WID-SEC-W-2026-1181
Vulnerability from csaf_certbund - Published: 2020-04-16 22:00 - Updated: 2026-04-20 22:00Summary
ntp: Schwachstelle ermöglicht Denial of Service
Severity
Mittel
Notes
Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung: Bei ntp handelt es sich um eine Sammlung von Dienstprogrammen und einem Daemon zur Verwendung des Network Time Protocols auf UNIX-basierten Systemen.
Angriff: Ein entfernter, anonymer Angreifer kann eine Schwachstelle in ntp ausnutzen, um einen Denial of Service Angriff durchzuführen.
Betroffene Betriebssysteme: - Appliance
- Linux
- NetApp Appliance
- UNIX
Affected products
Known affected
18 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Avaya Aura System Manager
Avaya
|
cpe:/a:avaya:aura_system_manager:-
|
— | |
|
Avaya Aura Device Services
Avaya
|
cpe:/a:avaya:aura_device_services:-
|
— | |
|
Red Hat Enterprise Linux
Red Hat
|
cpe:/o:redhat:enterprise_linux:-
|
— | |
|
Avaya Aura Application Enablement Services
Avaya
|
cpe:/a:avaya:aura_application_enablement_services:-
|
— | |
|
Avaya Aura Utility Services
Avaya
|
cpe:/a:avaya:aura_utility_services:-
|
— | |
|
Avaya Breeze Platform
Avaya
|
cpe:/a:avaya:breeze_platform:-
|
— | |
|
NetApp Data ONTAP
NetApp
|
cpe:/a:netapp:data_ontap:-
|
— | |
|
Moxa Switch
Moxa
|
cpe:/h:moxa:switch:-
|
— | |
|
Avaya Aura Session Manager
Avaya
|
cpe:/a:avaya:session_manager:-
|
— | |
|
Open Source ntp <4.3.100
Open Source / ntp
|
<4.3.100 | ||
|
Avaya Aura Communication Manager
Avaya
|
cpe:/a:avaya:communication_manager:-
|
— | |
|
Open Source ntp <4.2.8p14
Open Source / ntp
|
<4.2.8p14 | ||
|
Gentoo Linux
Gentoo
|
cpe:/o:gentoo:linux:-
|
— | |
|
Avaya Session Border Controller
Avaya
|
cpe:/h:avaya:session_border_controller:-
|
— | |
|
Debian Linux
Debian
|
cpe:/o:debian:debian_linux:-
|
— | |
|
SUSE Linux
SUSE
|
cpe:/o:suse:suse_linux:-
|
— | |
|
Avaya CMS
Avaya
|
cpe:/a:avaya:call_management_system_server:-
|
— | |
|
F5 BIG-IP
F5
|
cpe:/a:f5:big-ip:-
|
— |
References
15 references
{
"document": {
"aggregate_severity": {
"text": "mittel"
},
"category": "csaf_base",
"csaf_version": "2.0",
"distribution": {
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "de-DE",
"notes": [
{
"category": "legal_disclaimer",
"text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
},
{
"category": "description",
"text": "Bei ntp handelt es sich um eine Sammlung von Dienstprogrammen und einem Daemon zur Verwendung des Network Time Protocols auf UNIX-basierten Systemen.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in ntp ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
"title": "Angriff"
},
{
"category": "general",
"text": "- Appliance\n- Linux\n- NetApp Appliance\n- UNIX",
"title": "Betroffene Betriebssysteme"
}
],
"publisher": {
"category": "other",
"contact_details": "csaf-provider@cert-bund.de",
"name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
"namespace": "https://www.bsi.bund.de"
},
"references": [
{
"category": "self",
"summary": "WID-SEC-W-2026-1181 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2020/wid-sec-w-2026-1181.json"
},
{
"category": "self",
"summary": "WID-SEC-2026-1181 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1181"
},
{
"category": "external",
"summary": "National Vulnerability Database CVE-2020-11868 vom 2020-04-16",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-11868"
},
{
"category": "external",
"summary": "NetApp Security Advisory NTAP-20200424-0002 vom 2020-04-24",
"url": "https://security.netapp.com/advisory/ntap-20200424-0002/"
},
{
"category": "external",
"summary": "Debian Security Advisory DLA 2201 vom 2020-05-05",
"url": "https://lists.debian.org/debian-lts-announce/2020/debian-lts-announce-202005/msg00004.html"
},
{
"category": "external",
"summary": "F5 Security Advisory K44305703 vom 2020-06-02",
"url": "https://support.f5.com/csp/article/K44305703"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2020:2663 vom 2020-06-23",
"url": "https://access.redhat.com/errata/RHSA-2020:2663"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2020:1805-1 vom 2020-06-30",
