CVE-2022-22938 : Security Advisory and Response
Learn about CVE-2022-22938 impacting VMware Workstation and Horizon Client for Windows. Find out the impact, technical details, and mitigation steps for this denial-of-service vulnerability.
VMware Workstation and Horizon Client for Windows are impacted by a denial-of-service vulnerability in the Cortado ThinPrint component.
Understanding CVE-2022-22938
This CVE discloses a denial-of-service vulnerability affecting VMware Workstation and Horizon Client for Windows due to issues in the TrueType font parser.
What is CVE-2022-22938?
The CVE-2022-22938 vulnerability allows a malicious actor with access to a virtual machine or remote desktop to trigger a denial-of-service condition in the Thinprint service on the host machine running VMware Workstation or Horizon Client for Windows.
The Impact of CVE-2022-22938
Exploitation of this vulnerability can lead to a denial-of-service condition, affecting the availability of services running on the host machine where VMware Workstation or Horizon Client for Windows is installed.
Technical Details of CVE-2022-22938
In this section, we will delve into specific technical details of CVE-2022-22938.
Vulnerability Description
The vulnerability lies within the TrueType font parser of VMware Workstation and Horizon Client for Windows, enabling a malicious actor to trigger a denial-of-service condition.
Affected Systems and Versions
VMware Workstation versions prior to 16.2.2 and Horizon Client for Windows versions prior to 5.5.3 are affected by this vulnerability.
Exploitation Mechanism
By exploiting the TrueType font parser issue, attackers can cause a denial-of-service condition in the Thinprint service running on the host machine.
Mitigation and Prevention
It is crucial to take immediate steps to mitigate the risks posed by CVE-2022-22938.
Immediate Steps to Take
Ensure that VMware Workstation and Horizon Client for Windows are updated to versions 16.2.2 and 5.5.3, respectively, to patch the vulnerability.
Long-Term Security Practices
Implementing secure configuration settings, restricting network access, and monitoring for unusual activities can enhance the overall security posture.
Patching and Updates
Regularly apply security patches and updates provided by VMware to protect against known vulnerabilities like CVE-2022-22938.