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AUSCERT External Security Bulletin Redistribution
ESB-2020.3166
VMSA-2020-0020 - VMware Workstation, Fusion and Horizon
Client updates address multiple security vulnerabilities
16 September 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: VMware Workstation
VMware Fusion
VMware Horizon Client for Windows
Publisher: VMWare
Operating System: UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Increased Privileges -- Existing Account
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-3990 CVE-2020-3989 CVE-2020-3988
CVE-2020-3987 CVE-2020-3986 CVE-2020-3980
Original Bulletin:
https://www.vmware.com/security/advisories/VMSA-2020-0020.html
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VMSA-2020-0020 - VMware Workstation, Fusion and Horizon Client updates
address multiple security vulnerabilities
Advisory ID: VMSA-2020-0020
CVSSv3 Range: 3.8-6.7
Issue Date : 2020-09-14
Updated On : 2020-09-14 (Initial Advisory)
CVE(s) : CVE-2020-3980, CVE-2020-3986, CVE-2020-3987, CVE-2020-3988,
CVE-2020-3989, CVE-2020-3990
Synopsis : VMware Workstation, Fusion and Horizon Client updates address
multiple security vulnerabilities (CVE-2020-3980, CVE-2020-3986, CVE-2020-3987,
CVE-2020-3988, CVE-2020-3989, CVE-2020-3990)
1. Impacted Products
o VMware Workstation Pro / Player (Workstation)
o VMware Fusion Pro / Fusion (Fusion)
o VMware Horizon Client for Windows
2. Introduction
Multiple vulnerabilities in VMware Workstation, Fusion and Horizon Client were
privately reported to VMware. Updates are available to remediate these
vulnerabilities in affected VMware products.
3a. PATH configuration privilege escalation vulnerability (CVE-2020-3980)
Description
VMware Fusion contains a privilege escalation vulnerability due to the way it
allows configuring the system wide path. VMware has evaluated the severity of
this issue to be in the Moderate severity range with a maximum CVSSv3 base
score of 6.7.
Known Attack Vectors
An attacker with normal user privileges may exploit this issue to trick an
admin user into executing malicious code on the system where Fusion is
installed.
Resolution
To remediate CVE-2020-3980 apply the patches listed in the 'Fixed Version'
column of the 'Response Matrix' found below.
Workarounds
None.
Additional Documentation
None.
Acknowledgements
VMware would like to thank Rich Mirch from TeamARES of Critical Start for
reporting this issue to us.
Response Matrix
Product Version Running CVE CVSSv3 Severity Fixed Workarounds Additional
On Identifier Version Documentation
Fusion 12.x OS X CVE-2020-3980 6.7 N/A not N/A N/A
affected
Fusion 11.x OS X CVE-2020-3980 6.7 moderate patch None None
pending
3b. Multiple out-of-bounds read vulnerabilities via Cortado ThinPrint
(CVE-2020-3986, CVE-2020-3987, CVE-2020-3988)
Description
VMware Workstation and Horizon Client for Windows contain multiple
out-of-bounds read vulnerabilities in Cortado ThinPrint component. These issues
exist in the EMF and JPEG2000 parsers. VMware has evaluated the severity of
these issues to be in the Moderate severity range with a maximum CVSSv3 base
score of 5.2.
Known Attack Vectors
A malicious actor with normal access to a virtual machine may be able to
exploit these issues to create a partial denial-of-service condition or to leak
memory from TPView process running on the system where Workstation or Horizon
Client for Windows is installed.
Resolution
To remediate CVE-2020-3986 (EMF parser), CVE-2020-3987 (EMR STRETCHDIBITS
parser), and CVE-2020-3988 (JPEG2000 parser) apply the patches listed in the
'Fixed Version' column of the 'Response Matrix' found below.
Workarounds
None.
Additional Documentation
None.
Acknowledgements
VMware would like to thank KPC of Trend Micro's Zero Day Initiative and
pig working with Trend Micro's Zero Day Initiative for reporting these issues
to us.
Notes
Exploitation is only possible if virtual printing has been enabled. This
feature is not enabled by default on Workstation but it is enabled by default
on Horizon Client.
Response Matrix
Product Version Running CVE Identifier CVSSv3 Severity Fixed Workarounds Additional
On Version Documentation
Horizon 5.x and CVE-2020-3986,
Client for prior Windows CVE-2020-3987, 5.2 moderate 5.4.4 None None
Windows CVE-2020-3988
CVE-2020-3986, not
Workstation 16.x Any CVE-2020-3987, 5.2 N/A affected N/A N/A
CVE-2020-3988
CVE-2020-3986, not
Workstation 15.x Linux CVE-2020-3987, 5.2 N/A affected N/A N/A
CVE-2020-3988
CVE-2020-3986, patch
Workstation 15.x Windows CVE-2020-3987, 5.2 moderate pending None None
CVE-2020-3988
3c. Denial-of-service vulnerability via Cortado ThinPrint (CVE-2020-3989)
Description
VMware Workstation and Horizon Client for Windows contain a denial of service
vulnerability due to an out-of-bounds write issue in Cortado ThinPrint
component. VMware has evaluated the severity of this issue to be in the Low
severity range with a maximum CVSSv3 base score of 3.8.
Known Attack Vectors
A malicious actor with normal access to a virtual machine may be able to
exploit this issue to create a partial denial-of-service condition on the
system where Workstation or Horizon Client for Windows is installed.
Resolution
To remediate CVE-2020-3989 apply the patches listed in the 'Fixed Version'
column of the 'Response Matrix' found below.
Workarounds
None.
Additional Documentation
None.
