Advisory Published

USN-6257-1: Open VM Tools vulnerability

First published: Thu Jul 27 2023(Updated: )

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)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/open-vm-tools<2:12.1.5-3ubuntu0.23.04.1
2:12.1.5-3ubuntu0.23.04.1
=23.04
All of
ubuntu/open-vm-tools<2:12.1.5-3~ubuntu0.22.04.2
2:12.1.5-3~ubuntu0.22.04.2
=22.04
All of
ubuntu/open-vm-tools<2:11.3.0-2ubuntu0~ubuntu20.04.5
2:11.3.0-2ubuntu0~ubuntu20.04.5
=20.04
All of
ubuntu/open-vm-tools<2:11.0.5-4ubuntu0.18.04.3+esm1
2:11.0.5-4ubuntu0.18.04.3+esm1
=18.04
All of
ubuntu/open-vm-tools<2:10.2.0-3~ubuntu0.16.04.1+esm2
2:10.2.0-3~ubuntu0.16.04.1+esm2
=16.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID of USN-6257-1?

    The vulnerability ID of USN-6257-1 is CVE-2023-20867.

  • What is the impact of CVE-2023-20867?

    CVE-2023-20867 can allow a fully compromised ESXi host to force Open VM Tools to fail to authenticate host-to-guest operations, impacting the confidentiality and integrity of the guest virtual machine.

  • How can I fix the Open VM Tools vulnerability in Ubuntu 23.04?

    To fix the Open VM Tools vulnerability in Ubuntu 23.04, update the package to version 2:12.1.5-3ubuntu0.23.04.1.

  • How can I fix the Open VM Tools vulnerability in Ubuntu 22.04?

    To fix the Open VM Tools vulnerability in Ubuntu 22.04, update the package to version 2:12.1.5-3~ubuntu0.22.04.2.

  • How can I fix the Open VM Tools vulnerability in Ubuntu 20.04?

    To fix the Open VM Tools vulnerability in Ubuntu 20.04, update the package to version 2:11.3.0-2ubuntu0~ubuntu20.04.5.

  • How can I fix the Open VM Tools vulnerability in Ubuntu 18.04?

    To fix the Open VM Tools vulnerability in Ubuntu 18.04, update the package to version 2:11.0.5-4ubuntu0.18.04.3+esm1.

  • How can I fix the Open VM Tools vulnerability in Ubuntu 16.04?

    To fix the Open VM Tools vulnerability in Ubuntu 16.04, update the package to version 2:10.2.0-3~ubuntu0.16.04.1+esm2.

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