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."
Notes
| Author | Note |
|---|---|
| mdeslaur |
fedora has an alternate fix http://lists.ntp.org/pipermail/hackers/2016-January/007416.html |
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
(4.2.8p6)
|
|
| vivid |
Ignored
(end of life)
|
|
| 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: 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 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.7 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Changed |
| Confidentiality | None |
| Integrity impact | High |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N |