WID-SEC-W-2026-2393
Vulnerability from csaf_certbund - Published: 2026-07-16 22:00 - Updated: 2026-09-01 22:00Summary
Ubuntu Linux (ubuntu-pro-client): Mehrere Schwachstellen
Severity
Hoch
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: Ubuntu Linux ist die Linux Distribution des Herstellers Canonical.
Angriff: Ein Angreifer kann mehrere Schwachstellen im ubuntu-pro-client von Ubuntu Linux ausnutzen, um beliebigen Programmcode mit Administratorrechten auszuführen und vertrauliche Informationen offenzulegen.
Betroffene Betriebssysteme: - Linux
Affected products
Known affected
8 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Ubuntu Linux ubuntu-pro-client <19.7ubuntu0.1
Ubuntu / Linux
|
ubuntu-pro-client <19.7ubuntu0.1 | ||
|
Ubuntu Linux ubuntu-pro-client <37.1ubuntu0~16.04.1
Ubuntu / Linux
|
ubuntu-pro-client <37.1ubuntu0~16.04.1 | ||
|
Ubuntu Linux ubuntu-pro-client <37.1ubuntu0~18.04.1
Ubuntu / Linux
|
ubuntu-pro-client <37.1ubuntu0~18.04.1 | ||
|
Ubuntu Linux
Ubuntu / Linux
|
cpe:/o:canonical:ubuntu_linux:-
|
— | |
|
Ubuntu Linux ubuntu-pro-client <37.1ubuntu0~20.04.1
Ubuntu / Linux
|
ubuntu-pro-client <37.1ubuntu0~20.04.1 | ||
|
Ubuntu Linux ubuntu-pro-client <37.2ubuntu0.1
Ubuntu / Linux
|
ubuntu-pro-client <37.2ubuntu0.1 | ||
|
Ubuntu Linux ubuntu-pro-client <37.2ubuntu~22.04.1
Ubuntu / Linux
|
ubuntu-pro-client <37.2ubuntu~22.04.1 | ||
|
Ubuntu Linux ubuntu-pro-client <37.2ubuntu~24.04.1
Ubuntu / Linux
|
ubuntu-pro-client <37.2ubuntu~24.04.1 |
Affected products
Known affected
8 products, the same list as for
CVE-2026-11386
Affected products
Known affected
8 products, the same list as for
CVE-2026-11386
References
4 references
{
"document": {
"aggregate_severity": {
"text": "hoch"
},
"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": "Ubuntu Linux ist die Linux Distribution des Herstellers Canonical.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein Angreifer kann mehrere Schwachstellen im ubuntu-pro-client von Ubuntu Linux ausnutzen, um beliebigen Programmcode mit Administratorrechten auszuf\u00fchren und vertrauliche Informationen offenzulegen.",
"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-2026-2393 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2393.json"
},
{
"category": "self",
"summary": "WID-SEC-2026-2393 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2393"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8555-1 vom 2026-07-16",
"url": "https://ubuntu.com/security/notices/USN-8555-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8555-2 vom 2026-09-01",
"url": "https://ubuntu.com/security/notices/USN-8555-2"
}
],
"source_lang": "en-US",
"title": "Ubuntu Linux (ubuntu-pro-client): Mehrere Schwachstellen",
"tracking": {
"current_release_date": "2026-09-01T22:00:00.000+00:00",
"generator": {
"date": "2026-09-02T10:23:35.135+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.6.0"
}
},
"id": "WID-SEC-W-2026-2393",
"initial_release_date": "2026-07-16T22:00:00.000+00:00",
"revision_history": [
{
"date": "2026-07-16T22:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2026-09-01T22:00:00.000+00:00",
"number": "2",
"summary": "Neue Updates von Ubuntu aufgenommen"
}
],
"status": "final",
"version": "2"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_name",
"name": "Ubuntu Linux",
"product": {
"name": "Ubuntu Linux",
"product_id": "T055947",
"product_identification_helper": {
"cpe": "cpe:/o:canonical:ubuntu_linux:-"
}
}
},
{
"category": "product_version_range",
"name": "ubuntu-pro-client \u003c19.7ubuntu0.1",
"product": {
"name": "Ubuntu Linux ubuntu-pro-client \u003c19.7ubuntu0.1",
"product_id": "T056757"
}
},
{
"category": "product_version",
"name": "ubuntu-pro-client 19.7ubuntu0.1",
"product": {
"name": "Ubuntu Linux ubuntu-pro-client 19.7ubuntu0.1",
"product_id": "T056757-fixed",
"product_identification_helper": {
"cpe": "cpe:/o:canonical:ubuntu_linux:ubuntu-pro-client__19.7ubuntu0.1"
}
}
},
{
"category": "product_version_range",
"name": "ubuntu-pro-client \u003c37.1ubuntu0~16.04.1",
"product": {
