CVE-2016-4955

Published: 04 July 2016

ntpd in NTP 4.x before 4.2.8p8, when autokey is enabled, allows remote attackers to cause a denial of service (peer-variable clearing and association outage) by sending (1) a spoofed crypto-NAK packet or (2) a packet with an incorrect MAC value at a certain time.

Priority

Low

CVSS 3 base score: 5.9

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-2016-4955.patch