Low

VMSA-2020-0014
3.3
2020-06-18
2020-06-18 (Initial Advisory)
CVE-2020-3972
VMware Tools for macOS update addresses a denial-of-service vulnerability (CVE-2020-3972)

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1. Impacted Products
  • VMware Tools for macOS
2. Introduction

A denial-of-service vulnerability affecting VMware Tools for macOS was privately reported to VMware. Updates are available to address this vulnerability in affected VMware products.

3a. Advisory Details

Description

VMware Tools for macOS contains a denial-of-service vulnerability in the Host-Guest File System (HGFS) implementation. VMware has evaluated the severity of this issue to be in the Low severity range with a maximum CVSSv3 base score of 3.3.

Known Attack Vendors

Successful exploitation of this issue may allow attackers with non-admin privileges on guest macOS virtual machines to create a denial-of-service condition on their own VMs.

 

In order to exploit this vulnerability, the following conditions must be fulfilled:
1) Guest and host operating system must be macOS.
2) Shared folders (HGFS) must be enabled, and a folder (that includes at-least one file) must be selected from the host system to be shared. No folders are shared by default in any version of our products, which means this vulnerability is not exploitable by default.  

Resolution

To remediate CVE-2020-3972 apply the patches listed in the 'Fixed Version' column of the 'Response Matrix' below.

Workarounds

None.

Additional Documentation

None.

Notes

None.

Acknowledgements

VMware would like to thank Jimi Sebree of Tenable Research for reporting this issue to us.

Response Matrix

Product Version Running On CVE Identifier CVSSv3 Severity Fixed Version Workarounds Additional Documentation
VMware Tools for macOS
11.x.x and prior
macOS
CVE-2020-3972
low
11.1.1
None
None
4. References
5. Change Log

2020-06-18 VMSA-2020-0014
Initial security advisory.

6. Contact

E-mail list for product security notifications and announcements:
http://lists.vmware.com/cgi-bin/mailman/listinfo/security-announce

 

This Security Advisory is posted to the following lists:
security-announce@lists.vmware.com

 

E-mail: 

security@vmware.com

 

PGP key at:
https://kb.vmware.com/kb/1055

 

VMware Security Advisories
http://www.vmware.com/security/advisories

 

VMware Security Response Policy
https://www.vmware.com/support/policies/security_response.html

 

VMware Lifecycle Support Phases
https://www.vmware.com/support/policies/lifecycle.html

 

VMware Security & Compliance Blog
https://blogs.vmware.com/security

 

Twitter
https://twitter.com/VMwareSRC

 

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