CVE-2019-1617

Published Mar 11, 2019

Last updated 5 years ago

CVSS high 7.4

Overview

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).
Source: ykramarz@cisco.com
NVD status: Modified

Risk scores

CVSS 3.0

Type: Primary
Base score: 7.4
Impact score: 4
Exploitability score: 2.8
Vector string: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Severity: HIGH

CVSS 2.0

Type: Primary
Base score: 6.1
Impact score: 6.9
Exploitability score: 6.5
Vector string: AV:A/AC:L/Au:N/C:N/I:N/A:C

Weaknesses

nvd@nist.gov: CWE-913
ykramarz@cisco.com: CWE-913

Hype score: Not currently trending

Configurations

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Overview

Risk scores

CVSS 3.0

CVSS 2.0

Weaknesses

Social media

Configurations

References