CVE-2018-0473

Cisco IOS Software Precision Time Protocol Denial of Service Vulnerability

Description

A vulnerability in the Precision Time Protocol (PTP) subsystem of Cisco IOS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition of the Precision Time Protocol. The vulnerability is due to insufficient processing of PTP packets. An attacker could exploit this vulnerability by sending a custom PTP packet to, or through, an affected device. A successful exploit could allow the attacker to cause a DoS condition for the PTP subsystem, resulting in time synchronization issues across the network.

Category

8.6
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 3.71% Top 15%
Vendor Advisory cisco.com
Affected: Cisco Cisco IOS Software
Published at:
Updated at:

References

Link Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-ptp vendor advisory
http://www.securitytracker.com/id/1041737 third party advisory vdb entry
http://www.securityfocus.com/bid/105427 third party advisory vdb entry
https://ics-cert.us-cert.gov/advisories/ICSA-19-094-03

Frequently Asked Questions

What is the severity of CVE-2018-0473?
CVE-2018-0473 has been scored as a high severity vulnerability.
How to fix CVE-2018-0473?
To fix CVE-2018-0473, 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-2018-0473 being actively exploited in the wild?
It is possible that CVE-2018-0473 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~4% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-0473?
CVE-2018-0473 affects Cisco Cisco IOS Software.
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