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             AUSCERT External Security Bulletin Redistribution

       VMware ESXi, Workstation, Player, and Fusion updates address
            important guest privilege escalation vulnerability
                              8 January 2016


        AusCERT Security Bulletin Summary

Product:           VMware ESXi
                   VMware Workstation Player
                   VMware Fusion
Publisher:         VMWare
Operating System:  Windows
                   UNIX variants (UNIX, Linux, OSX)
                   VMware ESX Server
Impact/Access:     Increased Privileges -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2015-6933  

Original Bulletin: 

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VMware ESXi, Fusion, Player, and Workstation updates address important guest 
privilege escalation vulnerability

VMware Security Advisory

Advisory ID: VMSA-2016-0001

Synopsis: VMware ESXi, Fusion, Player, and Workstation updates address 
important guest privilege escalation vulnerability

Issue date: 2016-01-07

Updated on: 2016-01-07 (Initial Advisory)

CVE numbers: CVE-2015-6933

1. Summary

VMware ESXi, Fusion, Player, and Workstation updates address important guest 
privilege escalation vulnerability

2. Relevant Releases

VMware ESXi 6.0 without patch ESXi600-201512102-SG

VMware ESXi 5.5 without patch ESXi550-201512102-SG

VMware ESXi 5.1 without patch ESXi510-201510102-SG

VMware ESXi 5.0 without patch ESXi500-201510102-SG

VMware Workstation prior to 11.1.2

VMware Player prior to 7.1.2

VMware Fusion prior to 7.1.2

3. Problem Description

Important Windows-based guest privilege escalation in VMware Tools

A kernel memory corruption vulnerability is present in the VMware Tools 
"Shared Folders" (HGFS) feature running on Microsoft Windows. Successful 
exploitation of this issue could lead to an escalation of privilege in the 
guest operating system.

VMware would like to thank Dmitry Janushkevich from the Secunia Research Team
for reporting this issue to us.

Note: This vulnerability does not allow for privilege escalation from the 
guest operating system to the host. Host memory can not be manipulated from 
the guest operating system by exploiting this flaw.

The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned
the identifier CVE-2015-6933 to this issue.


Removing the "Shared Folders" (HGFS) feature from previously installed VMware
Tools will remove the possibility of exploitation.

Column 4 of the following table lists the action required to remediate the 
vulnerability in each release, if a solution is available.

VMware Product		Product Version	Running on	Replace with/ Apply Patch*

VMware ESXi 		6.0 		ESXi 		ESXi600-201512102-SG**

VMware ESXi 		5.5 		ESXi 		ESXi550-201512102-SG**

VMware ESXi 		5.1 		ESXi 		ESXi510-201510102-SG**

VMware ESXi 		5.0 		ESXi 		ESXi500-201510102-SG**

VMware Workstation 	12.x.x 		Any 		not affected

VMware Workstation 	11.x.x 		Any 		11.1.2

VMware Player 		12.x.x 		Any 		not affected

VMware Player 		7.x.x 		Any 		7.1.2

VMware Fusion 		8.x.x 		OSX 		not affected

VMware Fusion 		7.x.x 		OSX 		7.1.2

*After the update or patch is applied, VMware Tools must also be updated in 
any Windows-based guests that include the "Shared Folders" (HGFS) feature to 
resolve CVE-2015-6933.

**VMware Tools installations initiated via vSphere (ESXi/vCenter) do not 
include the affected "Shared Folders" (HGFS) feature unless a "Complete" 
feature set was specified during the initial installation.

4. Solution

Please review the patch/release notes for your product and version and verify
the checksum of your downloaded file.

VMware ESXi 6.0

Downloads: https://www.vmware.com/patchmgr/findPatch.portal

Documentation: http://kb.vmware.com/kb/2135123

VMware ESXi 5.5

Downloads: https://www.vmware.com/patchmgr/findPatch.portal

Documentation: http://kb.vmware.com/kb/2135796

VMware ESXi 5.1

Downloads: https://www.vmware.com/patchmgr/findPatch.portal

Documentation: http://kb.vmware.com/kb/2126488

VMware ESXi 5.0

Downloads: https://www.vmware.com/patchmgr/findPatch.portal

Documentation: http://kb.vmware.com/kb/2120210

VMware Workstation 11.1.2

Downloads and Documentation: https://www.vmware.com/go/downloadworkstation

VMware Player 7.1.2

Downloads and Documentation: https://www.vmware.com/go/downloadplayer

VMware Fusion 7.1.2


5. References


6. Change log

2016-01-07 VMSA-2016-0001 Initial security advisory in conjunction with the 
release of VMware ESXi 6.0 patches on 2016-01-07.

7. Contact

E-mail list for product security notifications and announcements:


This Security Advisory is posted to the following lists:

security-announce at lists.vmware.com

bugtraq at securityfocus.com

fulldisclosure at seclists.org

E-mail: security at vmware.com

PGP key at: http://kb.vmware.com/kb/1055

VMware Security Advisories


Consolidated list of VMware Security Advisories


VMware Security Response Policy


VMware Lifecycle Support Phases




Copyright 2016 VMware Inc. All rights reserved.

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