CVE-2016-4954

Published: 04 July 2016

The process_packet function in ntp_proto.c in ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (peer-variable modification) by sending spoofed packets from many source IP addresses in a certain scenario, as demonstrated by triggering an incorrect leap indication.

Priority

Low

CVSS 3 base score: 7.5

Status

Package Release Status
ntp
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 16.04 ESM (Xenial Xerus)
Released (1:4.2.8p4+dfsg-3ubuntu5.3)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (1:4.2.6.p5+dfsg-3ubuntu2.14.04.10)
Patches:
Vendor: http://pkgs.fedoraproject.org/cgit/rpms/ntp.git/tree/ntp-4.2.6p5-cve-2016-4954.patch