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AUSCERT External Security Bulletin Redistribution
ESB-2022.4177.2
VMSA-2022-0024 - VMware Tools update addresses a local
privilege escalation vulnerability (CVE-2022-31676)
5 September 2022
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AusCERT Security Bulletin Summary
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Product: VMware Tools
Publisher: VMware
Operating System: VMware ESX Server
Windows
Linux variants
Resolution: Patch/Upgrade
CVE Names: CVE-2022-31676
Original Bulletin:
https://www.vmware.com/security/advisories/VMSA-2022-0024.html
Comment: CVSS (Max): 7.0 CVE-2022-31676 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVSS Source: VMware
Calculator: 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
Revision History: September 5 2022: VMware updated the response matrix to include open-vm-tools
August 24 2022: Initial Release
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Advisory ID: VMSA-2022-0024.1
CVSSv3 Range: 7.0
Issue Date: 2022-08-23
Updated On: 2022-09-02
CVE(s): CVE-2022-31676
Synopsis: VMware Tools update addresses a local privilege escalation
vulnerability (CVE-2022-31676)
1. Impacted Products
o VMware 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 with
a maximum CVSSv3 base score of 7.0.
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.
Notes
o 2022/08/23: VMware Tools 10.3.25 only applies to the older Linux releases.
o 2022/09/02: A version of open-vm-tools that addresses CVE-2022-31676 will
be distributed by Linux vendors.
o 2022/09/02: ** - Fixed version may differ based on the Linux distribution
version and the distribution vendor.
Acknowledgements
None.
Response Matrix
Product Version Running CVE Identifier CVSSv3 Severity Fixed Workarounds Additional
On Version Documentation
12.x.y,
VMware Tools 11.x.y Windows CVE-2022-31676 7.0 important 12.1.0 None None
and
10.x.y
12.x.y,
VMware Tools 11.x.y Linux CVE-2022-31676 7.0 important 12.1.0** None None
(open-vm-tools) and
10.x.y
VMware Tools 10.x.y Linux CVE-2022-31676 7.0 important 10.3.25 None None
4. References
Fixed Version(s) and Release Notes:
VMware Tools for Windows 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
5. Change Log
2022-08-23 VMSA-2022-0024
Initial security advisory.
2022-09-02 VMSA-2022-0024.1
Updated security advisory response matrix impacted products and added a note
for open-vm-tools.
6. Contact
E-mail list for product security notifications and announcements:
https://lists.vmware.com/cgi-bin/mailman/listinfo/security-announce
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