CVE-2020-11868
At a glance
- Source
- NVD
- EPSS
- EPSS 2.12 % · percentile 82 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- mitre
- NVD status
- Modified
Description
ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows an off-path attacker to block unauthenticated synchronization via a server mode packet with a spoofed source IP address, because transmissions are rescheduled even when a packet lacks a valid origin timestamp.
Weaknesses (CWE)
- CWE-346 — Origin Validation Error
References
- https://lists.debian.org/debian-lts-announce/2020/05/msg00004.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.html
- https://security.gentoo.org/glsa/202007-12
- https://www.oracle.com//security-alerts/cpujul2021.html
- http://support.ntp.org/bin/view/Main/NtpBug3592
- https://bugzilla.redhat.com/show_bug.cgi?id=1716665
- https://security.netapp.com/advisory/ntap-20200424-0002/
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | MEDIUM 5.9 | CVSS:3.0/AC:H/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:N | mitre |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CISA-ADP |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
| CVSS 3.0 | MEDIUM 5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · cve@mitre.org (Secondary) |
| CVSS 2.0 | MEDIUM 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2020-4208
- GCVE · GCVE-0-2020-11868
CERT-FR advisories
- CERTFR-2026-AVI-0458 — Vulnérabilité dans les produits Moxa · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0326 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0316 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2023-AVI-0585 — Multiples vulnérabilités dans HiSecOS EAGLE · cert.ssi.gouv.fr
- CERTFR-2023-AVI-0537 — Multiples vulnérabilités dans les produits Juniper · cert.ssi.gouv.fr
- CERTFR-2022-AVI-267 — Multiples vulnérabilités dans Juniper Networks Junos Space · cert.ssi.gouv.fr
- CERTFR-2020-AVI-780 — Multiples vulnérabilités dans IBM QRadar Network Security · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*≤ 4.2.7cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*≥ 4.3.98 < 4.3.100cpe:2.3:a:ntp:ntp:4.2.8:-:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p1:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p1-beta1:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p1-beta2:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p1-beta3:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p1-beta4:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p1-beta5:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p1-rc1:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p1-rc2:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p10:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p11:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p12:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p13:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p2:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p2-rc1:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p2-rc2:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p2-rc3:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p3:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p3-rc1:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p3-rc2:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p3-rc3:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p4:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p5:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p6:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p7:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p8:*:*:*:*:*:*cpe:2.3:a:ntp:ntp:4.2.8:p9:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*cpe:2.3:a:netapp:data_ontap:-:*:*:*:*:7-mode:*:*cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*cpe:2.3:a:netapp:vasa_provider_for_clustered_data_ontap:*:*:*:*:*:*:*:*≥ 7.2cpe:2.3:a:netapp:vasa_provider_for_clustered_data_ontap:*:*:*:*:*:vsphere:*:*≥ 7.2cpe:2.3:a:netapp:virtual_storage_console:*:*:*:*:*:vsphere:*:*≥ 7.2cpe:2.3:o:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:hci_storage_node_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:fabric-attached_storage_8300_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:fabric-attached_storage_8700_firmware:-:*:*:*:*:*:*:*- +7 more
Affected products
| Product | Versions |
|---|---|
| affected n/a |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |