CVE-2016-2516
Published: 29 April 2016
NTP before 4.2.8p7 and 4.3.x before 4.3.92, when mode7 is enabled, allows remote attackers to cause a denial of service (ntpd abort) by using the same IP address multiple times in an unconfig directive.
Priority
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=56bb8b59YMEsaddCqjR8OVyYkVFaaQ vendor: http://pkgs.fedoraproject.org/cgit/rpms/ntp.git/tree/ntp-4.2.6p5-cve-2016-2516.patch |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.3 |
Attack vector | Network |
Attack complexity | High |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |