Homepage

Improper Input Validation The advisory has been revoked - it doesn't affect any version of package ntp  (opens in a new tab)

Threat Intelligence

EPSS
4.53% (91st percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UBUNTU1204-NTP-628628
  • published10 Sept 2020
  • disclosed6 Oct 2015
Report a new vulnerability Found a mistake?

Introduced: 6 Oct 2015

CVE-2014-9751  (opens in a new tab)
CWE-20  (opens in a new tab)

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:12.04.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ntp package and not the ntp package as distributed by Ubuntu.

The read_network_packet function in ntp_io.c in ntpd in NTP 4.x before 4.2.8p1 on Linux and OS X does not properly determine whether a source IP address is an IPv6 loopback address, which makes it easier for remote attackers to spoof restricted packets, and read or write to the runtime state, by leveraging the ability to reach the ntpd machine's network interface with a packet from the ::1 address.