Cisco Nexus 9000 Series Switches Standalone NX-OS Mode Fibre Channel over Ethernet NPV Denial of Service Vulnerability (Cisco Nexus 9000 Series Switches in Standalone NX-OS Mode)
At a glance
- Source
- NVD
- EPSS
- EPSS 1.27 % · percentile 70 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Modified
Description
A vulnerability in the Fibre Channel over Ethernet (FCoE) N-port Virtualization (NPV) protocol implementation in Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. The vulnerability is due to an incorrect processing of FCoE packets when the fcoe-npv feature is uninstalled. An attacker could exploit this vulnerability by sending a stream of FCoE frames from an adjacent host to an affected device. An exploit could allow the attacker to cause packet amplification to occur, resulting in the saturation of interfaces and a DoS condition. Nexus 9000 Series Switches in Standalone NX-OS Mode are affected running software versions prior to 7.0(3)I7(5) and 9.2(2).
Weaknesses (CWE)
- CWE-913 — Improper Control of Dynamically-Managed Code Resources
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | HIGH 7.4 | CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | cisco |
| CVSS 3.0 | HIGH 7.4 | CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | NVD · psirt@cisco.com (Secondary) |
| CVSS 3.0 | HIGH 7.4 | CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 6.1 | AV:A/AC:L/Au:N/C:N/I:N/A:C | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2019-10174
- GCVE · GCVE-0-2019-1617
CERT-FR advisories
- CERTFR-2019-AVI-092 — Multiples vulnérabilités dans les produits Cisco · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 9.2 < 9.2\(2\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 7.0\(3\)i5 < 7.0\(3\)i7\(5\)
Affected products
| Product | Versions |
|---|---|
| Cisco · Nexus 9000 Series Switches in Standalone NX-OS Mode | affected unspecified < 7.0(3)I7(5) ; affected unspecified < 9.2(2) |
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 |