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VMSA-2017-0014:VMware NSX-V Edge updates address OSPF Protocol LSA DoS

Product/Component

VMware

0 more products

Notification Id

23510

Last Updated

08 August 2017

Initial Publication Date

08 August 2017

Status

CLOSED

Severity

HIGH

CVSS Base Score

WorkAround

Affected CVE

CVE-2017-4920

VMSA-2017-0014

VMware NSX-V Edge updates address OSPF Protocol LSA DoS

VMware Security Advisory

VMware Security Advisory Advisory ID:

VMSA-2017-0014

VMware Security Advisory Severity:

Important

VMware Security Advisory Synopsis:

VMware NSX-V Edge updates address OSPF Protocol LSA DoS

VMware Security Advisory Issue date:

2017-08-10

VMware Security Advisory Updated on:

2017-08-10 (Initial Advisory)

VMware Security Advisory CVE numbers:

CVE-2017-4920

1. Summary

VMware NSX-V Edge updates address OSPF Protocol LSA DoS.

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’t 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.