WID-SEC-W-2026-2190
Vulnerability from csaf_certbund - Published: 2026-07-02 22:00 - Updated: 2026-07-21 22:00Summary
Linux Kernel: Mehrere Schwachstellen ermöglichen 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: Der Kernel stellt den Kern des Linux Betriebssystems dar.
Angriff: Ein lokaler Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen.
Betroffene Betriebssysteme: - Linux
Affected products
Known affected
12 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Open Source Linux Kernel <6.1.176
Open Source / Linux Kernel
|
<6.1.176 | ||
|
Open Source Linux Kernel <6.6.143
Open Source / Linux Kernel
|
<6.6.143 | ||
|
Open Source Linux Kernel <6.12.93
Open Source / Linux Kernel
|
<6.12.93 | ||
|
Debian Linux
Debian
|
cpe:/o:debian:debian_linux:-
|
— | |
|
Ubuntu Linux
Ubuntu
|
cpe:/o:canonical:ubuntu_linux:-
|
— | |
|
SUSE Linux
SUSE
|
cpe:/o:suse:suse_linux:-
|
— | |
|
Open Source Linux Kernel <6.18.35
Open Source / Linux Kernel
|
<6.18.35 | ||
|
Microsoft Azure Linux azl3
Microsoft / Azure Linux
|
cpe:/o:microsoft:azure_linux:azl3
|
azl3 | |
|
Open Source Linux Kernel <7.0.12
Open Source / Linux Kernel
|
<7.0.12 | ||
|
Open Source Linux Kernel <7.1
Open Source / Linux Kernel
|
<7.1 | ||
|
Open Source Linux Kernel <5.10.259
Open Source / Linux Kernel
|
<5.10.259 | ||
|
Open Source Linux Kernel <5.15.210
Open Source / Linux Kernel
|
<5.15.210 |
Affected products
Known affected
12 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Open Source Linux Kernel <6.1.176
Open Source / Linux Kernel
|
<6.1.176 | ||
|
Open Source Linux Kernel <6.6.143
Open Source / Linux Kernel
|
<6.6.143 | ||
|
Open Source Linux Kernel <6.12.93
Open Source / Linux Kernel
|
<6.12.93 | ||
|
Debian Linux
Debian
|
cpe:/o:debian:debian_linux:-
|
— | |
|
Ubuntu Linux
Ubuntu
|
cpe:/o:canonical:ubuntu_linux:-
|
— | |
|
SUSE Linux
SUSE
|
cpe:/o:suse:suse_linux:-
|
— | |
|
Open Source Linux Kernel <6.18.35
Open Source / Linux Kernel
|
<6.18.35 | ||
|
Microsoft Azure Linux azl3
Microsoft / Azure Linux
|
cpe:/o:microsoft:azure_linux:azl3
|
azl3 | |
|
Open Source Linux Kernel <7.0.12
Open Source / Linux Kernel
|
<7.0.12 | ||
|
Open Source Linux Kernel <7.1
Open Source / Linux Kernel
|
<7.1 | ||
|
Open Source Linux Kernel <5.10.259
Open Source / Linux Kernel
|
<5.10.259 | ||
|
Open Source Linux Kernel <5.15.210
Open Source / Linux Kernel
|
<5.15.210 |
References
14 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": "Der Kernel stellt den Kern des Linux Betriebssystems dar.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein lokaler Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
"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-2026-2190 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2190.json"
},
{
"category": "self",
"summary": "WID-SEC-2026-2190 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2190"
},
{
"category": "external",
"summary": "Kernel CVE Announce Mailingliste",
"url": "https://lore.kernel.org/linux-cve-announce/"
},
{
"category": "external",
"summary": "Linux Kernel CVE Announcement CVE-2026-53357",
"url": "https://lore.kernel.org/linux-cve-announce/2026070234-CVE-2026-53357-18f1@gregkh/"
},
{
"category": "external",
"summary": "Linux Kernel CVE Announcement CVE-2026-53358",
"url": "https://lore.kernel.org/linux-cve-announce/2026070236-CVE-2026-53358-6f81@gregkh/"
},
{
"category": "external",
"summary": "Debian Security Advisory DLA-4671 vom 2026-07-05",
"url": "https://lists.debian.org/debian-lts-announce/2026/07/msg00012.html"
