1. Ubuntu Security Notices
  2. USN-6463-2

USN-6463-2: Open VM Tools vulnerabilities

Publication date

6 December 2023

Overview

Several security issues were fixed in Open VM Tools.

Releases

Packages

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

Details

USN-6463-1 fixed vulnerabilities in Open VM Tools. This update provides
the corresponding updates for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.

Original advisory details:

It was discovered that Open VM Tools incorrectly handled SAML tokens. A
remote attacker with Guest Operations privileges could possibly use this
issue to elevate their privileges. (CVE-2023-34058)

Matthias Gerstner discovered that Open VM Tools incorrectly handled file
descriptors when dropping privileges. A local attacker could possibly use
this issue to hijack /dev/uinput and simulate user inputs. (CVE-2023-34059)

USN-6463-1 fixed vulnerabilities in Open VM Tools. This update provides
the corresponding updates for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.

Original advisory details:

It was discovered that Open VM Tools incorrectly handled SAML tokens. A
remote attacker with Guest Operations privileges could possibly use this
issue to elevate their privileges. (CVE-2023-34058)

Matthias Gerstner discovered that Open VM Tools incorrectly handled file
descriptors when dropping privileges. A local attacker could possibly use
this issue to hijack /dev/uinput and simulate user inputs. (CVE-2023-34059)

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
18.04 bionic open-vm-tools –  2:11.0.5-4ubuntu0.18.04.3+esm3  
open-vm-tools-desktop –  2:11.0.5-4ubuntu0.18.04.3+esm3  
16.04 xenial open-vm-tools –  2:10.2.0-3~ubuntu0.16.04.1+esm4  
open-vm-tools-desktop –  2:10.2.0-3~ubuntu0.16.04.1+esm4  

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References

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