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Date: Fri, 9 Nov 2018 16:12:39 +0000
From: VMware Security Response Center <security@...are.com>
To: "full-disclosure@...ts.grok.org.uk" <full-disclosure@...ts.grok.org.uk>,
  "bugtraq@...urityfocus.com" <bugtraq@...urityfocus.com>
CC: VMware Security Response Center <security@...are.com>
Subject: NEW VMSA-2018-0027 VMware ESXi, Workstation, and Fusion updates
 address uninitialized stack memory usage


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                               VMware Security Advisory

Advisory ID: VMSA-2018-0027
Severity:    Critical
Synopsis:    VMware ESXi, Workstation, and Fusion updates address
             uninitialized stack memory usage
Issue date:  2018-11-09
Updated on:  2018-11-09 (Initial Advisory)
CVE number:  CVE-2018-6981, CVE-2018-6982

1. Summary

   VMware ESXi, Workstation, and Fusion updates address uninitialized
   stack memory usage.

2. Relevant Products
   
   VMware vSphere ESXi (ESXi)
   VMware Workstation Pro / Player (Workstation)
   VMware Fusion Pro / Fusion (Fusion)  

3. Problem Description

   a. vmxnet3 uninitialized stack memory usage
  
   VMware ESXi, Fusion and Workstation contain uninitialized stack
   memory usage in the vmxnet3 virtual network adapter. This
   issue may allow a guest to execute code on the host. The issue is
   present if vmxnet3 is enabled. Non vmxnet3 virtual adapters are not
   affected by this issue.
  
   VMware would like to thank the organizers of GeekPwn2018 and security
   researcher Zhangyanyu of Chaitin Tech for reporting this issue to us.
  
   The Common Vulnerabilities and Exposures project (cve.mitre.org) has
   assigned the identifier CVE-2018-6981 to this issue.

   Column 5 of the following table lists the action required to
   remediate the vulnerability in each release, if a solution is
   available.

   VMware      Product Running             Replace with/     Mitigation/
   Product     Version on     Severity     Apply patch       Workaround
   ==========  ======= ====== ========     =============     ===========
   ESXi        6.7     ESXi   Critical     ESXi670-201811401-BG  None
   ESXi        6.5     ESXi   Critical     ESXi650-201811301-BG  None   
   ESXi        6.0     ESXi   Critical     ESXi600-201811401-BG  None
   Workstation 15.x    Any    Critical     15.0.1                None
   Workstation 14.x    Any    Critical     14.1.4                None
   Fusion      11.x    OS X   Critical     11.0.1                None
   Fusion      10.x    OS X   Critical     10.1.4                None


   b. vmxnet3 uninitialized stack memory usage
  
   VMware ESXi, Fusion and Workstation contain uninitialized stack
   memory usage in the vmxnet3 virtual network adapter. This issue may
   lead to an information leak from host to guest. The issue is present
   if vmxnet3 is enabled. Non vmxnet3 virtual adapters are not affected
   by this issue.

   VMware would like to thank the organizers of GeekPwn2018 and security
   researcher Zhangyanyu of Chaitin Tech for reporting this issue to us.
  
   The Common Vulnerabilities and Exposures project (cve.mitre.org) has
   assigned the identifier CVE-2018-6982 to this issue.

   Column 5 of the following table lists the action required to
   remediate the vulnerability in each release, if a solution is
   available.

   VMware      Product Running             Replace with/     Mitigation/
   Product     Version on     Severity     Apply patch       Workaround
   ==========  ======= ====== ========     =============     ===========
   ESXi        6.7     ESXi   Important    ESXi670-201811401-BG  None
   ESXi        6.5     ESXi   Important    ESXi650-201811301-BG  None
   ESXi        6.0     ESXi   N/A          not affected          N/A
   Workstation Any     Any    N/A          not affected          N/A
   Fusion      Any     OS X   N/A          not affected          N/A

4. Solution

   Please review the patch/release notes for your product and
   version and verify the checksum of your downloaded file.
  
   ESXi 6.7
   Downloads: 
   https://my.vmware.com/group/vmware/patch   
   Documentation:
   https://docs.vmware.com/en/VMware-vSphere/6.7/rn/esxi670-201811001.html
  
   ESXi 6.5 
   Downloads: 
   https://my.vmware.com/group/vmware/patch    
   Documentation:
   https://docs.vmware.com/en/VMware-vSphere/6.5/rn/esxi650-201811001.html
  
   ESXi 6.0 
   Downloads: 
   https://my.vmware.com/group/vmware/patch    
   Documentation: 
   https://docs.vmware.com/en/VMware-vSphere/6.0/rn/esxi600-201811001.html

   VMware Workstation Pro 14.1.4, 15.0.1
   Downloads and Documentation:
   https://www.vmware.com/go/downloadworkstation
   https://docs.vmware.com/en/VMware-Workstation-Pro/index.html

   VMware Workstation Player 14.1.4, 15.0.1 
   Downloads and Documentation:
   https://www.vmware.com/go/downloadplayer
   https://docs.vmware.com/en/VMware-Workstation-Player/index.html
  
   VMware Fusion Pro / Fusion 10.1.4, 11.0.1
   Downloads and Documentation: 
   https://www.vmware.com/go/downloadfusion 
   https://docs.vmware.com/en/VMware-Fusion/index.html 
  
  
5. References

   https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6981
   https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6982
     
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6. Change log

   VMSA-2018-0027 2018-11-09
   Initial security advisory in conjunction with the release of ESXi 6.0,
   6.5, 6.7 patches and VMware Workstation 14.1.4, 15.0.1 and Fusion
   10.1.4, 11.0.1 on 2018-11-09.

- ------------------------------------------------------------------------
7. 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 at lists.vmware.com
     bugtraq at securityfocus.com
     fulldisclosure at seclists.org

   E-mail: security at 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

   Twitter
   https://twitter.com/VMwareSRC

   Copyright 2018 VMware Inc.  All rights reserved.

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