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AUSCERT External Security Bulletin Redistribution
ESB-2020.4499
VMware Products affected by denial of service vulnerability (CVE-2020-3999)
18 December 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: VMWare Products
Publisher: VMWare
Operating System: VMware ESX Server
Virtualisation
Windows
Mac OS
Impact/Access: Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-3999
Original Bulletin:
https://www.vmware.com/security/advisories/VMSA-2020-0029.html
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Advisory ID: VMSA-2020-0029
CVSSv3 Range: 3.3
Issue Date: 2020-12-17
Updated On: 2020-12-17 (Initial Advisory)
CVE(s): CVE-2020-3999
Synopsis: VMware ESXi, Workstation, Fusion and Cloud Foundation updates address
a denial of service vulnerability (CVE-2020-3999)
1. Impacted Products
o VMware ESXi
o VMware Workstation
o VMware Fusion
o VMware Cloud Foundation
2. Introduction
A denial of service vulnerability in VMware ESXi, Workstation and Fusion was
privately reported to VMware. Updates are available to address this
vulnerability in affected VMware products.
3a. Denial-of-Service Vulnerability due to improper input validation
(CVE-2020-3999)
Description
VMware ESXi, Workstation and Fusion contain a denial of service vulnerability
due to improper input validation in GuestInfo. VMware has evaluated the
severity of this issue to be in the Low severity range with a maximum CVSSv3
base score of 3.3.
Known Attack Vectors
A malicious actor with normal user privilege access to a virtual machine can
crash the virtual machine's vmx process leading to a denial of service
condition.
Resolution
To remediate CVE-2020-3999 apply the patches listed in the 'Fixed Version'
column of the 'Response Matrix' found below.
Workarounds
None.
Additional Documentation
None.
Notes
None.
Acknowledgements
VMware would like to thank Lucas Leong (@_wmliang_) of Trend Micro Zero Day
Initiative and Murray McAllister of Insomnia Security - A CyberCX Company for
reporting this issue to us.
Response Matrix 3a:
Product Version Running CVE CVSSv3 Severity Fixed Version Workarounds Additional
On Identifier Documentation
ESXi 7.0 Any CVE-2020-3999 3.3 low ESXi70U1c-17325551 None None
ESXi 6.7 Any CVE-2020-3999 N/A N/A Unaffected N/A N/A
ESXi 6.5 Any CVE-2020-3999 N/A N/A Unaffected N/A N/A
Workstation 16.x Any CVE-2020-3999 3.3 low 16.0 None None
Workstation 15.x Any CVE-2020-3999 3.3 low 15.5.7 None None
Fusion 12.x OS X CVW-2020-3999 3.3 low 12.0 None None
Fusion 11.x OS X CVE-2020-3999 3.3 low 11.5.7 None None
Impacted Product Suites that Deploy Response Matrix 3a Components:
Product Version Running CVE CVSSv3 Severity Fixed Workarounds Additional
On Identifier Version Documentation
Cloud Patch
Foundation 4.x Any CVE-2020-3999 3.3 low pending None None
(ESXi)
Cloud
Foundation 3.x Any CVE-2020-3999 N/A N/A Unaffected N/A N/A
(ESXi)
4. References
VMware Patch Release ESXi 7.0 ESXi70U1c-17325551
https://my.vmware.com/group/vmware/patch
https://docs.vmware.com/en/VMware-vSphere/7.0/rn/vsphere-esxi-70u1c.html
VMware Workstation Pro 16.0
Downloads and Documentation:
https://www.vmware.com/go/downloadworkstation
https://docs.vmware.com/en/VMware-Workstation-Pro/index.html
VMware Workstation Player 16.0
Downloads and Documentation:
https://www.vmware.com/go/downloadplayer
https://docs.vmware.com/en/VMware-Workstation-Player/index.html
VMware Workstation Pro 15.5.7
https://www.vmware.com/go/downloadworkstation
https://docs.vmware.com/en/VMware-Workstation-Pro/index.html
VMware Workstation Player 15.5.7
https://www.vmware.com/go/downloadplayer
https://docs.vmware.com/en/VMware-Workstation-Player/index.html
VMware Fusion 12.0
Downloads and Documentation:
https://www.vmware.com/go/downloadfusion
https://docs.vmware.com/en/VMware-Fusion/index.html
VMware Fusion 11.5.7
Downloads and Documentation:
https://www.vmware.com/go/downloadfusion
https://docs.vmware.com/en/VMware-Fusion/index.html
Mitre CVE Dictionary Links:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-3999
FIRST CVSSv3 Calculator:
CVE-2020-3999 - https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/
PR:L/UI:N/S:U/C:N/I:N/A:L
5. Change Log
2020-12-17: VMSA-2020-0029
Initial security advisory.
_______________________________________________
Security-announce mailing list
Security-announce@lists.vmware.com
https://lists.vmware.com/mailman/listinfo/security-announce
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