CVE-2017-6655: Buffer Overflow

Published Jun 13, 2017

Updated

A vulnerability in the Fibre Channel over Ethernet (FCoE) protocol implementation in Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition when an FCoE-related process unexpectedly reloads. This vulnerability affects Cisco NX-OS Software on the following Cisco devices when they are configured for FCoE: Multilayer Director Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches. More Information: CSCvc91729. Known Affected Releases: 8.3(0)CV(0.833). Known Fixed Releases: 8.3(0)ISH(0.62) 8.3(0)CV(0.944) 8.1(1) 8.1(0.8)S0 7.3(2)D1(0.47).

Affected Software

6 affected components

Cisco Mds 9000 Nx-os=7.3\(1\)d1\(1\)

Cisco Nx-os For Nexus 5500 Platform Switches=7.3\(1\)n1\(1\)

Cisco Nx-os For Nexus 5600 Platform Switches=7.3\(1\)n1\(1\)

Cisco Nx-os For Nexus 7700 Series Switches=8.0\(1\)\(ed\)

Cisco NX-OS=8.0\(1\)s2

Cisco NX-OS=8.3\(0\)cv\(0.833\)

Event History

Jun 13, 2017

CVE Published

via MITRE·06:00 AM

Data Sourced

via MITRE·06:00 AM

DescriptionWeakness

Frequently Asked Questions

What is the severity of CVE-2017-6655?

CVE-2017-6655 is rated as a medium severity vulnerability that can result in a denial of service (DoS) condition.

How do I fix CVE-2017-6655?

To remediate CVE-2017-6655, upgrade Cisco NX-OS Software to the latest version that is not affected by this vulnerability.

Who is affected by CVE-2017-6655?

CVE-2017-6655 affects several versions of Cisco NX-OS Software running on specific hardware including MDS 9000 and Nexus platforms.

What type of attack does CVE-2017-6655 enable?

CVE-2017-6655 allows an unauthenticated, adjacent attacker to cause a denial of service (DoS) on affected systems.

Is CVE-2017-6655 remote or local?

CVE-2017-6655 is considered an adjacent attack, which means the attacker must be on the same local network segment.