},
{
"category": "external",
"summary": "Debian Security Advisory DLA-4665 vom 2026-07-03",
"url": "https://lists.debian.org/debian-lts-announce/2026/07/msg00006.html"
},
{
"category": "external",
"summary": "Debian Security Advisory DLA-4664 vom 2026-07-03",
"url": "https://lists.debian.org/debian-lts-announce/2026/07/msg00005.html"
},
{
"category": "external",
"summary": "Microsoft Leitfaden f\u00fcr Sicherheitsupdates vom 2026-07-14",
"url": "https://msrc.microsoft.com/update-guide/"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:3130-1 vom 2026-07-20",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-July/027664.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8569-1 vom 2026-07-20",
"url": "https://ubuntu.com/security/notices/USN-8569-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8568-1 vom 2026-07-20",
"url": "https://ubuntu.com/security/notices/USN-8568-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8566-1 vom 2026-07-20",
"url": "https://ubuntu.com/security/notices/USN-8566-1"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:3156-1 vom 2026-07-21",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-July/027682.html"
}
],
"source_lang": "en-US",
"title": "Linux Kernel: Mehrere Schwachstellen erm\u00f6glichen Denial of Service",
"tracking": {
"current_release_date": "2026-07-21T22:00:00.000+00:00",
"generator": {
"date": "2026-07-22T09:19:47.802+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.6.0"
}
},
"id": "WID-SEC-W-2026-2190",
"initial_release_date": "2026-07-02T22:00:00.000+00:00",
"revision_history": [
{
"date": "2026-07-02T22:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2026-07-05T22:00:00.000+00:00",
"number": "2",
"summary": "Neue Updates von Debian aufgenommen"
},
{
"date": "2026-07-14T22:00:00.000+00:00",
"number": "3",
"summary": "Neue Updates aufgenommen"
},
{
"date": "2026-07-20T22:00:00.000+00:00",
"number": "4",
"summary": "Neue Updates von SUSE und Ubuntu aufgenommen"
},
{
"date": "2026-07-21T22:00:00.000+00:00",
"number": "5",
"summary": "Neue Updates von SUSE aufgenommen"
}
],
"status": "final",
"version": "5"
}
},
"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": [
{
"branches": [
{
"category": "product_version",
"name": "azl3",
"product": {
"name": "Microsoft Azure Linux azl3",
"product_id": "T049210",
"product_identification_helper": {
"cpe": "cpe:/o:microsoft:azure_linux:azl3"
}
}
}
],
"category": "product_name",
"name": "Azure Linux"
}
],
"category": "vendor",
"name": "Microsoft"
},
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c5.10.259",
"product": {
"name": "Open Source Linux Kernel \u003c5.10.259",
"product_id": "T056014"
}
},
{
"category": "product_version",
"name": "5.10.259",
"product": {
"name": "Open Source Linux Kernel 5.10.259",
"product_id": "T056014-fixed",
"product_identification_helper": {
"cpe": "cpe:/o:linux:linux_kernel:5.10.259"
}
}
},
{
"category": "product_version_range",
"name": "\u003c5.15.210",
"product": {
"name": "Open Source Linux Kernel \u003c5.15.210",
"product_id": "T056015"
}
},
{
"category": "product_version",
"name": "5.15.210",
"product": {
"name": "Open Source Linux Kernel 5.15.210",
"product_id": "T056015-fixed",
"product_identification_helper": {
"cpe": "cpe:/o:linux:linux_kernel:5.15.210"
}
}
},
{
"category": "product_version_range",
"name": "\u003c6.1.176",
"product": {
"name": "Open Source Linux Kernel \u003c6.1.176",
"product_id": "T056016"
}
},
{
"category": "product_version",
