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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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