CVE-2018-7170
Published: 6 March 2018
ntpd in ntp 4.2.x before 4.2.8p7 and 4.3.x before 4.3.92 allows authenticated users that know the private symmetric key to create arbitrarily-many ephemeral associations in order to win the clock selection of ntpd and modify a victim's clock via a Sybil attack. This issue exists because of an incomplete fix for CVE-2016-1549.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
ntp Launchpad, Ubuntu, Debian |
artful |
Ignored
(end of life)
|
| bionic |
Needed
|
|
| cosmic |
Released
(1:4.2.8p11+dfsg-1ubuntu1)
|
|
| disco |
Released
(1:4.2.8p11+dfsg-1ubuntu1)
|
|
| eoan |
Released
(1:4.2.8p11+dfsg-1ubuntu1)
|
|
| focal |
Released
(1:4.2.8p11+dfsg-1ubuntu1)
|
|
| groovy |
Released
(1:4.2.8p11+dfsg-1ubuntu1)
|
|
| hirsute |
Released
(1:4.2.8p11+dfsg-1ubuntu1)
|
|
| impish |
Released
(1:4.2.8p11+dfsg-1ubuntu1)
|
|
| jammy |
Released
(1:4.2.8p11+dfsg-1ubuntu1)
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| trusty |
Needed
|
|
| upstream |
Released
(4.2.8p11)
|
|
| xenial |
Needed
|
|
|
Patches: upstream: http://bk.ntp.org/ntp-stable/?PAGE=cset&REV=5a5dab3a2_FQ3mvEDDduCKFCgMUHxg upstream: http://bk.ntp.org/ntp-stable/?PAGE=cset&REV=5a5ecbd3TlxNJ-4bhpgNPrNnk0qyRA upstream: http://bk.ntp.org/ntp-stable/?PAGE=cset&REV=5a682fbb3GRmeAsQBMaL14IFQKVWIQ upstream: http://bk.ntp.org/ntp-stable/?PAGE=cset&REV=5a6acee9cAeq0Mxp-nKXzoZdyFjupQ |
||
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 | High |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N |