#VU6986 Denial of service in Cisco Nexus 7000 Series Switches - CVE-2017-6655
Published: June 8, 2017
Vulnerability identifier: #VU6986
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-6655
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerable software:
Cisco Nexus 7000 Series Switches
Cisco Nexus 7000 Series Switches
Software vendor:
Cisco Systems, Inc
Cisco Systems, Inc
Description
The vulnerability allows an adjacent unauthenticated attacker to cause DoS condition on the target system.
The weakness exists in the Fibre Channel over Ethernet (FCoE) protocol implementation for Cisco NX-OS System Software due to a lack of proper FCoE frame padding validation. A remote attacker can send a stream of specially crafted FCoE frames to a target device and cause FCoE-related process to reload.
Successful exploitation of the vulnerability results in denial of service.
The weakness exists in the Fibre Channel over Ethernet (FCoE) protocol implementation for Cisco NX-OS System Software due to a lack of proper FCoE frame padding validation. A remote attacker can send a stream of specially crafted FCoE frames to a target device and cause FCoE-related process to reload.
Successful exploitation of the vulnerability results in denial of service.
Remediation
Install update from vendor's website.