ESB-2018.0114.2 - UPDATE [Win][UNIX/Linux] VMWare vSphere, Workstation and Fusion: Access privileged data - Existing account 2018-01-15

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             AUSCERT External Security Bulletin Redistribution

                              ESB-2018.0114.2
  VMware vSphere, Workstation and Fusion updates add Hypervisor-Assisted
             Guest Remediation for speculative execution issue
                              15 January 2018

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           VMware vCenter Server
                   VMware vSphere ESXi
                   VMware Workstation
                   VMware Fusion
Publisher:         VMWare
Operating System:  UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Access Privileged Data -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-5715  

Reference:         ASB-2018.0009
                   ESB-2018.0103
                   ESB-2018.0102
                   ESB-2018.0101
                   ESB-2018.0100
                   ASB-2018.0002.4

Original Bulletin: 
   https://www.vmware.com/security/advisories/VMSA-2018-0004.html

Revision History:  January 15 2018: Updated security advisory to add KB article 52345 
                                    and Workstation 12.x version i.e. 12.5.9 which 
                                    addresses CVE-2017-5715
                   January 10 2018: Initial Release

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VMSA-2018-0004.2

VMware vSphere, Workstation and Fusion updates add Hypervisor-Assisted Guest 
Remediation for speculative execution issue

VMware Security Advisory

Advisory ID: VMSA-2018-0004.2

Severity: Important

Synopsis: VMware vSphere, Workstation and Fusion updates add 
Hypervisor-Assisted Guest Remediation for speculative execution issue.

Issue date: 2018-01-09

Updated on: 2018-01-12

CVE numbers: CVE-2017-5715

1. Summary

VMware vSphere, Workstation and Fusion updates add Hypervisor- Assisted Guest
Remediation for speculative execution issue.

Notes:

Hypervisor remediation can be classified into the two following categories:

   - Hypervisor-Specific Remediation (documented in VMSA-2018-0002)

   - Hypervisor-Assisted Guest Remediation (documented in this advisory)

The ESXi patches and new versions of Workstation and Fusion of this advisory 
include the Hypervisor-Specific Remediation documented in VMware Security 
Advisory VMSA-2018-0002.

More information on the types of Hypervisor remediation may be found in VMware
Knowledge Base article 52245.

2. Relevant Products

VMware vCenter Server (VC)

VMware vSphere ESXi (ESXi)

VMware Workstation Pro / Player (Workstation)

VMware Fusion Pro / Fusion (Fusion)

3. Problem Description

New speculative-execution control mechanism for Virtual Machines

Updates of vCenter Server, ESXi, Workstation and Fusion virtualize the new 
speculative-execution control mechanism for Virtual Machines (VMs). As a 
result, a patched Guest Operating System (Guest OS) can remediate the Branch 
Target Injection issue (CVE-2017-5715). This issue may allow for information 
disclosure between processes within the VM.

To remediate CVE-2017-5715 in the Guest OS the following VMware and third 
party requirements must be met:

VMware Requirements

Deploy the updated version of vCenter Server listed in the table (if vCenter 
Server is used).

Deploy the ESXi patches and/or the new versions for Workstation or Fusion 
listed in the table.

Ensure that your VMs are using Hardware Version 9 or higher. For best 
performance, Hardware Version 11 or higher is recommended. VMware Knowledge 
Base article 1010675 discusses Hardware Versions.

Third party Requirements

Deploy the Guest OS patches for CVE-2017-5715. These patches are to be 
obtained from your OS vendor.

Update the CPU microcode. Additional microcode is needed for your CPU to be 
able to expose the new MSRs that are used by the patched Guest OS. This 
microcode should be available from your hardware platform vendor.

VMware is providing several versions of the required microcode from INTEL and
AMD through ESXi patches listed in the table. See VMware Knowledge Base 52085
for more details.

Column 5 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	Severity	Replace with/ Apply Patch	Mitigation/ Workaround

VC 			6.5 			Any 		Important 	6.5 U1e* 			None

VC 			6.0 			Any 		Important 	6.0 U3d*			None

VC 			5.5 			Any 		Important 	5.5 U3g* 			None

ESXi** 			6.5 			Any 		Important	KB52345				None

ESXi** 			6.0 			Any 		Important	KB52345				None

ESXi** 			5.5 			Any 		Important	KB52345				None

Workstation 		14.x 			Any 		Important 	14.1.1 				None

Workstation 		12.x 			Any 		Important 	12.5.9 				None

Fusion 			10.x 			OS X 		Important 	10.1.1 				None

Fusion 			8.x 			OS X 		Important 	8.5.10 				None

* The new versions of vCenter Server set restrictions on ESXi hosts joining an
Enhanced vMotion Cluster, see VMware Knowledge Base article 52085 for details.

** Please see KB article 52345 for important information on these patches.

4. Solution

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

vCenter Server 6.5 U1e

Downloads and Documentation:

https://my.vmware.com/web/vmware/details?productId=614&rPId=20950&downloadGroup=VC65U1E

vCenter Server 6.0 U3d

Downloads and Documentation:

https://my.vmware.com/web/vmware/details?downloadGroup=VC60U3D&productId=491&rPId=20946

vCenter Server 5.5 U3g

Downloads and Documentation:

https://my.vmware.com/web/vmware/details?downloadGroup=VC55U3G&productId=353&rPId=20876

VMware ESXi 6.5

Downloads and Documentation:

https://kb.vmware.com/s/article/52345

VMware ESXi 6.0

Downloads and Documentation:

https://kb.vmware.com/s/article/52345

VMware ESXi 5.5

Downloads and Documentation:

https://kb.vmware.com/s/article/52345

VMware Workstation Pro, Player 14.1.1

Downloads and Documentation:

https://www.vmware.com/go/downloadworkstation

https://www.vmware.com/go/downloadplayer

https://www.vmware.com/support/pubs/ws_pubs.html

VMware Workstation Pro, Player 12.5.9

Downloads and Documentation:

https://my.vmware.com/web/vmware/info/slug/desktop_end_user_computing/vmware_workstation_pro/12_0

https://my.vmware.com/en/web/vmware/free#desktop_end_user_computing/vmware_workstation_player/12_0

https://www.vmware.com/support/pubs/ws_pubs.html

VMware Fusion Pro / Fusion 8.5.10, 10.1.1

Downloads and Documentation:

https://www.vmware.com/go/downloadfusion

https://www.vmware.com/support/pubs/fusion_pubs.html

5. References

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5715

VMware Knowledge Base Article 52085

https://kb.vmware.com/s/article/52085

VMware Knowledge Base Article 1010675

https://kb.vmware.com/s/article/1010675

VMware Knowledge Base article 52245

https://kb.vmware.com/s/article/52245

VMware Knowledge Base article 52245

https://kb.vmware.com/s/article/52345

6. Change log

2018-01-09 VMSA-2018-0004

Initial security advisory in conjunction with the release of VMware vCenter 
Server 5.5 U3g, 6.0 U3d and 6.5 U1e, ESXi 5.5, 6.0, and 6.5 patches and 
Workstation 14.1.1, and Fusion 10.1.1 and 8.5.10 on 2018-01-09.

2018-01-10 VMSA-2018-0004.1

Updated security advisory to add Workstation 12.x version i.e. 12.5.9 which 
addresses CVE-2017-5715.

2018-01-12 VMSA-2018-0004.2 Updated security advisory to add KB article 52345.

7. Contact

E-mail list for product security notifications and announcements:

http://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

http://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

Twitter

https://twitter.com/VMwareSRC

Copyright 2018 VMware Inc. All rights reserved.

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