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This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.
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.
Metrics
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CVE Modified by Cisco Systems, Inc.5/14/2024 6:02:58 AM
Action
Type
Old Value
New Value
CVE Modified by Cisco Systems, Inc.11/06/2023 10:42:28 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
Cisco Systems, Inc. AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Removed
CVSS V3
Cisco Systems, Inc. AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Initial Analysis by NIST3/02/2022 10:37:55 AM
Action
Type
Old Value
New Value
Added
CVSS V3.1
NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Added
CVSS V2
NIST (AV:N/AC:M/Au:N/C:N/I:N/A:C)
Added
CWE
NIST NVD-CWE-Other
Added
CPE Configuration
AND
OR
*cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 7.0\(3\)i6\(2\) up to (including) 7.0\(3\)i7\(3\)
OR
cpe:2.3:h:cisco:n9k-c92160yc-x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-c92300yc:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-c92304qc:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-c9232c:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-c92348gc-x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-c9236c:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-c9272q:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-c93108tc-ex:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-c93108tc-fx:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-c9316d-gx:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-c93180lc-ex:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-c93180yc-ex:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-c93180yc-fx:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-c93180yc2-fx:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-c93216tc-fx2:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-c93240yc-fx2:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-c9332c:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-c93360yc-fx2:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-c9336c-fx2:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-c9348gc-fxp:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-c93600cd-gx:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-c9364c:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-c9364c-gx:-:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 7.0\(3\)i6\(2\) up to (including) 9.3\(8\)
*cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 10.1\(1\) up to (including) 10.2\(1\)
OR
cpe:2.3:h:cisco:n9k-x97160yc-ex:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-x97284yc-fx:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-x9732c-ex:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-x9732c-fx:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-x9736c-ex:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-x9736c-fx:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:n9k-x9788tc-fx:-:*:*:*:*:*:*:*
Changed
Reference Type
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-bfd-dos-wGQXrzxn No Types Assigned
CVE Modified by Cisco Systems, Inc.2/24/2022 10:15:25 AM
Action
Type
Old Value
New Value
Changed
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.
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.
Quick Info
CVE Dictionary Entry: CVE-2022-20623 NVD
Published Date: 02/23/2022 NVD
Last Modified: 11/21/2024
Source: Cisco Systems, Inc.