Acknowledgements
VMware would like to thank linhlhq of VinCSS (Member of Vingroup) working with
Trend Micro's Zero Day Initiative for reporting this issue to us.
Notes
Exploitation is only possible if virtual printing has been enabled. This
feature is not enabled by default on Workstation but it is enabled by default
on Horizon Client.
Response Matrix
Product Version Running CVE CVSSv3 Severity Fixed Workarounds Additional
On Identifier Version Documentation
Horizon 5.x and
Client for prior Windows CVE-2020-3989 3.8 low 5.4.4 None None
Windows
Workstation 16.x Any CVE-2020-3989 3.8 N/A not N/A N/A
affected
Workstation 15.x Linux CVE-2020-3989 3.8 N/A not N/A N/A
affected
Workstation 15.x Windows CVE-2020-3989 3.8 low patch None None
pending
3d. Information disclosure vulnerability via Cortado ThinPrint (CVE-2020-3990)
VMware Workstation and Horizon Client for Windows contain an information
disclosure vulnerability due to an integer overflow issue in Cortado ThinPrint
component. VMware has evaluated the severity of this issue to be in the Low
severity range with a maximum CVSSv3 base score of 3.8.
Known Attack Vectors
A malicious actor with normal access to a virtual machine may be able to
exploit this issue to leak memory from TPView process running on the system
where Workstation or Horizon Client for Windows is installed.
Resolution
To remediate CVE-2020-3990 apply the patches listed in the 'Fixed Version'
column of the 'Response Matrix' found below.
Workarounds
None.
Additional Documentation
None.
Acknowledgements
VMware would like to thank linhlhq of VinCSS (Member of Vingroup) working with
Trend Micro's Zero Day Initiative for reporting this issue to us.
Notes
Exploitation is only possible if virtual printing has been enabled. This
feature is not enabled by default on Workstation but it is enabled by default
on Horizon Client.
Response Matrix
Product Version Running CVE CVSSv3 Severity Fixed Workarounds Additional
On Identifier Version Documentation
Horizon 5.x and
Client for prior Windows CVE-2020-3990 3.8 low 5.4.4 None None
Windows
Workstation 16.x Any CVE-2020-3990 3.8 N/A not N/A N/A
affected
Workstation 15.x Linux CVE-2020-3990 3.8 N/A not N/A N/A
affected
Workstation 15.x Windows CVE-2020-3990 3.8 low patch None None
pending
4. References
Fixed Version(s) and Release Notes:
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 Fusion 12.0
Downloads and Documentation:
https://www.vmware.com/go/downloadfusion
https://docs.vmware.com/en/VMware-Fusion/index.html
VMware Horizon Client 5.4.4
Downloads and Documentation:
https://my.vmware.com/en/web/vmware/downloads/info/slug/
desktop_end_user_computing/vmware_horizon_clients/5_0
https://docs.vmware.com/en/VMware-Horizon-Client/index.html
Mitre CVE Dictionary Links:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-3980
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-3986
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-3987
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-3988
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-3989
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-3990
FIRST CVSSv3 Calculator:
CVE-2020-3980 - https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:H/
PR:L/UI:R/S:U/C:H/I:H/A:H
CVE-2020-3986 - https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/
PR:L/UI:N/S:C/C:L/I:N/A:L
CVE-2020-3987 - https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/
PR:L/UI:N/S:C/C:L/I:N/A:L
CVE-2020-3988 - https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/
PR:L/UI:N/S:C/C:L/I:N/A:L
CVE-2020-3989 - https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/
PR:L/UI:N/S:C/C:N/I:N/A:L
CVE-2020-3990 - https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/
PR:L/UI:N/S:C/C:L/I:N/A:N
5. Change Log
2020-09-14: VMSA-2020-0020 - Initial security advisory.
6. Contact
E-mail list for product security notifications and announcements:
https://lists.vmware.com/cgi-bin/mailman/listinfo/security-announce
This Security Advisory is posted to the following lists:
security-announce@lists.vmware.com
bugtraq@securityfocus.com
fulldisclosure@seclists.org
E-mail: security@vmware.com
PGP key at:
https://kb.vmware.com/kb/1055
VMware Security Advisories
https://www.vmware.com/security/advisories
VMware Security Response Policy
https://www.vmware.com/support/policies/security_response.html
VMware Lifecycle Support Phases
https://www.vmware.com/support/policies/lifecycle.html
VMware Security & Compliance Blog
https://blogs.vmware.com/security Twitterhttps://twitter.com/VMwareSRC
Twitter
Tweets by VMwareSRC
Copyright 2020 VMware Inc. All rights reserved.
VMware Logo
Contact Sales Get Support About VMware Careers Thought Leadership
(C) 2020 VMware, Inc Terms of Use Your California Privacy Rights Privacy
Accessibility Site Map Trademarks Glossary Help
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VMSA-2020-0020 - VMware Workstation, Fusion and Horizon Client updates
address multiple security vulnerabilities (CVE-2020-3980, CVE-2020-3986,
CVE-2020-3987, CVE-2020-3988, CVE-2020-3989, CVE-2020-3990)
Please see the advisory here:
https://www.vmware.com/security/advisories/VMSA-2020-0020.html
Impacted Products:
VMware Workstation Pro / Player (Workstation)
VMware Fusion Pro / Fusion (Fusion)
VMware Horizon Client for Windows
You are receiving this alert because you are subscribed to the VMware
Security Announcements mailing list. To modify your subscription please
visit https://lists.vmware.com/mailman/listinfo/security-announce
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_______________________________________________
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Security-announce@lists.vmware.com
https://lists.vmware.com/mailman/listinfo/security-announce
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The University of Queensland
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Internet Email: auscert@auscert.org.au
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