CVE-2022-20623
Summary
| CVE | CVE-2022-20623 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2022-02-23 18:15:00 UTC |
| Updated | 2023-11-07 03:42:00 UTC |
| 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. |
Risk And Classification
Problem Types: NVD-CWE-Other
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Hardware | Cisco | N9k-c92160yc-x | - | All | All | All |
| Hardware | Cisco | N9k-c92300yc | - | All | All | All |
| Hardware | Cisco | N9k-c92304qc | - | All | All | All |
| Hardware | Cisco | N9k-c9232c | - | All | All | All |
| Hardware | Cisco | N9k-c92348gc-x | - | All | All | All |
| Hardware | Cisco | N9k-c9236c | - | All | All | All |
| Hardware | Cisco | N9k-c9272q | - | All | All | All |
| Hardware | Cisco | N9k-c93108tc-ex | - | All | All | All |
| Hardware | Cisco | N9k-c93108tc-fx | - | All | All | All |
| Hardware | Cisco | N9k-c9316d-gx | - | All | All | All |
| Hardware | Cisco | N9k-c93180lc-ex | - | All | All | All |
| Hardware | Cisco | N9k-c93180yc-ex | - | All | All | All |
| Hardware | Cisco | N9k-c93180yc-fx | - | All | All | All |
| Hardware | Cisco | N9k-c93180yc2-fx | - | All | All | All |
| Hardware | Cisco | N9k-c93216tc-fx2 | - | All | All | All |
| Hardware | Cisco | N9k-c93240yc-fx2 | - | All | All | All |
| Hardware | Cisco | N9k-c9332c | - | All | All | All |
| Hardware | Cisco | N9k-c93360yc-fx2 | - | All | All | All |
| Hardware | Cisco | N9k-c9336c-fx2 | - | All | All | All |
| Hardware | Cisco | N9k-c9348gc-fxp | - | All | All | All |
| Hardware | Cisco | N9k-c93600cd-gx | - | All | All | All |
| Hardware | Cisco | N9k-c9364c | - | All | All | All |
| Hardware | Cisco | N9k-c9364c-gx | - | All | All | All |
| Hardware | Cisco | N9k-x97160yc-ex | - | All | All | All |
| Hardware | Cisco | N9k-x97284yc-fx | - | All | All | All |
| Hardware | Cisco | N9k-x9732c-ex | - | All | All | All |
| Hardware | Cisco | N9k-x9732c-fx | - | All | All | All |
| Hardware | Cisco | N9k-x9736c-ex | - | All | All | All |
| Hardware | Cisco | N9k-x9736c-fx | - | All | All | All |
| Hardware | Cisco | N9k-x9788tc-fx | - | All | All | All |
| Operating System | Cisco | Nx-os | All | All | All | All |
| Operating System | Cisco | Nx-os | All | All | All | All |
| Operating System | Cisco | Nx-os | All | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| 20220223 Cisco Nexus 9000 Series Switches Bidirectional Forwarding Detection Denial of Service Vulnerability | CISCO | tools.cisco.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 317138 Cisco Nexus Operating System (NX-OS) Bidirectional Forwarding Detection Denial of Service (DoS) Vulnerability (cisco-sa-nxos-bfd-dos-wGQXrzxn)