CVE-2019-2507 : Vulnerability Insights and Analysis

Oracle MySQL Server versions 5.6.42 and prior, 5.7.24 and prior, and 8.0.13 and prior are affected by a vulnerability in the Optimizer subcomponent. This vulnerability can be exploited by a highly privileged attacker with network access, potentially leading to a denial of service situation.

Understanding CVE-2019-2507

This CVE involves a vulnerability in Oracle MySQL's MySQL Server component, impacting specific versions of the software.

What is CVE-2019-2507?

The vulnerability in Oracle MySQL's MySQL Server component affects versions 5.6.42 and earlier, 5.7.24 and earlier, and 8.0.13 and earlier. It can be exploited by a highly privileged attacker with network access through various protocols, enabling them to compromise the MySQL Server.

The Impact of CVE-2019-2507

If successfully exploited, the vulnerability can lead to unauthorized actions that cause the server to hang or crash repeatedly, resulting in a denial of service (DOS) situation. The CVSS 3.0 Base Score rates the impact on availability at 4.9.

Technical Details of CVE-2019-2507

Oracle MySQL Server is affected by a vulnerability in the Optimizer subcomponent.

Vulnerability Description

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

Affected Systems and Versions

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

Exploitation Mechanism

The vulnerability can be exploited by a highly privileged attacker with network access through various protocols, enabling them to compromise the MySQL Server.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of this vulnerability.

Immediate Steps to Take

Apply security patches provided by Oracle 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 to mitigate known vulnerabilities.
Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

Stay informed about security advisories from Oracle and apply patches as soon as they are available.