Vulnerability Database

300,444

Total vulnerabilities in the database

CVE-2018-7184

ntpd in ntp 4.2.8p4 before 4.2.8p11 drops bad packets before updating the "received" timestamp, which allows remote attackers to cause a denial of service (disruption) by sending a packet with a zero-origin timestamp causing the association to reset and setting the contents of the packet as the most recent timestamp. This issue is a result of an incomplete fix for CVE-2015-7704.

  • Published: Mar 6, 2018
  • Updated: Nov 9, 2025
  • CVE: CVE-2018-7184
  • Severity: Medium
  • Exploit:

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:N/I:N/A:P

No CWE or OWASP classifications available.

Software From Fixed in
ntp / ntp 4.2.8-p5 4.2.8-p5.x
ntp / ntp 4.2.8-p9 4.2.8-p9.x
ntp / ntp 4.2.8-p4 4.2.8-p4.x
ntp / ntp 4.2.8-p7 4.2.8-p7.x
ntp / ntp 4.2.8-p8 4.2.8-p8.x
ntp / ntp 4.2.8-p6 4.2.8-p6.x
ntp / ntp 4.2.8-p10 4.2.8-p10.x
synology / router_manager 1.1 1.1.x
synology / diskstation_manager 6.0 6.0.x
synology / diskstation_manager 5.2 5.2.x
synology / diskstation_manager 6.1 6.1.x
slackware / slackware_linux 14.1 14.1.x
slackware / slackware_linux 14.0 14.0.x
slackware / slackware_linux 14.2 14.2.x
canonical / ubuntu_linux 16.04 16.04.x
canonical / ubuntu_linux 14.04 14.04.x
canonical / ubuntu_linux 17.10 17.10.x
canonical / ubuntu_linux 18.04 18.04.x