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                        VMware Security Advisory

Advisory ID: VMSA-2018-0008
Severity:    Important
Synopsis:    Workstation and Fusion updates address a denial-of-service
             vulnerability
Issue date:  2018-03-15
Updated on:  2018-03-15 (Initial Advisory)
CVE number:  CVE-2018-6957

1. Summary

   Workstation and Fusion updates address a denial-of-service
   vulnerability

2. Relevant Products

   VMware Workstation Pro / Player (Workstation)
   VMware Fusion Pro / Fusion (Fusion)

3. Problem Description

   Denial-of-service vulnerability through VNC

   VMware Workstation and Fusion contain a denial-of-service
   vulnerability which can be triggered by opening a large number
   of VNC sessions.

   Note: In order for exploitation to be possible on Workstation and
   Fusion, VNC must be manually enabled.

   VMware would like to thank Lilith Wyatt of Cisco Talos for reporting
   this issue to us.

   The Common Vulnerabilities and Exposures project (cve.mitre.org) has
   assigned the identifier CVE-2018-6957 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
   ==============  ======= ======= ========= =============  ==========
   Workstation      14.x    Any    Important    14.1.1        None
   Workstation      12.x    Any    Important     N/A          KB52934
    Fusion          10.x    OS X   Important    10.1.1        None
    Fusion          8.x     OS X   Important     N/A          KB52934


4. Solution

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

   VMware Workstation Pro 14.1.1
   Downloads and Documentation:
   https://www.vmware.com/go/downloadworkstation
   https://www.vmware.com/support/pubs/ws_pubs.html

   VMware Workstation Player 14.1.1
   Downloads and Documentation:
   https://www.vmware.com/go/downloadplayer
   https://www.vmware.com/support/pubs/player_pubs.html

   VMware Fusion Pro / Fusion 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-2018-6957
   https://kb.vmware.com/s/article/52934

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6. Change log

   2018-03-15 VMSA-2018-0008
   Initial security advisory in conjunction with the release of VMware
   Workstation and Fusion Workaround KB on 2018-03-15.

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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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