Description
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.
Published: 2022-02-23
Score: 8.6 High
EPSS: 13.1% Moderate
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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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'}


Subscriptions

Cisco N9k-c92160yc-x N9k-c92300yc N9k-c92304qc N9k-c9232c N9k-c92348gc-x N9k-c9236c N9k-c9272q N9k-c93108tc-ex N9k-c93108tc-fx N9k-c9316d-gx N9k-c93180lc-ex N9k-c93180yc-ex N9k-c93180yc-fx N9k-c93180yc2-fx N9k-c93216tc-fx2 N9k-c93240yc-fx2 N9k-c9332c N9k-c93360yc-fx2 N9k-c9336c-fx2 N9k-c9348gc-fxp N9k-c93600cd-gx N9k-c9364c N9k-c9364c-gx N9k-x97160yc-ex N9k-x97284yc-fx N9k-x9732c-ex N9k-x9732c-fx N9k-x9736c-ex N9k-x9736c-fx N9k-x9788tc-fx Nx-os
cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

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

Reserved: 2021-11-02T00:00:00.000Z

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