WID-SEC-W-2026-0716
Vulnerability from csaf_certbund - Published: 2026-03-12 23:00 - Updated: 2026-05-20 22:00Summary
OpenSSH GSSAPI delta: Schwachstelle ermöglicht nicht spezifizierten Angriff
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: OpenSSH ist eine Open Source Implementierung des Secure Shell Protokolls.
Ubuntu Linux ist die Linux Distribution des Herstellers Canonical.
Angriff: Ein entfernter, anonymer Angreifer kann eine Schwachstelle in OpenSSH GSSAPI und Ubuntu Linux ausnutzen, um ein undefiniertes Fehlverhalten oder einen potenziellen Denial-of-Service-Angriff auszulösen.
Betroffene Betriebssysteme: - Linux
Affected products
Known affected
10 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Debian Linux
Debian
|
cpe:/o:debian:debian_linux:-
|
— | |
|
Red Hat Enterprise Linux
Red Hat
|
cpe:/o:redhat:enterprise_linux:-
|
— | |
|
IBM QRadar SIEM <7.5.0 UP15 IF02
IBM / QRadar SIEM
|
<7.5.0 UP15 IF02 | ||
|
Ubuntu Linux
Ubuntu
|
cpe:/o:canonical:ubuntu_linux:-
|
— | |
|
Open Source OpenSSH GSSAPI delta Linux distributions
Open Source / OpenSSH
|
cpe:/a:openbsd:openssh:gssapi_delta_linux_distributions
|
GSSAPI delta Linux distributions | |
|
Red Hat OpenShift Container Platform <4.17.54
Red Hat / OpenShift
|
Container Platform <4.17.54 | ||
|
Oracle Linux
Oracle
|
cpe:/o:oracle:linux:-
|
— | |
|
Red Hat OpenShift Container Platform <4.15.64
Red Hat / OpenShift
|
Container Platform <4.15.64 | ||
|
RESF Rocky Linux
RESF
|
cpe:/o:resf:rocky_linux:-
|
— | |
|
Fedora Linux
Fedora
|
cpe:/o:fedoraproject:fedora:-
|
— |
References
34 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": "OpenSSH ist eine Open Source Implementierung des Secure Shell Protokolls.\r\nUbuntu Linux ist die Linux Distribution des Herstellers Canonical.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in OpenSSH GSSAPI und Ubuntu Linux ausnutzen, um ein undefiniertes Fehlverhalten oder einen potenziellen Denial-of-Service-Angriff auszul\u00f6sen.",
"title": "Angriff"
},
{
"category": "general",
"text": "- Linux",
"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-2026-0716 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0716.json"
},
{
"category": "self",
"summary": "WID-SEC-2026-0716 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0716"
},
{
"category": "external",
"summary": "GitHub Security Advisory GHSA-WCPP-3X59-H8VP vom 2026-03-12",
"url": "https://github.com/advisories/GHSA-WCPP-3X59-H8VP"
},
{
"category": "external",
"summary": "Mailing List OSS-Security vom 2026-03-12",
"url": "https://seclists.org/oss-sec/2026/q1/299"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8090-1 vom 2026-03-12",
"url": "https://ubuntu.com/security/notices/USN-8090-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8090-2 vom 2026-03-12",
"url": "https://ubuntu.com/security/notices/USN-8090-2"
},
{
"category": "external",
"summary": "Fedora Security Advisory FEDORA-2026-BAB4AA5DA7 vom 2026-03-18",
"url": "https://bodhi.fedoraproject.org/updates/FEDORA-2026-bab4aa5da7"
},
{
"category": "external",
"summary": "Fedora Security Advisory FEDORA-2026-39819A3D62 vom 2026-03-18",
"url": "https://bodhi.fedoraproject.org/updates/FEDORA-2026-39819a3d62"
},
{
"category": "external",
"summary": "Fedora Security Advisory FEDORA-2026-62FB46CAAC vom 2026-03-18",
"url": "https://bodhi.fedoraproject.org/updates/FEDORA-2026-62fb46caac"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-6462 vom 2026-04-03",
"url": "https://linux.oracle.com/errata/ELSA-2026-6462.html"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-6461 vom 2026-04-03",
"url": "https://linux.oracle.com/errata/ELSA-2026-6461.html"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-6463 vom 2026-04-02",
"url": "https://linux.oracle.com/errata/ELSA-2026-6463.html"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:6463 vom 2026-04-02",
"url": "https://access.redhat.com/errata/RHSA-2026:6463"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:6462 vom 2026-04-02",
"url": "https://access.redhat.com/errata/RHSA-2026:6462"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:6461 vom 2026-04-02",
