CVE-2015-7974

Published: 26 January 2016

NTP 4.x before 4.2.8p6 and 4.3.x before 4.3.90 do not verify peer associations of symmetric keys when authenticating packets, which might allow remote attackers to conduct impersonation attacks via an arbitrary trusted key, aka a "skeleton key."

Priority

Low

CVSS 3 base score: 7.7

Status

Package Release Status
ntp
Launchpad, Ubuntu, Debian
Upstream
Released (4.2.8p6)
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:
Upstream: https://github.com/ntp-project/ntp/commit/71a962710bfe066f76da9679cf4cfdeffe34e95e
Vendor: http://pkgs.fedoraproject.org/cgit/rpms/ntp.git/tree/ntp-4.2.6p5-cve-2015-7974.patch