CVE catalog
CVE-2016-4953
Security update for ntp
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 17.24% · Oct 27, 2026
ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (ephemeral-association demobilization) by sending a spoofed crypto-NAK packet with incorrect authentication data at a certain time.
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 | 1:4.2.8p8+dfsg-1 | fixed |
| Suse | ntp | openstack cloud 5 | 4.2.8p8-47.3 | fixed |
| Suse | ntp | manager 2.1 | 4.2.8p8-47.3 | fixed |
| Suse | ntp | manager proxy 2.1 | 4.2.8p8-47.3 | fixed |
| Suse | ntp | linux enterprise server 11 sp2-ltss | 4.2.8p8-47.3 | fixed |
| Suse | ntp | linux enterprise server 11 sp3-ltss | 4.2.8p8-47.3 | fixed |
| Suse | ntp | linux enterprise server 11 sp3-teradata | 4.2.8p8-47.3 | fixed |
| Suse | ntp | linux enterprise server 11 sp4 | 4.2.8p8-14.1 | fixed |
| Suse | ntp | linux enterprise server for sap applications 11 sp4 | 4.2.8p8-14.1 | fixed |
| Suse | ntp | linux enterprise desktop 12 sp1 | 4.2.8p8-14.1 | fixed |
| Suse | ntp | linux enterprise server 12 sp1 | 4.2.8p8-14.1 | fixed |
| Suse | ntp | linux enterprise server for sap applications 12 sp1 | 4.2.8p8-14.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | ntp | deb | 11 | 1:4.2.8p8+dfsg-1 | Not reported | DEBIAN-CVE-2016-4953 | Not reported |
| Suse | ntp | rpm | openstack cloud 5 | 4.2.8p8-47.3 | Not reported | SUSE-SU-2016:1602-1 | Not reported |
| Suse | ntp | rpm | manager 2.1 | 4.2.8p8-47.3 | Not reported | SUSE-SU-2016:1602-1 | Not reported |
| Suse | ntp | rpm | manager proxy 2.1 | 4.2.8p8-47.3 | Not reported | SUSE-SU-2016:1602-1 | Not reported |
| Suse | ntp | rpm | linux enterprise server 11 sp2-ltss | 4.2.8p8-47.3 | Not reported | SUSE-SU-2016:1602-1 | Not reported |
| Suse | ntp | rpm | linux enterprise server 11 sp3-ltss | 4.2.8p8-47.3 | Not reported | SUSE-SU-2016:1602-1 | Not reported |
| Suse | ntp | rpm | linux enterprise server 11 sp3-teradata | 4.2.8p8-47.3 | Not reported | SUSE-SU-2016:1602-1 | Not reported |
| Suse | ntp | rpm | linux enterprise server 11 sp4 | 4.2.8p8-14.1 | Not reported | SUSE-SU-2016:1584-1 | Not reported |
| Suse | ntp | rpm | linux enterprise server for sap applications 11 sp4 | 4.2.8p8-14.1 | Not reported | SUSE-SU-2016:1584-1 | Not reported |
| Suse | ntp | rpm | linux enterprise desktop 12 sp1 | 4.2.8p8-14.1 | Not reported | SUSE-SU-2016:1563-1 | Not reported |
| Suse | ntp | rpm | linux enterprise server 12 sp1 | 4.2.8p8-14.1 | Not reported | SUSE-SU-2016:1563-1 | Not reported |
| Suse | ntp | rpm | linux enterprise server for sap applications 12 sp1 | 4.2.8p8-14.1 | Not reported | SUSE-SU-2016:1563-1 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2016_1563-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2016-4953]
- [https://osv.dev/vulnerability/SUSE-SU-2016:1563-1]
- [https://osv.dev/vulnerability/SUSE-SU-2016:1584-1]
- [https://osv.dev/vulnerability/SUSE-SU-2016:1602-1]
- [https://security.access.redhat.com/data/csaf/v2/vex/2016/cve-2016-4953.json]
[FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]