"url": "https://access.redhat.com/errata/RHSA-2026:6461"
},
{
"category": "external",
"summary": "Rocky Linux Security Advisory RLSA-2026:6461 vom 2026-04-09",
"url": "https://errata.build.resf.org/RLSA-2026:6461"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:7107 vom 2026-04-08",
"url": "https://access.redhat.com/errata/RHSA-2026:7107"
},
{
"category": "external",
"summary": "Debian Security Advisory DSA-6204 vom 2026-04-09",
"url": "https://lists.debian.org/debian-security-announce/2026/msg00114.html"
},
{
"category": "external",
"summary": "Debian Security Advisory DLA-4535 vom 2026-04-16",
"url": "https://lists.debian.org/debian-lts-announce/2026/04/msg00014.html"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:9415 vom 2026-04-21",
"url": "https://access.redhat.com/errata/RHSA-2026:9415"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:10065 vom 2026-04-23",
"url": "https://access.redhat.com/errata/RHSA-2026:10065"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:9732 vom 2026-04-22",
"url": "https://access.redhat.com/errata/RHSA-2026:9732"
},
{
"category": "external",
"summary": "IBM Security Bulletin 7270594 vom 2026-04-23",
"url": "https://www.ibm.com/support/pages/node/7270594"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:10714 vom 2026-04-27",
"url": "https://access.redhat.com/errata/RHSA-2026:10714"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:13812 vom 2026-05-05",
"url": "https://access.redhat.com/errata/RHSA-2026:13812"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:13750 vom 2026-05-05",
"url": "https://access.redhat.com/errata/RHSA-2026:13750"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:14924 vom 2026-05-07",
"url": "https://access.redhat.com/errata/RHSA-2026:14924"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:15893 vom 2026-05-11",
"url": "https://access.redhat.com/errata/RHSA-2026:15893"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:15891 vom 2026-05-11",
"url": "https://access.redhat.com/errata/RHSA-2026:15891"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:12071 vom 2026-05-11",
"url": "https://access.redhat.com/errata/RHSA-2026:12071"
},
{
"category": "external",
"summary": "Red Hat Security Advisory vom 2026-05-13",
"url": "https://access.redhat.com/errata/RHSA-2026:14773"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:15087 vom 2026-05-13",
"url": "https://access.redhat.com/errata/RHSA-2026:15087"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:17596 vom 2026-05-20",
"url": "https://access.redhat.com/errata/RHSA-2026:17596"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:19724 vom 2026-05-21",
"url": "https://access.redhat.com/errata/RHSA-2026:19724"
}
],
"source_lang": "en-US",
"title": "OpenSSH GSSAPI delta: Schwachstelle erm\u00f6glicht nicht spezifizierten Angriff",
"tracking": {
"current_release_date": "2026-05-20T22:00:00.000+00:00",
"generator": {
"date": "2026-05-21T07:56:25.178+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.6.0"
}
},
"id": "WID-SEC-W-2026-0716",
"initial_release_date": "2026-03-12T23:00:00.000+00:00",
"revision_history": [
{
"date": "2026-03-12T23:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2026-03-17T23:00:00.000+00:00",
"number": "2",
"summary": "Neue Updates von Fedora aufgenommen"
},
{
"date": "2026-04-06T22:00:00.000+00:00",
"number": "3",
"summary": "Neue Updates von Oracle Linux und Red Hat aufgenommen"
},
{
"date": "2026-04-08T22:00:00.000+00:00",
"number": "4",
"summary": "Neue Updates von Rocky Enterprise Software Foundation und Red Hat aufgenommen"
},
{
"date": "2026-04-09T22:00:00.000+00:00",
"number": "5",
"summary": "Neue Updates von Debian aufgenommen"
},
{
"date": "2026-04-16T22:00:00.000+00:00",
"number": "6",
"summary": "Neue Updates von Debian aufgenommen"
},
{
"date": "2026-04-21T22:00:00.000+00:00",
"number": "7",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2026-04-22T22:00:00.000+00:00",
"number": "8",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2026-04-23T22:00:00.000+00:00",
"number": "9",
"summary": "Neue Updates von IBM aufgenommen"
},
{
"date": "2026-04-26T22:00:00.000+00:00",
