USN-6463-1: Open VM Tools vulnerabilities

Releases

• Ubuntu 23.10
• Ubuntu 23.04
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS

Packages

• 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)

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

• 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

• 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.

References

• CVE-2023-34059
• CVE-2023-34058

Related notices

• USN-6463-2: open-vm-tools, open-vm-tools-desktop, open-vm-tools-dev