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CVE-2016-2518

Published: 29 April 2016

The MATCH_ASSOC function in NTP before version 4.2.8p9 and 4.3.x before 4.3.92 allows remote attackers to cause an out-of-bounds reference via an addpeer request with a large hmode value.

Priority

Low

Cvss 3 Severity Score

5.3

Score breakdown

Status

Package Release Status
ntp
Launchpad, Ubuntu, Debian
precise
Released (1:4.2.6.p3+dfsg-1ubuntu3.11)
trusty
Released (1:4.2.6.p5+dfsg-3ubuntu2.14.04.10)
upstream
Released (1:4.2.8p7+dfsg-1)
wily Ignored
(end of life)
xenial
Released (1:4.2.8p4+dfsg-3ubuntu5.3)
yakkety Not vulnerable
(1:4.2.8p4+dfsg-3ubuntu6)
zesty Not vulnerable
(1:4.2.8p4+dfsg-3ubuntu6)
Patches:
upstream: http://bk1.ntp.org/ntp-stable/?PAGE=patch&REV=56c9c5218oFfAM2Htz-Zz0kGVqWFow
vendor: http://pkgs.fedoraproject.org/cgit/rpms/ntp.git/tree/ntp-4.2.6p5-cve-2016-2518.patch

Severity score breakdown

Parameter Value
Base score 5.3
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact Low
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L