CVE-2019-0690 : What You Need to Know

A denial of service vulnerability exists in the Microsoft Hyper-V Network Switch on a host server due to inadequate input validation from a privileged user on a guest operating system. Referred to as the 'Windows Hyper-V Denial of Service Vulnerability', this CVE is distinct from CVE-2019-0695 and CVE-2019-0701.

Understanding CVE-2019-0690

This CVE involves a denial of service vulnerability in the Microsoft Hyper-V Network Switch.

What is CVE-2019-0690?

The vulnerability arises from insufficient validation of input from a privileged user on a guest operating system.

The Impact of CVE-2019-0690

The vulnerability can lead to denial of service attacks on the host server running the Microsoft Hyper-V Network Switch.

Technical Details of CVE-2019-0690

This section provides technical details about the vulnerability.

Vulnerability Description

The vulnerability is observed in the Microsoft Hyper-V Network Switch due to inadequate input validation.

Affected Systems and Versions

Windows
7 for x64-based Systems Service Pack 1
8.1 for x64-based systems
10 for x64-based Systems
10 Version 1607 for x64-based Systems
10 Version 1703 for x64-based Systems
10 Version 1709 for x64-based Systems
10 Version 1803 for x64-based Systems
10 Version 1809 for x64-based Systems
Windows Server
2008 R2 for x64-based Systems Service Pack 1 (Core installation)
2008 R2 for x64-based Systems Service Pack 1
2012
2012 (Core installation)
2012 R2
2012 R2 (Core installation)
2016
2016 (Core installation)
Version 1709 (Core Installation)
Version 1803 (Core Installation)
2019
2019 (Core installation)
2008 for x64-based Systems Service Pack 2
2008 for x64-based Systems Service Pack 2 (Core installation)

Exploitation Mechanism

The vulnerability can be exploited by a privileged user on a guest operating system to launch denial of service attacks on the host server.

Mitigation and Prevention

Steps to address and prevent the CVE-2019-0690 vulnerability.

Immediate Steps to Take

Apply security updates provided by Microsoft.
Implement network segmentation to limit the impact of potential attacks.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update and patch systems to protect against known vulnerabilities.
Conduct security training for users to recognize and report suspicious activities.

Patching and Updates

Install the latest security updates and patches released by Microsoft to address the vulnerability.