Ubuntu Security Notice USN-6257-1 open-vm-tools

==========================================================================
Ubuntu Security Notice USN-6257-1
July 27, 2023

open-vm-tools vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

– Ubuntu 23.04
– Ubuntu 22.04 LTS
– Ubuntu 20.04 LTS
– Ubuntu 18.04 LTS (Available with Ubuntu Pro)
– Ubuntu 16.04 LTS (Available with Ubuntu Pro)

Summary:

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

Software Description:
– 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)

Update instructions:

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

Ubuntu 23.04:
open-vm-tools 2:12.1.5-3ubuntu0.23.04.1

Ubuntu 22.04 LTS:
open-vm-tools 2:12.1.5-3~ubuntu0.22.04.2

Ubuntu 20.04 LTS:
open-vm-tools 2:11.3.0-2ubuntu0~ubuntu20.04.5

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
open-vm-tools 2:11.0.5-4ubuntu0.18.04.3+esm1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
open-vm-tools 2:10.2.0-3~ubuntu0.16.04.1+esm2

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

References:
https://ubuntu.com/security/notices/USN-6257-1
CVE-2023-20867

Package Information:
https://launchpad.net/ubuntu/+source/open-vm-tools/2:12.1.5-3ubuntu0.23.04.1
https://launchpad.net/ubuntu/+source/open-vm-tools/2:12.1.5-3~ubuntu0.22.04.2
https://launchpad.net/ubuntu/+source/open-vm-tools/2:11.3.0-2ubuntu0~ubuntu20.04.5