A vulnerability in the implementation of a protocol in Cisco Integrated Services Routers Generation 2 (ISR G2) Routers running Cisco IOS 15.0 through 15.6 could allow an unauthenticated, adjacent attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to a misclassification of Ethernet frames. An attacker could exploit this vulnerability by sending a crafted Ethernet frame to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCvc03809.
| Date Added | Due Date | Vulnerability Name | Required Action |
|---|---|---|---|
| 2022-03-03 | 2022-03-24 | Cisco IOS Software for Cisco Integrated Services Routers Denial-of-Service Vulnerability | Apply updates per vendor instructions. |
| Type | Version | Base score | Base severity | Vector |
|---|---|---|---|---|
| Primary | 3.1 | 6.5 | MEDIUM | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Primary | 2.0 | 6.1 | MEDIUM | AV:A/AC:L/Au:N/C:N/I:N/A:C |
| CWE ID | Type | Source |
|---|---|---|
| CWE-399 | Secondary | psirt@cisco.com |
| NVD-CWE-noinfo | Primary | nvd@nist.gov |
| Hyperlink | Source | Resource |
|---|---|---|
| http://www.securityfocus.com/bid/101044 | psirt@cisco.com | Broken Link Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1039452 | psirt@cisco.com | Broken Link Third Party Advisory VDB Entry |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-rbip-dos | psirt@cisco.com | Vendor Advisory |
| http://www.securityfocus.com/bid/101044 | af854a3a-2127-422b-91ae-364da2661108 | Broken Link Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1039452 | af854a3a-2127-422b-91ae-364da2661108 | Broken Link Third Party Advisory VDB Entry |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-rbip-dos | af854a3a-2127-422b-91ae-364da2661108 | Vendor Advisory |