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Rewterz Threat Advisory – VMware Workstation Multiple Vulnerabilities

Severity

Low

Analysis Summary

CVE-2021-2198, CVE-2021-21988, and CVE-2021-21989

VMware Workstation and Horizon client for Windows contains multiple out-of-bounds read vulnerabilities in the Cortado ThinPrint component. The JPED2000 and TTC parsers are affected by these issues. 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.

Exploitation is only possible if virtual printing has been enabled. This feature is not enabled by default on Workstation but it is enabled by default on Horizon Client for Windows.

Impact

Information Disclosure

Affected Vendors

VMware

Affected Products

  • VMware Horizon Client for Windows 5.x and prior
  • VMware Workstation Pro / Player (Workstation) 16.x

Remediation

Download the latest patches and update to version 16.1.2 from https://www.vmware.com/security/advisories/VMSA-2021-0009.html#