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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Affected Vendors & Products
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History
Wed, 06 Nov 2024 17:15:00 +0000
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MITRE
Status: PUBLISHED
Assigner: cisco
Published: 2022-02-23T17:40:26.958880Z
Updated: 2024-11-06T16:29:33.324Z
Reserved: 2021-11-02T00:00:00
Link: CVE-2022-20623
Vulnrichment
Updated: 2024-08-03T02:17:52.907Z
NVD
Status : Modified
Published: 2022-02-23T18:15:18.507
Modified: 2024-11-21T06:43:10.913
Link: CVE-2022-20623
Redhat
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