Improper input validation in Cisco Nexus 9000 Series Switches - CVE-2018-0372
Published: July 18, 2018 / Updated: July 23, 2018
Vulnerability identifier: #VU13971
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/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-2018-0372
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco Nexus 9000 Series Switches
Cisco Nexus 9000 Series Switches
Detailed vulnerability description
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists in the DHCPv6 feature of the Cisco Nexus 9000 Series Fabric Switches in Application-Centric Infrastructure (ACI) Mode due to improper memory management when DHCPv6 packets are received on an interface of the targeted device. A remote attacker can send a high number of malicious DHCPv6 packets, cause the system to run low on memory, and trigger an eventual reboot of an affected device.
How to mitigate CVE-2018-0372
Update to version 13.0(2k).