#VU25009 Out-of-bounds write in Cisco Systems, Inc products - CVE-2020-3119
Published: February 6, 2020
Vulnerability identifier: #VU25009
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-3119
CWE-ID: CWE-787
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerable software:
Cisco Nexus 3000 Series Switches
Nexus 5500 Platform Switches
Nexus 5600 Platform Switches
Cisco Nexus 6000 Series Switches
Cisco Nexus 9000 Series Switches in ACI Mode
Cisco Nexus 9000 Series Switches NX-OS Mode
UCS 6200 Series Fabric Interconnects
UCS 6300 Series Fabric Interconnects
UCS 6400 Series Fabric Interconnects
Cisco Nexus 3000 Series Switches
Nexus 5500 Platform Switches
Nexus 5600 Platform Switches
Cisco Nexus 6000 Series Switches
Cisco Nexus 9000 Series Switches in ACI Mode
Cisco Nexus 9000 Series Switches NX-OS Mode
UCS 6200 Series Fabric Interconnects
UCS 6300 Series Fabric Interconnects
UCS 6400 Series Fabric Interconnects
Software vendor:
Cisco Systems, Inc
Cisco Systems, Inc
Description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to the Cisco Discovery Protocol parser for Cisco NX-OS does not properly validate input for certain fields in a Cisco Discovery Protocol message. A remote attacker on the local network can send a malicious Cisco Discovery Protocol packet to an affected device, trigger out-of-bounds write and execute arbitrary code on the target system.
Remediation
Install updates from vendor's website.
Versions 7.0(3)I7(8) for Nexus 3000 Series Switches and Nexus 9000 Series Switches in Standalone NX-OS Mode and 3.2(3m) for UCS 6200, 6300 and 6400 Series Fabric Interconnects will be released in February 2020.