WID-SEC-W-2026-3051
Vulnerability from csaf_certbund - Published: 2026-08-26 22:00 - Updated: 2026-11-09 23:00Summary
GNU libc: 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: Die GNU libc ist die Basis C Bibliothek unter Linux sowie anderen Unix-Betriebssystemen, welche die Systemaufrufe sowie Basisfunktionalität bereitstellt.
Angriff: Ein Angreifer kann eine Schwachstelle in GNU libc ausnutzen, um einen Denial of Service Angriff durchzuführen.
Betroffene Betriebssysteme: - Linux
- UNIX
Affected products
Known affected
9 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Oracle Linux
Oracle
|
cpe:/o:oracle:linux:-
|
— | |
|
Open Source GNU libc
Open Source
|
cpe:/a:gnu:glibc:-
|
— | |
|
RESF Rocky Linux
RESF
|
cpe:/o:resf:rocky_linux:-
|
— | |
|
IBM App Connect Enterprise Certified Container Operator <12.0.29
IBM / App Connect Enterprise
|
Certified Container Operator <12.0.29 | ||
|
Red Hat Enterprise Linux
Red Hat
|
cpe:/o:redhat:enterprise_linux:-
|
— | |
|
Ubuntu Linux
Ubuntu
|
cpe:/o:canonical:ubuntu_linux:-
|
— | |
|
SUSE openSUSE
SUSE
|
cpe:/o:suse:opensuse:-
|
— | |
|
SUSE Linux
SUSE
|
cpe:/o:suse:suse_linux:-
|
— | |
|
IBM App Connect Enterprise Certified Container Operator <13.7.0
IBM / App Connect Enterprise
|
Certified Container Operator <13.7.0 |
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": "Die GNU libc ist die Basis C Bibliothek unter Linux sowie anderen Unix-Betriebssystemen, welche die Systemaufrufe sowie Basisfunktionalit\u00e4t bereitstellt.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein Angreifer kann eine Schwachstelle in GNU libc ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
"title": "Angriff"
},
{
"category": "general",
"text": "- Linux\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-2026-3051 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3051.json"
},
{
"category": "self",
"summary": "WID-SEC-2026-3051 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-3051"
},
{
"category": "external",
"summary": "Red Hat Bugtracker 2524870 vom 2026-08-26",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2524870"
},
{
"category": "external",
"summary": "Red Hat Customer Portal CVE-2026-80489 vom 2026-08-26",
"url": "https://access.redhat.com/security/cve/cve-2026-80489"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8737-1 vom 2026-09-08",
"url": "https://ubuntu.com/security/notices/USN-8737-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8737-2 vom 2026-09-10",
"url": "https://ubuntu.com/security/notices/USN-8737-2"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:4204-1 vom 2026-09-16",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-September/029200.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:4250-1 vom 2026-09-17",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-September/029222.html"
},
{
"category": "external",
"summary": "openSUSE Security Update OPENSUSE-SU-2026:11787-1 vom 2026-09-17",
"url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/Q54FCSBPKQFVKRC6JKQIOT5A2KXINDME/"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:23738-1 vom 2026-09-21",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-September/029289.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:23830-1 vom 2026-09-22",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-September/029316.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:23929-1 vom 2026-10-01",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-October/029523.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:23934-1 vom 2026-10-01",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-October/029522.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:23957-1 vom 2026-10-01",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-October/029505.html"
},
{
"category": "external",
"summary": "openSUSE Security Update OPENSUSE-SU-2026:21968-1 vom 2026-10-01",
"url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/JMPXHF7JM362R22LGLLCKZRYUYJOLIOC/"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:79281 vom 2026-10-08",
