CVE catalog
CVE-2016-1549
Security update for ntp
- Severity
- Medium · CVSS 6.5
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 3.12% · Oct 25, 2026
A malicious authenticated peer can create arbitrarily-many ephemeral associations in order to win the clock selection algorithm in ntpd in NTP 4.2.8p4 and earlier and NTPsec 3e160db8dc248a0bcb053b56a80167dc742d2b74 and a5fb34b9cc89b92a8fef2f459004865c93bb7f92 and modify a victim's clock.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | ntp | 11 | 1:4.2.8p7+dfsg-1 | fixed |
| Suse | ntp | linux enterprise server 12 sp2-bcl | 4.2.8p11-64.5.1 | fixed |
| Suse | ntp | linux enterprise desktop 12 sp3 | 4.2.8p11-64.3.2 | fixed |
| Suse | ntp | linux enterprise server 12 sp3 | 4.2.8p11-64.3.2 | fixed |
| Suse | ntp | linux enterprise server for sap applications 12 sp3 | 4.2.8p11-64.3.2 | fixed |
| Suse | ntp | openstack cloud 7 | 4.2.8p11-64.5.1 | fixed |
| Suse | ntp | linux enterprise desktop 12 sp3 | 4.2.8p11-64.5.1 | fixed |
| Suse | ntp | linux enterprise server for sap applications 12 sp1 | 4.2.8p11-64.5.1 | fixed |
| Suse | ntp | linux enterprise server for sap applications 12 sp2 | 4.2.8p11-64.5.1 | fixed |
| Suse | ntp | linux enterprise server 12 sp1-ltss | 4.2.8p11-64.5.1 | fixed |
| Suse | ntp | linux enterprise server 12 sp2-ltss | 4.2.8p11-64.5.1 | fixed |
| Suse | ntp | linux enterprise server 12 sp3 | 4.2.8p11-64.5.1 | fixed |
| Suse | ntp | linux enterprise server for sap applications 12 sp3 | 4.2.8p11-64.5.1 | fixed |
| Suse | ntp | enterprise storage 4 | 4.2.8p11-64.5.1 | fixed |
| Suse | ntp | linux enterprise server 11 sp4 | 4.2.8p11-64.4.1 | fixed |
| Suse | ntp | linux enterprise server for sap applications 11 sp4 | 4.2.8p11-64.4.1 | fixed |
| Ubuntu | ntp | pro | 1:4.2.6.p5+dfsg-3ubuntu2 | vulnerable |
| Ubuntu | ntp | pro | 1:4.2.6.p5+dfsg-3ubuntu2.14.04.1 | vulnerable |
| Ubuntu | ntp | pro | 1:4.2.6.p5+dfsg-3ubuntu2.14.04.2 | vulnerable |
| Ubuntu | ntp | pro | 1:4.2.6.p5+dfsg-3ubuntu2.14.04.3 | vulnerable |
| Ubuntu | ntp | pro | 1:4.2.6.p5+dfsg-3ubuntu2.14.04.5 | vulnerable |
| Ubuntu | ntp | pro | 1:4.2.6.p5+dfsg-3ubuntu2.14.04.6 | vulnerable |
| Ubuntu | ntp | pro | 1:4.2.6.p5+dfsg-3ubuntu2.14.04.7 | vulnerable |
| Ubuntu | ntp | pro | 1:4.2.6.p5+dfsg-3ubuntu2.14.04.8 | vulnerable |
| Ubuntu | ntp | pro | 1:4.2.6.p5+dfsg-3ubuntu2.14.04.10 | vulnerable |
| Ubuntu | ntp | pro | 1:4.2.6.p5+dfsg-3ubuntu2.14.04.11 | vulnerable |
| Ubuntu | ntp | pro | 1:4.2.6.p5+dfsg-3ubuntu2.14.04.12 | vulnerable |
| Ubuntu | ntp | pro | 1:4.2.6.p5+dfsg-3ubuntu2.14.04.13 | vulnerable |
| Ubuntu | ntp | pro | 1:4.2.6.p5+dfsg-3ubuntu2.14.04.13+esm1 | vulnerable |
| Ubuntu | ntp | 16.04 | 1:4.2.6.p5+dfsg-3ubuntu8 | vulnerable |
| Ubuntu | ntp | 16.04 | 1:4.2.6.p5+dfsg-3ubuntu8.1 | vulnerable |
| Ubuntu | ntp | 16.04 | 1:4.2.6.p5+dfsg-3ubuntu9 | vulnerable |
| Ubuntu | ntp | 16.04 | 1:4.2.8p4+dfsg-3ubuntu1 | vulnerable |
| Ubuntu | ntp | 16.04 | 1:4.2.8p4+dfsg-3ubuntu2 | vulnerable |
| Ubuntu | ntp | 16.04 | 1:4.2.8p4+dfsg-3ubuntu3 | vulnerable |
| Ubuntu | ntp | 16.04 | 1:4.2.8p4+dfsg-3ubuntu4 | vulnerable |
| Ubuntu | ntp | 16.04 | 1:4.2.8p4+dfsg-3ubuntu5 | vulnerable |
| Ubuntu | ntp | 16.04 | 1:4.2.8p4+dfsg-3ubuntu5.1 | vulnerable |
| Ubuntu | ntp | 16.04 | 1:4.2.8p4+dfsg-3ubuntu5.2 | vulnerable |
