CVE-2020-3965 : What You Need to Know

VMware ESXi, Workstation, and Fusion products are affected by an information leak vulnerability in the XHCI USB controller, potentially allowing unauthorized access to privileged information.

Understanding CVE-2020-3965

This CVE identifies an information leak vulnerability in VMware products.

What is CVE-2020-3965?

CVE-2020-3965 is an information leak vulnerability affecting VMware ESXi, Workstation, and Fusion products. It allows a local attacker to access privileged information from a virtual machine.

The Impact of CVE-2020-3965

The vulnerability could be exploited by a malicious actor with local access to a virtual machine to read sensitive data from the hypervisor memory.

Technical Details of CVE-2020-3965

This section provides technical details of the vulnerability.

Vulnerability Description

The XHCI USB controller in VMware ESXi, Workstation, and Fusion products is susceptible to an information leak, enabling unauthorized access to privileged data.

Affected Systems and Versions

VMware ESXi 7.0 before ESXi_7.0.0-1.20.16321839, 6.7 before ESXi670-202006401-SG, 6.5 before ESXi650-202005401-SG
Workstation 15.x before 15.5.2
Fusion 11.x before 11.5.2

Exploitation Mechanism

A local attacker with access to a virtual machine can exploit the XHCI USB controller vulnerability to extract sensitive information from the hypervisor memory.

Mitigation and Prevention

Protect your systems from CVE-2020-3965 with the following measures:

Immediate Steps to Take

Apply the necessary security patches provided by VMware.
Monitor and restrict access to virtual machines to authorized personnel only.

Long-Term Security Practices

Regularly update and patch VMware products to mitigate known vulnerabilities.
Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

Ensure timely installation of security updates and patches released by VMware to address the CVE-2020-3965 vulnerability.