CVE-2019-2740 : What You Need to Know

A vulnerability has been identified in the XML component of Oracle MySQL Server, affecting versions 5.6.44 and earlier, 5.7.26 and earlier, and 8.0.16 and earlier. This vulnerability can be exploited by a low privileged attacker with network access, potentially leading to a denial of service situation.

Understanding CVE-2019-2740

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

What is CVE-2019-2740?

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

The Impact of CVE-2019-2740

Successful exploitation can lead to unauthorized manipulation of the server, impacting its availability.
The CVSS 3.0 Base Score for this vulnerability is 6.5, specifically affecting availability.

Technical Details of CVE-2019-2740

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability in the XML component of Oracle MySQL Server allows unauthorized manipulation of the server, potentially causing it to hang or crash.

Affected Systems and Versions

MySQL Server 5.6.44 and earlier
MySQL Server 5.7.26 and earlier
MySQL Server 8.0.16 and earlier

Exploitation Mechanism

Low privileged attacker with network access can exploit the vulnerability through various protocols.
Successful attacks can lead to a denial of service situation.

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 Corporation promptly.
Restrict network access to the MySQL Server to trusted entities only.
Monitor server logs for any suspicious activities.

Long-Term Security Practices

Regularly update and patch the MySQL Server to mitigate known vulnerabilities.
Implement network segmentation to limit the exposure of critical servers.
Conduct regular security assessments and penetration testing.

Patching and Updates

Stay informed about security advisories and updates from Oracle Corporation.
Ensure timely application of patches to secure the MySQL Server.