"url": "http://lists.suse.com/pipermail/sle-security-updates/2020-June/007056.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2020:14415-1 vom 2020-07-01",
"url": "http://lists.suse.com/pipermail/sle-security-updates/2020-July/007061.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2020:1823-1 vom 2020-07-02",
"url": "http://lists.suse.com/pipermail/sle-security-updates/2020-July/007066.html"
},
{
"category": "external",
"summary": "AVAYA Security Advisory ASA-2020-090 vom 2020-07-16",
"url": "https://downloads.avaya.com/css/P8/documents/101069356"
},
{
"category": "external",
"summary": "Gentoo Security Advisory",
"url": "https://security.gentoo.org/glsa/202007-12"
},
{
"category": "external",
"summary": "A10 Security Advisory",
"url": "https://support.a10networks.com/support/security_advisory/ntp-cve-2020-11868/"
},
{
"category": "external",
"summary": "A10 Security Advisory",
"url": "https://support.a10networks.com/support/security_advisory/ntp-cve-2020-11868/"
},
{
"category": "external",
"summary": "Moxa Security Advisory MPSA-258681 vom 2026-04-20",
"url": "https://www.moxa.com/en/support/product-support/security-advisory/mpsa-258681-cve-2020-11868-ntp-vulnerability-in-ethernet-switches"
}
],
"source_lang": "en-US",
"title": "ntp: Schwachstelle erm\u00f6glicht Denial of Service",
"tracking": {
"current_release_date": "2026-04-20T22:00:00.000+00:00",
"generator": {
"date": "2026-04-21T08:04:10.769+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.5.0"
}
},
"id": "WID-SEC-W-2026-1181",
"initial_release_date": "2020-04-16T22:00:00.000+00:00",
"revision_history": [
{
"date": "2020-04-16T22:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2020-04-26T22:00:00.000+00:00",
"number": "2",
"summary": "Neue Updates von NetApp aufgenommen"
},
{
"date": "2020-04-27T22:00:00.000+00:00",
"number": "3",
"summary": "Betroffene NetApp Software aufgenommen"
},
{
"date": "2020-05-05T22:00:00.000+00:00",
"number": "4",
"summary": "Neue Updates von Debian aufgenommen"
},
{
"date": "2020-06-02T22:00:00.000+00:00",
"number": "5",
"summary": "Neue Updates von F5 aufgenommen"
},
{
"date": "2020-06-23T22:00:00.000+00:00",
"number": "6",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2020-06-30T22:00:00.000+00:00",
"number": "7",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2020-07-01T22:00:00.000+00:00",
"number": "8",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2020-07-02T22:00:00.000+00:00",
"number": "9",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2020-07-15T22:00:00.000+00:00",
"number": "10",
"summary": "Neue Updates von AVAYA aufgenommen"
},
{
"date": "2020-07-26T22:00:00.000+00:00",
"number": "11",
"summary": "Neue Updates von GENTOO aufgenommen"
},
{
"date": "2020-07-27T22:00:00.000+00:00",
"number": "12",
"summary": "Neue Updates aufgenommen"
},
{
"date": "2026-04-20T22:00:00.000+00:00",
"number": "13",
"summary": "Neue Updates von moxa aufgenommen"
}
],
"status": "final",
"version": "13"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"category": "product_name",
"name": "Avaya Aura Application Enablement Services",
"product": {
"name": "Avaya Aura Application Enablement Services",
"product_id": "T015516",
"product_identification_helper": {
"cpe": "cpe:/a:avaya:aura_application_enablement_services:-"
}
}
},
{
"category": "product_name",
"name": "Avaya Aura Communication Manager",
"product": {
"name": "Avaya Aura Communication Manager",
"product_id": "T015126",
"product_identification_helper": {
"cpe": "cpe:/a:avaya:communication_manager:-"
}
}
},
{
"category": "product_name",
"name": "Avaya Aura Device Services",
"product": {
"name": "Avaya Aura Device Services",
"product_id": "T015517",
"product_identification_helper": {
"cpe": "cpe:/a:avaya:aura_device_services:-"
}
}
},
{
"category": "product_name",
"name": "Avaya Aura Session Manager",
"product": {
"name": "Avaya Aura Session Manager",
"product_id": "T015127",
"product_identification_helper": {
"cpe": "cpe:/a:avaya:session_manager:-"
}
}
},
{
"category": "product_name",
"name": "Avaya Aura System Manager",
"product": {
"name": "Avaya Aura System Manager",
