CVE-2018-0378

Cisco NX-OS Software for Nexus 5500, 5600, and 6000 Series Switches Precision Time Protocol Denial of Service Vulnerability

Description

A vulnerability in the Precision Time Protocol (PTP) feature of Cisco Nexus 5500, 5600, and 6000 Series Switches running Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a lack of protection against PTP frame flood attacks. An attacker could exploit this vulnerability by sending large streams of malicious IPv4 or IPv6 PTP traffic to the affected device. A successful exploit could allow the attacker to cause a DoS condition, impacting the traffic passing through the device.

Category

8.6
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.75% Top 20%
Vendor Advisory cisco.com
Affected: Cisco Cisco NX-OS Software for Nexus 6000 Series
Published at:
Updated at:

References

Link Tags
http://www.securitytracker.com/id/1041920 vdb entry third party advisory
http://www.securityfocus.com/bid/105669 vdb entry third party advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-nexus-ptp-dos vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-0378?
CVE-2018-0378 has been scored as a high severity vulnerability.
How to fix CVE-2018-0378?
To fix CVE-2018-0378, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-0378 being actively exploited in the wild?
It is possible that CVE-2018-0378 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-0378?
CVE-2018-0378 affects Cisco Cisco NX-OS Software for Nexus 6000 Series.
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