ESB-2017.2018 - [Appliance][Virtual] VMware NSX-V Edge: Denial of service - Existing account 2017-08-14

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.2018
          VMware NSX-V Edge updates address OSPF Protocol LSA DoS
                              14 August 2017

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

Product:           VMware NSX-V Edge
Publisher:         VMWare
Operating System:  Virtualisation
                   Network Appliance
Impact/Access:     Denial of Service -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-4920  

Original Bulletin: 
   https://www.vmware.com/us/security/advisories/VMSA-2017-0014.html

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                           VMware Security Advisory

Advisory ID: VMSA-2017-0014
Severity:    Important
Synopsis:    VMware NSX-V Edge updates address OSPF Protocol LSA DoS
Issue date:  2017-08-10
Updated on:  2017-08-10 (Initial Advisory)
CVE number:  CVE-2017-4920

1. Summary

   VMware NSX-V Edge updates address OSPF Protocol LSA Denial of
   Service.

2. Relevant Products

   VMware NSX-V Edge

3. Problem Description

   a. VMware NSX-V Edge OSPF Protocol LSA Denial of Service

   VMware NSX-V implementation of the OSPF protocol doesn=92t correctly
   handle the link-state advertisement (LSA). A rogue LSA may exploit
   this issue resulting in continuous sending of LSAs between two
   routers eventually going in loop or loss of connectivity.

   Note: The issue cannot be exploited in case the OSPF protocol is not
   configured. At setup time, no particular protocol is configured. For
   more information on static and dynamic routing for NSX Edge refer to
   the NSX Administration Guide, section Logical Router.

   VMware would like to thank Adi Sosnovich, Orna Grumberg and Gabi
   Nakibly for reporting this issue to us.

   The Common Vulnerabilities and Exposures project (cve.mitre.org) has
   assigned the identifier CVE-2017-4920 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

   NSX-V Edge      6.3.x   any     Important  6.3.3          N/A
   NSX-V Edge      6.2.x   any     Important  6.2.8          N/A


4. Solution

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

   VMware NSX-V
   Downloads:
   https://www.vmware.com/go/download-nsx-vsphere
   Documentation:
   https://www.vmware.com/support/pubs/nsx_pubs.html


5. References

   http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2017-4920

   NSX Administration Guide, section Logical Router.

   https://pubs.vmware.com/NSX-6/index.jsp#com.vmware.nsx.admin.doc/
   GUID-885CE12B-43BF-4259-9DE5-9A7CD9EA5104.html

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6. Change log

   2017-08-10 VMSA-2017-0014
   Initial security advisory in conjunction with the release of
   NSX-V 6.3.3 on 2017-08-10.

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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 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
   http://www.vmware.com/security/advisories

   Consolidated list of VMware Security Advisories
   http://kb.vmware.com/kb/2078735

   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 2017 VMware Inc.  All rights reserved.

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