CVE-2016-7431
Published: 13 January 2017
NTP before 4.2.8p9 allows remote attackers to bypass the origin timestamp protection mechanism via an origin timestamp of zero. NOTE: this vulnerability exists because of a CVE-2015-8138 regression.
Notes
| Author | Note |
|---|---|
| mdeslaur | ntp-4.2.8p8 and ntp-4.3.93 |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
ntp Launchpad, Ubuntu, Debian |
precise |
Not vulnerable
(1:4.2.6.p3+dfsg-1ubuntu3.11)
|
| trusty |
Not vulnerable
(1:4.2.6.p5+dfsg-3ubuntu2.14.04.10)
|
|
| upstream |
Released
(1:4.2.8p9+dfsg-1, 4.2.8p9)
|
|
| xenial |
Not vulnerable
(1:4.2.8p4+dfsg-3ubuntu5.3)
|
|
| yakkety |
Released
(1:4.2.8p8+dfsg-1ubuntu2.1)
|
|
| zesty |
Not vulnerable
(1:4.2.8p9+dfsg-2ubuntu1)
|
|
|
Patches: upstream: http://bk1.ntp.org/ntp-stable/?PAGE=cset&REV=57ff44d0W6suoUHdd2ZvRM3z87j2QA |
||
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 | Low |
| Availability impact | None |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |