Ubuntu 23.10: 8347-2 Urgent: Open VM Tools Security Flaw Exploitation

ubuntu

October 31, 2023

Several security issues were fixed in Open VM Tools.

Summary

Several security issues were fixed in Open VM Tools.

Software Description:

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

Details:

It was discovered that Open VM Tools incorrectly handled SAML tokens. A

remote attacker Guest Operations privileges could possibly use this issue

to escalate 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)

Topics Covered

security advisory critical privilege escalation remote access ubuntu open vm tools

Update Instructions

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

Ubuntu 23.10:
   open-vm-tools                   2:12.3.0-1ubuntu0.1
   open-vm-tools-desktop           2:12.3.0-1ubuntu0.1

Ubuntu 23.04:
   open-vm-tools                   2:12.1.5-3ubuntu0.23.04.3
   open-vm-tools-desktop           2:12.1.5-3ubuntu0.23.04.3

Ubuntu 22.04 LTS:
   open-vm-tools                   2:12.1.5-3~ubuntu0.22.04.4
   open-vm-tools-desktop           2:12.1.5-3~ubuntu0.22.04.4

Ubuntu 20.04 LTS:
   open-vm-tools                   2:11.3.0-2ubuntu0~ubuntu20.04.7
   open-vm-tools-desktop           2:11.3.0-2ubuntu0~ubuntu20.04.7

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