"number": "10",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2026-05-05T22:00:00.000+00:00",
"number": "11",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2026-05-07T22:00:00.000+00:00",
"number": "12",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2026-05-10T22:00:00.000+00:00",
"number": "13",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2026-05-14T22:00:00.000+00:00",
"number": "14",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2026-05-20T22:00:00.000+00:00",
"number": "15",
"summary": "Neue Updates von Red Hat aufgenommen"
}
],
"status": "final",
"version": "15"
}
},
"product_tree": {
"branches": [
{
"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": "Fedora Linux",
"product": {
"name": "Fedora Linux",
"product_id": "74185",
"product_identification_helper": {
"cpe": "cpe:/o:fedoraproject:fedora:-"
}
}
}
],
"category": "vendor",
"name": "Fedora"
},
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c7.5.0 UP15 IF02",
"product": {
"name": "IBM QRadar SIEM \u003c7.5.0 UP15 IF02",
"product_id": "T053291"
}
},
{
"category": "product_version",
"name": "7.5.0 UP15 IF02",
"product": {
"name": "IBM QRadar SIEM 7.5.0 UP15 IF02",
"product_id": "T053291-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:ibm:qradar_siem:7.5.0_up15_if02"
}
}
}
],
"category": "product_name",
"name": "QRadar SIEM"
}
],
"category": "vendor",
"name": "IBM"
},
{
"branches": [
{
"branches": [
{
"category": "product_version",
"name": "GSSAPI delta Linux distributions",
"product": {
"name": "Open Source OpenSSH GSSAPI delta Linux distributions",
"product_id": "T051698",
"product_identification_helper": {
"cpe": "cpe:/a:openbsd:openssh:gssapi_delta_linux_distributions"
}
}
}
],
"category": "product_name",
"name": "OpenSSH"
}
],
"category": "vendor",
"name": "Open Source"
},
{
"branches": [
{
"category": "product_name",
"name": "Oracle Linux",
"product": {
"name": "Oracle Linux",
"product_id": "T004914",
"product_identification_helper": {
"cpe": "cpe:/o:oracle:linux:-"
}
}
}
],
"category": "vendor",
"name": "Oracle"
},
{
"branches": [
{
"category": "product_name",
"name": "RESF Rocky Linux",
"product": {
"name": "RESF Rocky Linux",
"product_id": "T032255",
"product_identification_helper": {
"cpe": "cpe:/o:resf:rocky_linux:-"
}
}
}
],
"category": "vendor",
"name": "RESF"
},
{
"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:-"
}
}
},
{
"branches": [
{
"category": "product_version_range",
"name": "Container Platform \u003c4.15.64",
"product": {
"name": "Red Hat OpenShift Container Platform \u003c4.15.64",
"product_id": "T054017"
}
},
{
"category": "product_version",
"name": "Container Platform 4.15.64",
"product": {
"name": "Red Hat OpenShift Container Platform 4.15.64",
"product_id": "T054017-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:redhat:openshift:container_platform__4.15.64"
}
}
},
{
"category": "product_version_range",
"name": "Container Platform \u003c4.17.54",
"product": {
"name": "Red Hat OpenShift Container Platform \u003c4.17.54",
"product_id": "T054403"
}
},
{
"category": "product_version",
"name": "Container Platform 4.17.54",
"product": {
"name": "Red Hat OpenShift Container Platform 4.17.54",
"product_id": "T054403-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:redhat:openshift:container_platform__4.17.54"
}
}
}
],
"category": "product_name",
"name": "OpenShift"
}
],
"category": "vendor",
"name": "Red Hat"
},
{
"branches": [
{
"category": "product_name",
"name": "Ubuntu Linux",
"product": {
"name": "Ubuntu Linux",
"product_id": "T051700",
"product_identification_helper": {
"cpe": "cpe:/o:canonical:ubuntu_linux:-"
}
}
}
],
"category": "vendor",
"name": "Ubuntu"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2026-3497",
"product_status": {
"known_affected": [
"2951",
"67646",
"T053291",
"T051700",
"T051698",
"T054403",
"T004914",
"T054017",
"T032255",
"74185"
]
},
"release_date": "2026-03-12T23:00:00.000+00:00",
"title": "CVE-2026-3497"
}
]
}
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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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