"product_id": "T015518",
"product_identification_helper": {
"cpe": "cpe:/a:avaya:aura_system_manager:-"
}
}
},
{
"category": "product_name",
"name": "Avaya Aura Utility Services",
"product": {
"name": "Avaya Aura Utility Services",
"product_id": "T015824",
"product_identification_helper": {
"cpe": "cpe:/a:avaya:aura_utility_services:-"
}
}
},
{
"category": "product_name",
"name": "Avaya Breeze Platform",
"product": {
"name": "Avaya Breeze Platform",
"product_id": "T015823",
"product_identification_helper": {
"cpe": "cpe:/a:avaya:breeze_platform:-"
}
}
},
{
"category": "product_name",
"name": "Avaya CMS",
"product": {
"name": "Avaya CMS",
"product_id": "997",
"product_identification_helper": {
"cpe": "cpe:/a:avaya:call_management_system_server:-"
}
}
},
{
"category": "product_name",
"name": "Avaya Session Border Controller",
"product": {
"name": "Avaya Session Border Controller",
"product_id": "T015520",
"product_identification_helper": {
"cpe": "cpe:/h:avaya:session_border_controller:-"
}
}
}
],
"category": "vendor",
"name": "Avaya"
},
{
"branches": [
{
"category": "product_name",
"name": "Debian Linux",
"product": {
"name": "Debian Linux",
"product_id": "2951",
"product_identification_helper": {
"cpe": "cpe:/o:debian:debian_linux:-"
}
}
}
],
"category": "vendor",
"name": "Debian"
},
{
"branches": [
{
"category": "product_name",
"name": "F5 BIG-IP",
"product": {
"name": "F5 BIG-IP",
"product_id": "T001663",
"product_identification_helper": {
"cpe": "cpe:/a:f5:big-ip:-"
}
}
}
],
"category": "vendor",
"name": "F5"
},
{
"branches": [
{
"category": "product_name",
"name": "Gentoo Linux",
"product": {
"name": "Gentoo Linux",
"product_id": "T012167",
"product_identification_helper": {
"cpe": "cpe:/o:gentoo:linux:-"
}
}
}
],
"category": "vendor",
"name": "Gentoo"
},
{
"branches": [
{
"category": "product_name",
"name": "Moxa Switch",
"product": {
"name": "Moxa Switch",
"product_id": "T040899",
"product_identification_helper": {
"cpe": "cpe:/h:moxa:switch:-"
}
}
}
],
"category": "vendor",
"name": "Moxa"
},
{
"branches": [
{
"category": "product_name",
"name": "NetApp Data ONTAP",
"product": {
"name": "NetApp Data ONTAP",
"product_id": "7654",
"product_identification_helper": {
"cpe": "cpe:/a:netapp:data_ontap:-"
}
}
}
],
"category": "vendor",
"name": "NetApp"
},
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c4.2.8p14",
"product": {
"name": "Open Source ntp \u003c4.2.8p14",
"product_id": "T016325"
}
},
{
"category": "product_version",
"name": "4.2.8p14",
"product": {
"name": "Open Source ntp 4.2.8p14",
"product_id": "T016325-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:ntp:ntp:4.2.8p14"
}
}
},
{
"category": "product_version_range",
"name": "\u003c4.3.100",
"product": {
"name": "Open Source ntp \u003c4.3.100",
"product_id": "T016326"
}
},
{
"category": "product_version",
"name": "4.3.100",
"product": {
"name": "Open Source ntp 4.3.100",
"product_id": "T016326-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:ntp:ntp:4.3.100"
}
}
}
],
"category": "product_name",
"name": "ntp"
}
],
"category": "vendor",
"name": "Open Source"
},
{
"branches": [
{
"category": "product_name",
"name": "Red Hat Enterprise Linux",
"product": {
"name": "Red Hat Enterprise Linux",
"product_id": "67646",
"product_identification_helper": {
"cpe": "cpe:/o:redhat:enterprise_linux:-"
}
}
}
],
"category": "vendor",
"name": "Red Hat"
},
{
"branches": [
{
"category": "product_name",
"name": "SUSE Linux",
"product": {
"name": "SUSE Linux",
"product_id": "T002207",
"product_identification_helper": {
"cpe": "cpe:/o:suse:suse_linux:-"
}
}
}
],
"category": "vendor",
"name": "SUSE"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2020-11868",
"product_status": {
"known_affected": [
"T015518",
"T015517",
"67646",
"T015516",
"T015824",
"T015823",
"7654",
"T040899",
"T015127",
"T016326",
"T015126",
"T016325",
"T012167",
"T015520",
"2951",
"T002207",
"997",
"T001663"
]
},
"release_date": "2020-04-16T22:00:00.000+00:00",
"title": "CVE-2020-11868"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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