"name": "Ubuntu Linux ubuntu-pro-client \u003c37.1ubuntu0~16.04.1",
"product_id": "T056758"
}
},
{
"category": "product_version",
"name": "ubuntu-pro-client 37.1ubuntu0~16.04.1",
"product": {
"name": "Ubuntu Linux ubuntu-pro-client 37.1ubuntu0~16.04.1",
"product_id": "T056758-fixed",
"product_identification_helper": {
"cpe": "cpe:/o:canonical:ubuntu_linux:ubuntu-pro-client__37.1ubuntu016.04.1"
}
}
},
{
"category": "product_version_range",
"name": "ubuntu-pro-client \u003c37.1ubuntu0~18.04.1",
"product": {
"name": "Ubuntu Linux ubuntu-pro-client \u003c37.1ubuntu0~18.04.1",
"product_id": "T056759"
}
},
{
"category": "product_version",
"name": "ubuntu-pro-client 37.1ubuntu0~18.04.1",
"product": {
"name": "Ubuntu Linux ubuntu-pro-client 37.1ubuntu0~18.04.1",
"product_id": "T056759-fixed",
"product_identification_helper": {
"cpe": "cpe:/o:canonical:ubuntu_linux:ubuntu-pro-client__37.1ubuntu018.04.1"
}
}
},
{
"category": "product_version_range",
"name": "ubuntu-pro-client \u003c37.1ubuntu0~20.04.1",
"product": {
"name": "Ubuntu Linux ubuntu-pro-client \u003c37.1ubuntu0~20.04.1",
"product_id": "T056760"
}
},
{
"category": "product_version",
"name": "ubuntu-pro-client 37.1ubuntu0~20.04.1",
"product": {
"name": "Ubuntu Linux ubuntu-pro-client 37.1ubuntu0~20.04.1",
"product_id": "T056760-fixed",
"product_identification_helper": {
"cpe": "cpe:/o:canonical:ubuntu_linux:ubuntu-pro-client__37.1ubuntu020.04.1"
}
}
},
{
"category": "product_version_range",
"name": "ubuntu-pro-client \u003c37.2ubuntu0.1",
"product": {
"name": "Ubuntu Linux ubuntu-pro-client \u003c37.2ubuntu0.1",
"product_id": "T056761"
}
},
{
"category": "product_version",
"name": "ubuntu-pro-client 37.2ubuntu0.1",
"product": {
"name": "Ubuntu Linux ubuntu-pro-client 37.2ubuntu0.1",
"product_id": "T056761-fixed",
"product_identification_helper": {
"cpe": "cpe:/o:canonical:ubuntu_linux:ubuntu-pro-client__37.2ubuntu0.1"
}
}
},
{
"category": "product_version_range",
"name": "ubuntu-pro-client \u003c37.2ubuntu~22.04.1",
"product": {
"name": "Ubuntu Linux ubuntu-pro-client \u003c37.2ubuntu~22.04.1",
"product_id": "T056762"
}
},
{
"category": "product_version",
"name": "ubuntu-pro-client 37.2ubuntu~22.04.1",
"product": {
"name": "Ubuntu Linux ubuntu-pro-client 37.2ubuntu~22.04.1",
"product_id": "T056762-fixed",
"product_identification_helper": {
"cpe": "cpe:/o:canonical:ubuntu_linux:ubuntu-pro-client__37.2ubuntu22.04.1"
}
}
},
{
"category": "product_version_range",
"name": "ubuntu-pro-client \u003c37.2ubuntu~24.04.1",
"product": {
"name": "Ubuntu Linux ubuntu-pro-client \u003c37.2ubuntu~24.04.1",
"product_id": "T056763"
}
},
{
"category": "product_version",
"name": "ubuntu-pro-client 37.2ubuntu~24.04.1",
"product": {
"name": "Ubuntu Linux ubuntu-pro-client 37.2ubuntu~24.04.1",
"product_id": "T056763-fixed",
"product_identification_helper": {
"cpe": "cpe:/o:canonical:ubuntu_linux:ubuntu-pro-client__37.2ubuntu24.04.1"
}
}
}
],
"category": "product_name",
"name": "Linux"
}
],
"category": "vendor",
"name": "Ubuntu"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2026-11386",
"product_status": {
"known_affected": [
"T056757",
"T056758",
"T056759",
"T055947",
"T056760",
"T056761",
"T056762",
"T056763"
]
},
"release_date": "2026-07-16T22:00:00.000+00:00",
"title": "CVE-2026-11386"
},
{
"cve": "CVE-2026-12391",
"product_status": {
"known_affected": [
"T056757",
"T056758",
"T056759",
"T055947",
"T056760",
"T056761",
"T056762",
"T056763"
]
},
"release_date": "2026-07-16T22:00:00.000+00:00",
"title": "CVE-2026-12391"
},
{
"cve": "CVE-2026-9494",
"product_status": {
"known_affected": [
"T056757",
"T056758",
"T056759",
"T055947",
"T056760",
"T056761",
"T056762",
"T056763"
]
},
"release_date": "2026-07-16T22:00:00.000+00:00",
"title": "CVE-2026-9494"
}
]
}
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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.
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.
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.
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