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CVE-2017-4920

UnknownEPSS 1.13%

Last modified

CVE-2017-4920 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.13% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability
1.13%

62.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
VmwareNsx-V Edge>= 6.2.0, < 6.2.8
VmwareNsx-V Edge>= 6.3.0, < 6.3.3

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2017-4920?
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.
How severe is CVE-2017-4920?
Severity scoring for CVE-2017-4920 is pending analysis. The EPSS model estimates a 1.13% probability of exploitation in the next 30 days.
How do I fix CVE-2017-4920?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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Source: NVD / NIST