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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#