A vulnerability in the rate limiter for Bidirectional Forwarding Detection (BFD) traffic of Cisco NX-OS Software for Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to cause BFD traffic to be dropped on an affected device. This vulnerability is due to a logic error in the BFD rate limiter functionality. An attacker could exploit this vulnerability by sending a crafted stream of traffic through the device. A successful exploit could allow the attacker to cause BFD traffic to be dropped, resulting in BFD session flaps. BFD session flaps can cause route instability and dropped traffic, resulting in a denial of service (DoS) condition. This vulnerability applies to both IPv4 and IPv6 traffic.

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Solution

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Workaround

No workaround given by the vendor.

History

Wed, 06 Nov 2024 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2024-11-06T16:29:33.324Z

Reserved: 2021-11-02T00:00:00

Link: CVE-2022-20623

cve-icon Vulnrichment

Updated: 2024-08-03T02:17:52.907Z

cve-icon NVD

Status : Modified

Published: 2022-02-23T18:15:18.507

Modified: 2024-11-21T06:43:10.913

Link: CVE-2022-20623

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses