CVE-2021-34713
Cisco IOS XR Software for ASR 9000 Series Routers Denial of Service Vulnerability
Severity Score
7.4
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Track
*SSVC
Descriptions
A vulnerability in the Layer 2 punt code of Cisco IOS XR Software running on Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, adjacent attacker to cause the affected line card to reboot. This vulnerability is due to incorrect handling of specific Ethernet frames that cause a spin loop that can make the network processors unresponsive. An attacker could exploit this vulnerability by sending specific types of Ethernet frames on the segment where the affected line cards are attached. A successful exploit could allow the attacker to cause the affected line card to reboot.
Una vulnerabilidad en el código de bateo de Capa 2 de Cisco IOS XR Software que se ejecuta en los routers de Servicios de Agregación de la serie Cisco ASR 9000 podría permitir a un atacante adyacente no autenticado causar el reinicio de la tarjeta de línea afectada. Esta vulnerabilidad es debido al manejo incorrecto de determinadas tramas Ethernet que causan un bucle de giro que puede hacer que los procesadores de red no respondan. Un atacante podría explotar esta vulnerabilidad mediante el envío de tipos específicos de tramas Ethernet en el segmento donde están conectadas las tarjetas de línea afectadas. Una explotación con éxito podría permitir al atacante causar el reinicio de la tarjeta de línea afectada
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Track
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-06-15 CVE Reserved
- 2021-09-09 CVE Published
- 2024-05-24 EPSS Updated
- 2024-11-07 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-399: Resource Management Errors
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-npspin-QYpwdhFD | 2023-11-07 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.4 < 6.6.3 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.4 < 6.6.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9000 Search vendor "Cisco" for product "Asr 9000" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.4 < 6.6.3 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.4 < 6.6.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9000v-v2 Search vendor "Cisco" for product "Asr 9000v-v2" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.4 < 6.6.3 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.4 < 6.6.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9001 Search vendor "Cisco" for product "Asr 9001" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.4 < 6.6.3 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.4 < 6.6.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9006 Search vendor "Cisco" for product "Asr 9006" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.4 < 6.6.3 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.4 < 6.6.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9010 Search vendor "Cisco" for product "Asr 9010" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.4 < 6.6.3 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.4 < 6.6.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9901 Search vendor "Cisco" for product "Asr 9901" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.4 < 6.6.3 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.4 < 6.6.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9902 Search vendor "Cisco" for product "Asr 9902" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.4 < 6.6.3 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.4 < 6.6.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9903 Search vendor "Cisco" for product "Asr 9903" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.4 < 6.6.3 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.4 < 6.6.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9904 Search vendor "Cisco" for product "Asr 9904" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.4 < 6.6.3 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.4 < 6.6.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9906 Search vendor "Cisco" for product "Asr 9906" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.4 < 6.6.3 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.4 < 6.6.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9910 Search vendor "Cisco" for product "Asr 9910" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.4 < 6.6.3 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.4 < 6.6.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9912 Search vendor "Cisco" for product "Asr 9912" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.4 < 6.6.3 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.4 < 6.6.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9922 Search vendor "Cisco" for product "Asr 9922" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.7 < 6.7.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.7 < 6.7.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9000 Search vendor "Cisco" for product "Asr 9000" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.7 < 6.7.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.7 < 6.7.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9000v-v2 Search vendor "Cisco" for product "Asr 9000v-v2" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.7 < 6.7.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.7 < 6.7.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9001 Search vendor "Cisco" for product "Asr 9001" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.7 < 6.7.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.7 < 6.7.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9006 Search vendor "Cisco" for product "Asr 9006" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.7 < 6.7.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.7 < 6.7.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9010 Search vendor "Cisco" for product "Asr 9010" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.7 < 6.7.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.7 < 6.7.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9901 Search vendor "Cisco" for product "Asr 9901" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.7 < 6.7.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.7 < 6.7.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9902 Search vendor "Cisco" for product "Asr 9902" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.7 < 6.7.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.7 < 6.7.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9903 Search vendor "Cisco" for product "Asr 9903" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.7 < 6.7.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.7 < 6.7.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9904 Search vendor "Cisco" for product "Asr 9904" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.7 < 6.7.