VMware Workstation, Fusion and ESXi updates address a heap-overflow vulnerability (CVE-2021-22045). Customers are advised to issue these updates immediately.
If customers require assistance from Sebae, please get in touch with us.
Updated On: 27/01/2022
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.
Response Matrix
Product | Version | Running On | CVE Identifier | CVSSv3 | Severity | Fixed Version | Workarounds | Additional Documentation |
ESXi | 7.0 | Any | CVE-2021-22045 | 7.7 | Important | ESXi70U3c-19193900 | KB87249 | None |
ESXi | 6.7 | Any | CVE-2021-22045 | 7.7 | Important | ESXi670-202111101-SG | KB87249 | None |
ESXi | 6.5 | Any | CVE-2021-22045 | 7.7 | Important | ESXi650-202110101-SG | KB87249 | None |
Workstation | 16.x | Any | CVE-2021-22045 | 7.7 | Important | 16.2.0 | KB87206 | None |
Fusion | 12.x | OS X | CVE-2021-22045 | 7.7 | Important | 12.2.0 | KB87207 | None |
Impacted Product Suites that Deploy Response Matrix Components:
Product | Version | Running On | CVE Identifier | CVSSv3 | Severity | Fixed Version | Workarounds | Additional Documentation |
VMware Cloud Foundation (ESXi) | 4.x | Any | CVE-2021-22045 | 7.7 | Important | Patch Pending | KB87249 | None |
VMware Cloud Foundation (ESXi) | 3.x | Any | CVE-2021-22045 | 7.7 | Important | Patch Pending | KB87249 | None |
4. References
Fixed Version(s) and Release Notes:
VMware ESXi 7.0
Downloads and Documentation:
https://docs.vmware.com/en/VMware-vSphere/7.0/rn/vsphere-esxi-70u3c-release-notes.html
VMware ESXi 6.7
Downloads and Documentation:
https://customerconnect.vmware.com/patch/
VMware ESXi 6.5
Downloads and Documentation:
https://customerconnect.vmware.com/patch/
https://docs.vmware.com/en/VMware-vSphere/6.5/rn/esxi650-202110001.html
VMware Workstation Pro 16.2.0
Downloads and Documentation:
VMware Workstation Player 16.2.0
Downloads and Documentation:
VMware Fusion 12.2.0
Downloads and Documentation:
https://docs.vmware.com/en/VMware-Fusion/12.2.0/rn/VMware-Fusion-1220-Release-Notes.html
Mitre CVE Dictionary Links:
FIRST CVSSv3 Calculator:
CVE-2021-22045 : https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
5. Change Log
2022-01-04 VMSA-2022-0001
Initial security advisory.
2022-01-27 VMSA-2022-0001.1
Updated security advisory to add ESXi 7.0 version in the response matrix of section 3.