"url": "https://access.redhat.com/errata/RHSA-2026:79281"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:4591-1 vom 2026-10-08",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-October/029727.html"
},
{
"category": "external",
"summary": "Rocky Linux Security Advisory RLSA-2026:79281 vom 2026-10-10",
"url": "https://errata.build.resf.org/RLSA-2026:79281"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:80798 vom 2026-10-12",
"url": "https://access.redhat.com/errata/RHSA-2026:80798"
},
{
"category": "external",
"summary": "Rocky Linux Security Advisory RLSA-2026:80798 vom 2026-10-14",
"url": "https://errata.build.resf.org/RLSA-2026:80798"
},
{
"category": "external",
"summary": "Rocky Linux Security Advisory RLSA-2026:84753 vom 2026-10-20",
"url": "https://errata.build.resf.org/RLSA-2026:84753"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:87400 vom 2026-10-22",
"url": "https://access.redhat.com/errata/RHSA-2026:87400"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:91001 vom 2026-10-27",
"url": "https://access.redhat.com/errata/RHSA-2026:91001"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-79281 vom 2026-11-02",
"url": "https://linux.oracle.com/errata/ELSA-2026-79281.html"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-76777 vom 2026-11-03",
"url": "https://linux.oracle.com/errata/ELSA-2026-76777.html"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:95264 vom 2026-11-04",
"url": "https://access.redhat.com/errata/RHSA-2026:95264"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-80798 vom 2026-11-04",
"url": "https://linux.oracle.com/errata/ELSA-2026-80798.html"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-500576 vom 2026-11-04",
"url": "https://linux.oracle.com/errata/ELSA-2026-500576.html"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-84753 vom 2026-11-04",
"url": "https://linux.oracle.com/errata/ELSA-2026-84753.html"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:95360 vom 2026-11-04",
"url": "https://access.redhat.com/errata/RHSA-2026:95360"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-76781 vom 2026-11-06",
"url": "https://linux.oracle.com/errata/ELSA-2026-76781.html"
},
{
"category": "external",
"summary": "IBM Security Bulletin 7296009 vom 2026-11-09",
"url": "https://www.ibm.com/support/pages/node/7296009"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-500586 vom 2026-11-09",
"url": "https://linux.oracle.com/errata/ELSA-2026-500586.html"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-96087 vom 2026-11-10",
"url": "https://linux.oracle.com/errata/ELSA-2026-96087.html"
}
],
"source_lang": "en-US",
"title": "GNU libc: Schwachstelle erm\u00f6glicht Denial of Service",
"tracking": {
"current_release_date": "2026-11-09T23:00:00.000+00:00",
"generator": {
"date": "2026-11-10T11:52:11.809+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.7.0"
}
},
"id": "WID-SEC-W-2026-3051",
"initial_release_date": "2026-08-26T22:00:00.000+00:00",
"revision_history": [
{
"date": "2026-08-26T22:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2026-09-08T22:00:00.000+00:00",
"number": "2",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2026-09-10T22:00:00.000+00:00",
"number": "3",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2026-09-14T22:00:00.000+00:00",
"number": "4",
"summary": "Referenz(en) aufgenommen: GLIBC-SA-2026-0017, GLIBC-SA-2026-0018, GLIBC-SA-2026-0019, GLIBC-SA-2026-0020"
},
{
"date": "2026-09-16T22:00:00.000+00:00",
"number": "5",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-09-17T22:00:00.000+00:00",
"number": "6",
"summary": "Neue Updates von SUSE und openSUSE aufgenommen"
},
{
"date": "2026-09-20T22:00:00.000+00:00",
"number": "7",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-09-22T22:00:00.000+00:00",
"number": "8",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-10-01T22:00:00.000+00:00",
"number": "9",
"summary": "Neue Updates von SUSE und openSUSE aufgenommen"
},
{
"date": "2026-10-08T22:00:00.000+00:00",
