CVE-2009-1143

Publication date 23 November 2022

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

An issue was discovered in open-vm-tools 2009.03.18-154848. Local users can bypass intended access restrictions on mounting shares via a symlink attack that leverages a realpath race condition in mount.vmhgfs (aka hgfsmounter).

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
open-vm-tools	22.10 kinetic	Not affected
	22.04 LTS jammy	Not affected
	20.04 LTS focal	Ignored
	18.04 LTS bionic	Ignored
	16.04 LTS xenial	Ignored end of standard support
	14.04 LTS trusty	Ignored end of standard support

Notes

mdeslaur

mount.vmhgfs not suid root in Debian and Ubuntu, negligible security impact. Upstream commit removes vmhgfs in favour of hgfs-fuse. Since this has no security impact on Ubuntu, and there is no upstream fix for the issue, we will not be fixing this in stable releases.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
open-vm-tools	Upstream: 61331a1

Severity score breakdown

CVSS version: CVSS v3.0

Base score 7.0 · High

Base metrics

Parameter	Value
Attack vector	Local
Attack complexity	High
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality impact	High
Integrity impact	High
Availability impact	High

Scores

Parameter	Value
Base score	7.0 · High
Exploitability score	-
Impact score	-

Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H