"name": "6.1.176",
"product": {
"name": "Open Source Linux Kernel 6.1.176",
"product_id": "T056016-fixed",
"product_identification_helper": {
"cpe": "cpe:/o:linux:linux_kernel:6.1.176"
}
}
},
{
"category": "product_version_range",
"name": "\u003c6.6.143",
"product": {
"name": "Open Source Linux Kernel \u003c6.6.143",
"product_id": "T056018"
}
},
{
"category": "product_version",
"name": "6.6.143",
"product": {
"name": "Open Source Linux Kernel 6.6.143",
"product_id": "T056018-fixed",
"product_identification_helper": {
"cpe": "cpe:/o:linux:linux_kernel:6.6.143"
}
}
},
{
"category": "product_version_range",
"name": "\u003c6.12.93",
"product": {
"name": "Open Source Linux Kernel \u003c6.12.93",
"product_id": "T056019"
}
},
{
"category": "product_version",
"name": "6.12.93",
"product": {
"name": "Open Source Linux Kernel 6.12.93",
"product_id": "T056019-fixed",
"product_identification_helper": {
"cpe": "cpe:/o:linux:linux_kernel:6.12.93"
}
}
},
{
"category": "product_version_range",
"name": "\u003c6.18.35",
"product": {
"name": "Open Source Linux Kernel \u003c6.18.35",
"product_id": "T056021"
}
},
{
"category": "product_version",
"name": "6.18.35",
"product": {
"name": "Open Source Linux Kernel 6.18.35",
"product_id": "T056021-fixed",
"product_identification_helper": {
"cpe": "cpe:/o:linux:linux_kernel:6.18.35"
}
}
},
{
"category": "product_version_range",
"name": "\u003c7.0.12",
"product": {
"name": "Open Source Linux Kernel \u003c7.0.12",
"product_id": "T056022"
}
},
{
"category": "product_version",
"name": "7.0.12",
"product": {
"name": "Open Source Linux Kernel 7.0.12",
"product_id": "T056022-fixed",
"product_identification_helper": {
"cpe": "cpe:/o:linux:linux_kernel:7.0.12"
}
}
},
{
"category": "product_version_range",
"name": "\u003c7.1",
"product": {
"name": "Open Source Linux Kernel \u003c7.1",
"product_id": "T056024"
}
},
{
"category": "product_version",
"name": "7.1",
"product": {
"name": "Open Source Linux Kernel 7.1",
"product_id": "T056024-fixed",
"product_identification_helper": {
"cpe": "cpe:/o:linux:linux_kernel:7.1"
}
}
}
],
"category": "product_name",
"name": "Linux Kernel"
}
],
"category": "vendor",
"name": "Open Source"
},
{
"branches": [
{
"category": "product_name",
"name": "SUSE Linux",
"product": {
"name": "SUSE Linux",
"product_id": "T054646",
"product_identification_helper": {
"cpe": "cpe:/o:suse:suse_linux:-"
}
}
}
],
"category": "vendor",
"name": "SUSE"
},
{
"branches": [
{
"category": "product_name",
"name": "Ubuntu Linux",
"product": {
"name": "Ubuntu Linux",
"product_id": "T055947",
"product_identification_helper": {
"cpe": "cpe:/o:canonical:ubuntu_linux:-"
}
}
}
],
"category": "vendor",
"name": "Ubuntu"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2026-53357",
"product_status": {
"known_affected": [
"T056016",
"T056018",
"T056019",
"2951",
"T055947",
"T054646",
"T056021",
"T049210",
"T056022",
"T056024",
"T056014",
"T056015"
]
},
"release_date": "2026-07-02T22:00:00.000+00:00",
"title": "CVE-2026-53357"
},
{
"cve": "CVE-2026-53358",
"product_status": {
"known_affected": [
"T056016",
"T056018",
"T056019",
"2951",
"T055947",
"T054646",
"T056021",
"T049210",
"T056022",
"T056024",
"T056014",
"T056015"
]
},
"release_date": "2026-07-02T22:00:00.000+00:00",
"title": "CVE-2026-53358"
}
]
}
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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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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