CVE-2017-4920
First published: Thu Aug 10 2017(Updated: )
The implementation of the OSPF protocol in VMware NSX-V Edge 6.2.x prior to 6.2.8 and NSX-V Edge 6.3.x prior to 6.3.3 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.
Credit: security@vmware.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| VMware NSX-V Edge | >=6.2.0<6.2.8 | |
| VMware NSX-V Edge | >=6.3.0<6.3.3 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2017-4920?
CVE-2017-4920 is considered to have a high severity due to the potential for exploitation through rogue link-state advertisements.
How do I fix CVE-2017-4920?
To fix CVE-2017-4920, you should update VMware NSX-V Edge to version 6.2.8 or 6.3.3 or later.
Which versions of VMware NSX-V Edge are affected by CVE-2017-4920?
VMware NSX-V Edge versions 6.2.0 through 6.2.7 and 6.3.0 through 6.3.2 are affected by CVE-2017-4920.
What kind of attack does CVE-2017-4920 enable?
CVE-2017-4920 enables a potential denial-of-service attack due to a loop in link-state advertisements between affected routers.
Is there a workaround for CVE-2017-4920?
There are no documented workarounds for CVE-2017-4920; upgrading to the fixed version is the recommended course of action.
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