1. Ubuntu Security Notices
  2. USN-6257-1

USN-6257-1: Open VM Tools vulnerability

Publication date

27 July 2023

Overview

open-vm-tools could be made to bypass authentication.

Releases

Packages

  • open-vm-tools - Open VMware Tools for virtual machines hosted on VMware

Details

It was discovered that Open VM Tools incorrectly handled certain
authentication requests. A fully compromised ESXi host can force Open VM
Tools to fail to authenticate host-to-guest operations, impacting the
confidentiality and integrity of the guest virtual machine. (CVE-2023-20867)

It was discovered that Open VM Tools incorrectly handled certain
authentication requests. A fully compromised ESXi host can force Open VM
Tools to fail to authenticate host-to-guest operations, impacting the
confidentiality and integrity of the guest virtual machine. (CVE-2023-20867)

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
23.04 lunar open-vm-tools –  2:12.1.5-3ubuntu0.23.04.1
22.04 jammy open-vm-tools –  2:12.1.5-3~ubuntu0.22.04.2
20.04 focal open-vm-tools –  2:11.3.0-2ubuntu0~ubuntu20.04.5
18.04 bionic open-vm-tools –  2:11.0.5-4ubuntu0.18.04.3+esm1  
16.04 xenial open-vm-tools –  2:10.2.0-3~ubuntu0.16.04.1+esm2  

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References

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