Cisco IOS XR Software Layer 2 Services Denial of Service Vulnerability (Cisco Cisco IOS XR Software)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.24 % · percentile 15 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Analyzed
Description
A vulnerability in the handling of specific Ethernet frames by Cisco IOS XR Software for various Cisco Network Convergence System (NCS) platforms could allow an unauthenticated, adjacent attacker to cause critical priority packets to be dropped, resulting in a denial of service (DoS) condition. This vulnerability is due to incorrect classification of certain types of Ethernet frames that are received on an interface. An attacker could exploit this vulnerability by sending specific types of Ethernet frames to or through the affected device. A successful exploit could allow the attacker to cause control plane protocol relationships to fail, resulting in a DoS condition. For more information, see the section of this advisory. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Weaknesses (CWE)
- CWE-684 — Incorrect Provision of Specified Functionality
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.4 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | cisco |
| CVSS 3.1 | HIGH 7.4 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | NVD · psirt@cisco.com (Secondary) |
| CVSS 3.1 | HIGH 7.4 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2024-18032
- GCVE · GCVE-0-2024-20317
CERT-FR advisories
- CERTFR-2024-AVI-0772 — Multiples vulnérabilités dans les produits Cisco · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:cisco:ios_xr:7.7.1:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xr:7.7.2:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xr:7.7.21:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xr:7.8.1:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xr:7.8.2:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xr:7.8.22:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xr:7.9.1:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xr:7.9.2:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xr:7.9.21:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xr:7.10.1:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco IOS XR Software | affected 7.7.1 ; affected 7.8.1 ; affected 7.7.2 ; affected 7.9.1 ; affected 7.8.2 ; affected 7.8.22 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |