VMware Workstation, Fusion and ESXi updates address a heap-overflow vulnerability (CVE-2021-22045)

1. Impacted Products

• VMware ESXi

• VMware Workstation Pro / Player (Workstation)

• VMware Fusion

• VMware Cloud Foundation

2. Introduction

A heap-overflow vulnerability in VMware Workstation, Fusion and ESXi was privately reported to VMware. Updates are available to remediate this vulnerability in affected VMware products.

3. VMware Workstation, Fusion and ESXi updates address a heap-overflow vulnerability (CVE-2021-22045)

Description

The CD-ROM device emulation in VMware Workstation, Fusion and ESXi has a heap-overflow vulnerability. VMware has evaluated the severity of this issue to be in the Important severity range with a maximum CVSSv3 base score of 7.7.

Known Attack Vectors

A malicious actor with access to a virtual machine with CD-ROM device emulation may be able to exploit this vulnerability in conjunction with other issues to execute code on the hypervisor from a virtual machine.

Resolution

To remediate CVE-2021-22045 apply the patches listed in the ‘Fixed Version’ column of the ‘Response Matrix’ found below.

Workarounds

Workarounds for CVE-2021-22045 have been listed in the ‘Workarounds’ column of the ‘Response Matrix’ below.

Additional Documentation

None.

Notes

Successful exploitation requires CD image to be attached to the virtual machine.

Acknowledgements

VMware would like to thank Jaanus K\xc3\xa4\xc3\xa4p, Clarified Security working with Trend Micro Zero Day Initiative for reporting this vulnerability to us.