CVE-2020-3987 Information disclosure in VMware Workstation and Horizon Client for Windows

Medium 6.1 Published 16 Sep 2020 Updated 4 Aug 2024

A malicious actor with VM access can exploit an out-of-bounds read to leak memory or cause denial of service in VMware Workstation or Horizon Client.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-3987?

CVE-2020-3987 is a medium-severity vulnerability in VMware Workstation and Horizon Client for Windows, published on 16 Sep 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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 (EMR STRETCHDIBITS parser). A malicious actor with normal access to a virtual machine may be able to exploit these issues to create a partial denial-of-service condition or to leak memory from TPView process running on the system where Workstation or Horizon Client for Windows is installed.

Weakness: CWE-125

Which versions are affected by CVE-2020-3987?

It affects 3 products.

Products include Vmware Horizon Client, Vmware Workstation Player, Vmware Workstation Pro.

How do I fix CVE-2020-3987?

No fix has been published for CVE-2020-3987 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-3987 being exploited?

There is no known exploitation of CVE-2020-3987 in the wild and no public exploit code.

Sources

Also known as GHSA-33qq-wfvm-3749.