CVE-2016-7429
Published: 13 January 2017
NTP before 4.2.8p9 changes the peer structure to the interface it receives the response from a source, which allows remote attackers to cause a denial of service (prevent communication with a source) by sending a response for a source to an interface the source does not use.
Notes
| Author | Note |
|---|---|
| mdeslaur | ntp-4.2.7p385, up to but not including ntp-4.2.8p9, and ntp-4.3.0 up to, but not including ntp-4.3.94 |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
ntp Launchpad, Ubuntu, Debian |
precise |
Not vulnerable
(1:4.2.6.p3+dfsg-1ubuntu3.11)
|
| trusty |
Released
(1:4.2.6.p5+dfsg-3ubuntu2.14.04.11)
|
|
| upstream |
Released
(1:4.2.8p9+dfsg-1, ntp-4.2.8p9)
|
|
| xenial |
Released
(1:4.2.8p4+dfsg-3ubuntu5.5)
|
|
| yakkety |
Released
(1:4.2.8p8+dfsg-1ubuntu2.1)
|
|
| zesty |
Not vulnerable
(1:4.2.8p9+dfsg-2ubuntu1)
|
|
|
Patches: vendor: https://git.centos.org/blob/rpms!ntp.git/4eb1db127a6177011bd913bf4f446e8f701179d6/SOURCES!ntp-4.2.6p5-cve-2016-7429.patch upstream: http://bk1.ntp.org/ntp-stable/?PAGE=cset&REV=57d78deeyfknMUHpF4CWmP8gRRf6qg upstream: http://bk1.ntp.org/ntp-stable/?PAGE=cset&REV=57ef749cgdfwOxXsUdn3G64d0KIoUQ upstream: http://bk1.ntp.org/ntp-stable/?PAGE=cset&REV=58662b53ZwV8BJejPYblqOussZZZ_w |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 3.7 |
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | Low |
| Vector | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L |