CVE-2021-21987 Information disclosure in VMware Workstation Pro / Player (Workstation), VMware Horizon Client for Windows
A malicious actor with VM access can exploit an out-of-bounds read in the Cortado ThinPrint component to disclose information from the host system.
- 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-2021-21987?
CVE-2021-21987 is a medium-severity vulnerability in Vmware Workstation, published on 24 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
VMware Workstation (16.x prior to 16.1.2) and Horizon Client for Windows (5.x prior to 5.5.2) contain out-of-bounds read vulnerability in the Cortado ThinPrint component (TTC Parser). A malicious actor with access to a virtual machine or remote desktop may be able to exploit these issues leading to information disclosure from the TPView process running on the system where Workstation or Horizon Client for Windows is installed.
Weakness: CWE-125
Which versions are affected by CVE-2021-21987?
It affects 2 products.
Products include Vmware Horizon Client, Vmware Workstation.
How do I fix CVE-2021-21987?
No fix has been published for CVE-2021-21987 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-21987 being exploited?
There is no known exploitation of CVE-2021-21987 in the wild and no public exploit code.
Other vulnerabilities in Vmware Workstation
- CVE-2020-3961 Privilege escalation in VMware Horizon Client for Windows
- CVE-2019-5543 Privilege escalation in VMware Horizon Client for Windows
- CVE-2018-6964 Privilege escalation in Horizon Client for Linux
- CVE-2020-3991 Path traversal in VMware Horizon Client for Windows
- CVE-2021-21988 Information disclosure in VMware Workstation Pro / Player (Workstation), VMware Horizon Client for Windows
Sources
Also known as GHSA-m89p-32x5-v23r.