.

Affected Systems and Versions

MySQL Server versions 5.6.42 and prior
MySQL Server versions 5.7.24 and prior
MySQL Server versions 8.0.13 and prior

Exploitation Mechanism

The vulnerability can be exploited by a low privileged attacker with network access through multiple protocols.

Mitigation and Prevention

Protecting systems from CVE-2019-2455 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply patches provided by Oracle Corporation to address the vulnerability.
Monitor network traffic for any suspicious activity targeting MySQL Server.

Long-Term Security Practices

Regularly update MySQL Server to the latest version to mitigate known vulnerabilities.
Implement network segmentation to restrict access to MySQL Server.

Patching and Updates

Oracle Corporation has released patches to fix the vulnerability in affected versions of MySQL Server.