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Message-ID:
 <BYAPR05MB63436604DE6E9F49EAAAD1B1B9709@BYAPR05MB6343.namprd05.prod.outlook.com>
Date: Tue, 23 Aug 2022 20:10:48 +0000
From: VMware Security Response Center <security@...are.com>
To: "oss-security@...ts.openwall.com" <oss-security@...ts.openwall.com>
Subject: [SECURITY ADVISORY] open-vm-tools: Local privilege escalation
 vulnerability (CVE-2022-31676)

Local privilege escalation vulnerability in open-vm-tools
================================

VMware security advisory, August 23 2022 - https://www.vmware.com/security/advisories/VMSA-2022-0024.html

1. Impacted Products
VMware Tools (open-vm-tools)

2. Introduction
VMware Tools was impacted by a local privilege escalation vulnerability. Updates are available to remediate this vulnerability in affected VMware products.

3. Local privilege escalation vulnerability (CVE-2022-31676)

Description:
VMware Tools contains a local privilege escalation vulnerability. VMware has evaluated the severity of this issue to be in the Important severity range<https://www.vmware.com/support/policies/security_response.html> with a maximum CVSSv3 base score of 7.0<https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H>.

Known Attack Vectors:
A malicious actor with local non-administrative access to the Guest OS can escalate privileges as a root user in the virtual machine.

Resolution:
To remediate CVE-2022-31676 apply the patches listed in the 'Fixed Version' column of the 'Response Matrix' found below.

Workarounds:
None

Additional Documentation:
None

Acknowledgements:
None

Notes:
VMware Tools 10.3.25 only applies to the older Linux releases.

Response Matrix:


VMware Product

Version

Running On

CVE

CVSSv3

Severity

Fixed Version

Workarounds

Additional Documentation
VMware Tools
12.x.y, 11.x.y
Linux
CVE-2022-31676
7.0<https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H>
Important
12.1.0<https://docs.vmware.com/en/VMware-Tools/12.1/rn/VMware-Tools-1210-Release-Notes.html>
None
None
VMware Tools
10.x.y
Linux
CVE-2022-31676
7.0<https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H>
Important
10.3.25<https://docs.vmware.com/en/VMware-Tools/10.3/rn/VMware-Tools-10325-Release-Notes.html>
None
None


4. References:

Fixed Version(s) and Release Notes:

VMware Tools for Linux 12.1.0

Downloads and Documentation:
https://customerconnect.vmware.com/downloads/details?downloadGroup=VMTOOLS1210&productId=1259&rPId=92824

https://docs.vmware.com/en/VMware-Tools/12.1/rn/VMware-Tools-1210-Release-Notes.html

VMware Tools for Linux 10.3.25

Downloads and Documentation:
https://customerconnect.vmware.com/downloads/details?downloadGroup=VMTOOLS10325&productId=1072&rPId=92945

https://docs.vmware.com/en/VMware-Tools/10.3/rn/VMware-Tools-10325-Release-Notes.html

Mitre CVE Dictionary Links:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-31676

FIRST CVSSv3 Calculator:
CVE-2022-31676: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H


Upstream fix for CVE-2022-31676: https://github.com/vmware/open-vm-tools/blob/CVE-2022-31676.patch/README.md



Thanks,
Sibi Aravind E
VMware Security Response Center

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