| Ubuntu | ntp | 16.04 | 1:4.2.8p4+dfsg-3ubuntu5.3 | vulnerable |
| Ubuntu | ntp | 16.04 | 1:4.2.8p4+dfsg-3ubuntu5.4 | vulnerable |
| Ubuntu | ntp | 16.04 | 1:4.2.8p4+dfsg-3ubuntu5.5 | vulnerable |
| Ubuntu | ntp | 16.04 | 1:4.2.8p4+dfsg-3ubuntu5.6 | vulnerable |
| Ubuntu | ntp | 16.04 | 1:4.2.8p4+dfsg-3ubuntu5.7 | vulnerable |
| Ubuntu | ntp | 16.04 | 1:4.2.8p4+dfsg-3ubuntu5.8 | vulnerable |
| Ubuntu | ntp | 16.04 | 1:4.2.8p4+dfsg-3ubuntu5.9 | vulnerable |
| Ubuntu | ntp | 16.04 | 1:4.2.8p4+dfsg-3ubuntu5.10 | vulnerable |
| Suse | ntp | linux enterprise server 12-ltss | 4.2.8p11-46.26.2 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | ntp | deb | 11 | 1:4.2.8p7+dfsg-1 | Not reported | DEBIAN-CVE-2016-1549 | Not reported |
| Suse | ntp | rpm | linux enterprise server 12 sp2-bcl | 4.2.8p11-64.5.1 | Not reported | SUSE-SU-2018:1765-2 | Not reported |
| Suse | ntp | rpm | linux enterprise desktop 12 sp3 | 4.2.8p11-64.3.2 | Not reported | SUSE-SU-2018:0956-1 | Not reported |
| Suse | ntp | rpm | linux enterprise server 12 sp3 | 4.2.8p11-64.3.2 | Not reported | SUSE-SU-2018:0956-1 | Not reported |
| Suse | ntp | rpm | linux enterprise server for sap applications 12 sp3 | 4.2.8p11-64.3.2 | Not reported | SUSE-SU-2018:0956-1 | Not reported |
| Suse | ntp | rpm | openstack cloud 7 | 4.2.8p11-64.5.1 | Not reported | SUSE-SU-2018:1765-1 | Not reported |
| Suse | ntp | rpm | linux enterprise desktop 12 sp3 | 4.2.8p11-64.5.1 | Not reported | SUSE-SU-2018:1765-1 | Not reported |
| Suse | ntp | rpm | linux enterprise server for sap applications 12 sp1 | 4.2.8p11-64.5.1 | Not reported | SUSE-SU-2018:1765-1 | Not reported |
| Suse | ntp | rpm | linux enterprise server for sap applications 12 sp2 | 4.2.8p11-64.5.1 | Not reported | SUSE-SU-2018:1765-1 | Not reported |
| Suse | ntp | rpm | linux enterprise server 12 sp1-ltss | 4.2.8p11-64.5.1 | Not reported | SUSE-SU-2018:1765-1 | Not reported |
| Suse | ntp | rpm | linux enterprise server 12 sp2-ltss | 4.2.8p11-64.5.1 | Not reported | SUSE-SU-2018:1765-1 | Not reported |
| Suse | ntp | rpm | linux enterprise server 12 sp3 | 4.2.8p11-64.5.1 | Not reported | SUSE-SU-2018:1765-1 | Not reported |
| Suse | ntp | rpm | linux enterprise server for sap applications 12 sp3 | 4.2.8p11-64.5.1 | Not reported | SUSE-SU-2018:1765-1 | Not reported |
| Suse | ntp | rpm | enterprise storage 4 | 4.2.8p11-64.5.1 | Not reported | SUSE-SU-2018:1765-1 | Not reported |
| Suse | ntp | rpm | linux enterprise server 11 sp4 | 4.2.8p11-64.4.1 | Not reported | SUSE-SU-2018:0808-1 | Not reported |
| Suse | ntp | rpm | linux enterprise server for sap applications 11 sp4 | 4.2.8p11-64.4.1 | Not reported | SUSE-SU-2018:0808-1 | Not reported |
| Suse | ntp | rpm | linux enterprise server 12-ltss | 4.2.8p11-46.26.2 | Not reported | SUSE-SU-2018:1464-1 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2016_1278-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2016-1549]
- [https://osv.dev/vulnerability/SUSE-SU-2018:0808-1]
- [https://osv.dev/vulnerability/SUSE-SU-2018:0956-1]
- [https://osv.dev/vulnerability/SUSE-SU-2018:1464-1]
- [https://osv.dev/vulnerability/SUSE-SU-2018:1765-1]
- [https://osv.dev/vulnerability/SUSE-SU-2018:1765-2]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2016-1549]
[FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]