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.7 < 6.7.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9906 Search vendor "Cisco" for product "Asr 9906" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.7 < 6.7.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.7 < 6.7.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9910 Search vendor "Cisco" for product "Asr 9910" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.7 < 6.7.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.7 < 6.7.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9912 Search vendor "Cisco" for product "Asr 9912" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 6.7 < 6.7.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 6.7 < 6.7.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9922 Search vendor "Cisco" for product "Asr 9922" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.0 < 7.0.2 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.0 < 7.0.2" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9000 Search vendor "Cisco" for product "Asr 9000" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.0 < 7.0.2 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.0 < 7.0.2" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9000v-v2 Search vendor "Cisco" for product "Asr 9000v-v2" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.0 < 7.0.2 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.0 < 7.0.2" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9001 Search vendor "Cisco" for product "Asr 9001" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.0 < 7.0.2 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.0 < 7.0.2" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9006 Search vendor "Cisco" for product "Asr 9006" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.0 < 7.0.2 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.0 < 7.0.2" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9010 Search vendor "Cisco" for product "Asr 9010" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.0 < 7.0.2 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.0 < 7.0.2" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9901 Search vendor "Cisco" for product "Asr 9901" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.0 < 7.0.2 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.0 < 7.0.2" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9902 Search vendor "Cisco" for product "Asr 9902" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.0 < 7.0.2 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.0 < 7.0.2" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9903 Search vendor "Cisco" for product "Asr 9903" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.0 < 7.0.2 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.0 < 7.0.2" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9904 Search vendor "Cisco" for product "Asr 9904" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.0 < 7.0.2 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.0 < 7.0.2" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9906 Search vendor "Cisco" for product "Asr 9906" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.0 < 7.0.2 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.0 < 7.0.2" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9910 Search vendor "Cisco" for product "Asr 9910" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.0 < 7.0.2 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.0 < 7.0.2" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9912 Search vendor "Cisco" for product "Asr 9912" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.0 < 7.0.2 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.0 < 7.0.2" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9922 Search vendor "Cisco" for product "Asr 9922" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.1 < 7.1.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.1 < 7.1.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9000 Search vendor "Cisco" for product "Asr 9000" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.1 < 7.1.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.1 < 7.1.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9000v-v2 Search vendor "Cisco" for product "Asr 9000v-v2" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.1 < 7.1.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.1 < 7.1.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9001 Search vendor "Cisco" for product "Asr 9001" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.1 < 7.1.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.1 < 7.1.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9006 Search vendor "Cisco" for product "Asr 9006" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.1 < 7.1.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.1 < 7.1.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9010 Search vendor "Cisco" for product "Asr 9010" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.1 < 7.1.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.1 < 7.1.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9901 Search vendor "Cisco" for product "Asr 9901" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.1 < 7.1.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.1 < 7.1.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9902 Search vendor "Cisco" for product "Asr 9902" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.1 < 7.1.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.1 < 7.1.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9903 Search vendor "Cisco" for product "Asr 9903" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.1 < 7.1.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.1 < 7.1.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9904 Search vendor "Cisco" for product "Asr 9904" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.1 < 7.1.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.1 < 7.1.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9906 Search vendor "Cisco" for product "Asr 9906" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.1 < 7.1.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.1 < 7.1.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9910 Search vendor "Cisco" for product "Asr 9910" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.1 < 7.1.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.1 < 7.1.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9912 Search vendor "Cisco" for product "Asr 9912" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xr Search vendor "Cisco" for product "Ios Xr" | >= 7.1 < 7.1.1 Search vendor "Cisco" for product "Ios Xr" and version " >= 7.1 < 7.1.1" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 9922 Search vendor "Cisco" for product "Asr 9922" | - | - |
Safe
|