"number": "10",
"summary": "Neue Updates von Red Hat und SUSE aufgenommen"
},
{
"date": "2026-10-11T22:00:00.000+00:00",
"number": "11",
"summary": "Neue Updates von Rocky Enterprise Software Foundation aufgenommen"
},
{
"date": "2026-10-12T22:00:00.000+00:00",
"number": "12",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2026-10-13T22:00:00.000+00:00",
"number": "13",
"summary": "Neue Updates von Rocky Enterprise Software Foundation aufgenommen"
},
{
"date": "2026-10-20T22:00:00.000+00:00",
"number": "14",
"summary": "Neue Updates von Rocky Enterprise Software Foundation aufgenommen"
},
{
"date": "2026-10-21T22:00:00.000+00:00",
"number": "15",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2026-10-27T23:00:00.000+00:00",
"number": "16",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2026-11-02T23:00:00.000+00:00",
"number": "17",
"summary": "Neue Updates von Oracle Linux aufgenommen"
},
{
"date": "2026-11-03T23:00:00.000+00:00",
"number": "18",
"summary": "Neue Updates von Oracle Linux aufgenommen"
},
{
"date": "2026-11-04T23:00:00.000+00:00",
"number": "19",
"summary": "Neue Updates von Red Hat und Oracle Linux aufgenommen"
},
{
"date": "2026-11-08T23:00:00.000+00:00",
"number": "20",
"summary": "Neue Updates von Oracle Linux aufgenommen"
},
{
"date": "2026-11-09T23:00:00.000+00:00",
"number": "21",
"summary": "Neue Updates von IBM und Oracle Linux aufgenommen"
}
],
"status": "final",
"version": "21"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "Certified Container Operator \u003c13.7.0",
"product": {
"name": "IBM App Connect Enterprise Certified Container Operator \u003c13.7.0",
"product_id": "T062645"
}
},
{
"category": "product_version",
"name": "Certified Container Operator 13.7.0",
"product": {
"name": "IBM App Connect Enterprise Certified Container Operator 13.7.0",
"product_id": "T062645-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:ibm:app_connect_enterprise:certified_container_operator__13.7.0"
}
}
},
{
"category": "product_version_range",
"name": "Certified Container Operator \u003c12.0.29",
"product": {
"name": "IBM App Connect Enterprise Certified Container Operator \u003c12.0.29",
"product_id": "T062646"
}
},
{
"category": "product_version",
"name": "Certified Container Operator 12.0.29",
"product": {
"name": "IBM App Connect Enterprise Certified Container Operator 12.0.29",
"product_id": "T062646-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:ibm:app_connect_enterprise:certified_container_operator__12.0.29"
}
}
}
],
"category": "product_name",
"name": "App Connect Enterprise"
}
],
"category": "vendor",
"name": "IBM"
},
{
"branches": [
{
"category": "product_name",
"name": "Open Source GNU libc",
"product": {
"name": "Open Source GNU libc",
"product_id": "T058722",
"product_identification_helper": {
"cpe": "cpe:/a:gnu:glibc:-"
}
}
}
],
"category": "vendor",
"name": "Open Source"
},
{
"branches": [
{
"category": "product_name",
"name": "Oracle Linux",
"product": {
"name": "Oracle Linux",
"product_id": "T056236",
"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": "T054581",
"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:-"
}
}
}
],
"category": "vendor",
"name": "Red Hat"
},
{
"branches": [
{
"category": "product_name",
"name": "SUSE Linux",
"product": {
"name": "SUSE Linux",
"product_id": "T054646",
"product_identification_helper": {
"cpe": "cpe:/o:suse:suse_linux:-"
}
}
},
{
"category": "product_name",
"name": "SUSE openSUSE",
"product": {
"name": "SUSE openSUSE",
"product_id": "T055946",
"product_identification_helper": {
"cpe": "cpe:/o:suse:opensuse:-"
}
}
}
],
"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-2026-80489",
"product_status": {
"known_affected": [
"T056236",
"T058722",
"T054581",
"T062646",
"67646",
"T055947",
"T055946",
"T054646",
"T062645"
]
},
"release_date": "2026-08-26T22:00:00.000+00:00",
"title": "CVE-2026-80489"
}
]
}
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
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Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.