CVE-2020-3987 : Vulnerability Insights and Analysis

VMware Workstation (15.x) and Horizon Client for Windows (5.x before 5.4.4) contain an out-of-bounds read vulnerability in Cortado ThinPrint component, potentially leading to denial-of-service or memory leakage.

Understanding CVE-2020-3987

This CVE involves multiple out-of-bounds read issues via Cortado ThinPrint.

What is CVE-2020-3987?

Vulnerability in VMware Workstation and Horizon Client for Windows
Out-of-bounds read vulnerability in Cortado ThinPrint component
Allows a malicious actor to create a partial denial-of-service or leak memory

The Impact of CVE-2020-3987

Normal access to a virtual machine can be exploited
Potential for denial-of-service conditions or memory leakage

Technical Details of CVE-2020-3987

This section provides more technical insights into the vulnerability.

Vulnerability Description

Out-of-bounds read vulnerability in Cortado ThinPrint component (EMR STRETCHDIBITS parser)

Affected Systems and Versions

VMware Workstation (15.x)
Horizon Client for Windows (5.x before 5.4.4)

Exploitation Mechanism

Malicious actor with normal access to a virtual machine can exploit the vulnerability
Exploitation may lead to a partial denial-of-service condition or memory leakage from TPView process

Mitigation and Prevention

Protecting systems from CVE-2020-3987 is crucial for maintaining security.

Immediate Steps to Take

Apply security patches provided by VMware
Monitor for any unusual system behavior
Restrict access to vulnerable systems

Long-Term Security Practices

Regularly update software and security patches
Conduct security audits and vulnerability assessments
Educate users on safe computing practices

Patching and Updates

Ensure all affected systems are updated with the latest patches
Stay informed about security advisories and updates from VMware