Description (CNA)
A vulnerability within the Endpoint Learning feature of Cisco Nexus 9000 Series Switches running in Application Centric Infrastructure (ACI) mode could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an endpoint device in certain circumstances. The vulnerability is due to improper endpoint learning when packets are received on a specific port from outside the ACI fabric and destined to an endpoint located on a border leaf when Disable Remote Endpoint Learning has been enabled. This can result in a Remote (XR) entry being created for the impacted endpoint that will become stale if the endpoint migrates to a different port or leaf switch. This results in traffic not reaching the impacted endpoint until the Remote entry can be relearned by another mechanism.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Cisco / Cisco Nexus 9000 Series Fabric Switches in ACI | affected unspecified before 12.2(4M) |
CWE
CWE-371
References
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.