USN-6257-1: Open VM Tools vulnerability

Releases

• Ubuntu 23.04
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

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)

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

• open-vm-tools - 2:12.1.5-3~ubuntu0.22.04.2

Ubuntu 20.04

• open-vm-tools - 2:11.3.0-2ubuntu0~ubuntu20.04.5

Ubuntu 18.04

• open-vm-tools - 2:11.0.5-4ubuntu0.18.04.3+esm1
  Available with Ubuntu Pro

Ubuntu 16.04

• open-vm-tools - 2:10.2.0-3~ubuntu0.16.04.1+esm2
  Available with Ubuntu Pro

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

References

• CVE-2023-20867