CVE-2018-7184

CVSS 3.0 Score 7.5 of 10 (high)

Details

Published Mar 6, 2018
Updated: Jan 14, 2025

Summary

CVE-2018-7184 is a denial-of-service vulnerability affecting ntpd in versions of ntp 4.2.8p4 and earlier up to 4.2.8p11. The issue arises when ntpd drops packets with invalid or zero-origin timestamps before updating the "received" timestamp. attackers can exploit this vulnerability by sending such packets, causing the association to reset and setting the packet contents as the most recent timestamp. This problem stems from an incomplete fix for the CVE-2015-7704 vulnerability.

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Affected Products

  • Network Time Protocol
  • Ubuntu Linux
  • Slackware
  • DiskStation Manager
  • Synology Router Manager

Affected Vendors

  • NT&P
  • Synology
  • Canonical System