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CVE-2014-9751

Published: 6 October 2015

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.

Notes

AuthorNote
mdeslaur
this used to be known as CVE-2014-9298, patches were released
in USN-2497-1

Priority

Medium

Status

Package Release Status
ntp
Launchpad, Ubuntu, Debian
upstream
Released (1:4.2.6.p5+dfsg-4)
precise Not vulnerable

trusty Not vulnerable

vivid Not vulnerable

wily Not vulnerable

xenial Not vulnerable

Patches:
upstream: https://github.com/ntp-project/ntp/commit/96c37aa51d3033a4b552de3c31d0fc1cc66d1f9b
upstream: https://github.com/ntp-project/ntp/commit/96e106df5925c7d4c51b73b2f03ac403e8e1beb2
upstream: https://github.com/ntp-project/ntp/commit/9ebcc199749f89056cf0c5acb82bc5256395102c
upstream: https://github.com/ntp-project/ntp/commit/2fb392987ee930becfec6d8843ce96ba9b465dec