WID-SEC-W-2026-1057
Vulnerability from csaf_certbund - Published: 2026-04-12 22:00 - Updated: 2026-08-31 22:00Summary
GNU tar: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen
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: GNU Tar ist ein populäres Programm zur Verarbeitung von Archivdateien. Es ist in vielen Linux Distributionen enthalten.
Angriff: Ein lokaler Angreifer kann eine Schwachstelle in GNU tar ausnutzen, um Sicherheitsvorkehrungen zu umgehen.
Betroffene Betriebssysteme: - Linux
- UNIX
- Windows
Affected products
Known affected
7 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Dell Secure Connect Gateway <5.36.00.16
Dell / Secure Connect Gateway
|
<5.36.00.16 | ||
|
SUSE Linux
SUSE
|
cpe:/o:suse:suse_linux:-
|
— | |
|
RESF Rocky Linux
RESF
|
cpe:/o:resf:rocky_linux:-
|
— | |
|
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:-
|
— | |
|
Open Source GNU tar
Open Source
|
cpe:/a:gnu:tar:-
|
— |
References
17 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": "GNU Tar ist ein popul\u00e4res Programm zur Verarbeitung von Archivdateien. Es ist in vielen Linux Distributionen enthalten.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein lokaler Angreifer kann eine Schwachstelle in GNU tar ausnutzen, um Sicherheitsvorkehrungen zu umgehen.",
"title": "Angriff"
},
{
"category": "general",
"text": "- Linux\n- UNIX\n- Windows",
"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-2026-1057 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1057.json"
},
{
"category": "self",
"summary": "WID-SEC-2026-1057 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1057"
},
{
"category": "external",
"summary": "NIST Vulnerability Database vom 2026-04-12",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5704"
},
{
"category": "external",
"summary": "OSS Security Mailing List vom 2026-04-12",
"url": "https://seclists.org/oss-sec/2026/q2/104"
},
{
"category": "external",
"summary": "RedHat Bugzilla vom 2026-04-12",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2455360"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8477-1 vom 2026-06-26",
"url": "https://ubuntu.com/security/notices/USN-8477-1"
},
{
"category": "external",
"summary": "openSUSE Security Update OPENSUSE-SU-2026:11125-1 vom 2026-06-28",
"url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/MEVZDBXI7TJLVUUWDHDN3SBKJFWWBICQ/"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:22289-1 vom 2026-06-29",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-June/027036.html"
},
{
"category": "external",
"summary": "openSUSE Security Update OPENSUSE-SU-2026:21070-1 vom 2026-06-30",
"url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/MZEM7I7VWBK6BZVQH4CS7YJRILST7V7F/"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:2714-1 vom 2026-06-30",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-June/027076.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:22377-1 vom 2026-07-01",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-July/027113.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8477-2 vom 2026-07-17",
"url": "https://ubuntu.com/security/notices/USN-8477-2"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8477-3 vom 2026-07-22",
"url": "https://ubuntu.com/security/notices/USN-8477-3"
},
{
"category": "external",
"summary": "Dell Security Advisory DSA-2026-386 vom 2026-09-01",
"url": "https://www.dell.com/support/kbdoc/000503504/dsa-2026-386-security-update-f"
},
{
"category": "external",
"summary": "Rocky Linux Security Advisory RLSA-2026:61581 vom 2026-09-01",
"url": "https://errata.build.resf.org/RLSA-2026:61581"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:61783 vom 2026-09-01",
"url": "https://access.redhat.com/errata/RHSA-2026:61783"
},
{
"category": "external",
"summary": "Dell Security Advisory DSA-2026-385 vom 2026-08-31",
"url": "https://www.dell.com/support/kbdoc/de-de/000503592/dsa-2026-385-security-update-for-dell-secure-connect-gateway-policy-manager-multiple-vulnerabilities"
}
],
"source_lang": "en-US",
"title": "GNU tar: Schwachstelle erm\u00f6glicht Umgehen von Sicherheitsvorkehrungen",
"tracking": {
"current_release_date": "2026-08-31T22:00:00.000+00:00",
"generator": {
"date": "2026-09-01T10:58:34.837+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.6.0"
}
},
"id": "WID-SEC-W-2026-1057",
"initial_release_date": "2026-04-12T22:00:00.000+00:00",
"revision_history": [
{
"date": "2026-04-12T22:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2026-06-25T22:00:00.000+00:00",
"number": "2",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2026-06-28T22:00:00.000+00:00",
"number": "3",
"summary": "Neue Updates von openSUSE aufgenommen"
},
{
"date": "2026-06-29T22:00:00.000+00:00",
"number": "4",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-06-30T22:00:00.000+00:00",
"number": "5",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-07-01T22:00:00.000+00:00",
"number": "6",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-07-16T22:00:00.000+00:00",
"number": "7",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2026-07-22T22:00:00.000+00:00",
"number": "8",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2026-08-31T22:00:00.000+00:00",
"number": "9",
"summary": "Neue Updates von Dell, Rocky Enterprise Software Foundation und Red Hat aufgenommen"
}
],
"status": "final",
"version": "9"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c5.36.00.16",
"product": {
"name": "Dell Secure Connect Gateway \u003c5.36.00.16",
"product_id": "T058878"
}
},
{
"category": "product_version",
"name": "5.36.00.16",
"product": {
"name": "Dell Secure Connect Gateway 5.36.00.16",
"product_id": "T058878-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:dell:secure_connect_gateway:5.36.00.16"
}
}
}
],
"category": "product_name",
"name": "Secure Connect Gateway"
}
],
"category": "vendor",
"name": "Dell"
},
{
"branches": [
{
"category": "product_name",
"name": "Open Source GNU tar",
"product": {
"name": "Open Source GNU tar",
"product_id": "T052685",
"product_identification_helper": {
"cpe": "cpe:/a:gnu:tar:-"
}
}
}
],
"category": "vendor",
"name": "Open Source"
},
{
"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": "T002207",
"product_identification_helper": {
"cpe": "cpe:/o:suse:suse_linux:-"
}
}
},
{
"category": "product_name",
"name": "SUSE openSUSE",
"product": {
"name": "SUSE openSUSE",
"product_id": "T027843",
"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": "T000126",
"product_identification_helper": {
"cpe": "cpe:/o:canonical:ubuntu_linux:-"
}
}
}
],
"category": "vendor",
"name": "Ubuntu"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2026-5704",
"product_status": {
"known_affected": [
"T058878",
"T002207",
"T054581",
"67646",
"T000126",
"T027843",
"T052685"
]
},
"release_date": "2026-04-12T22:00:00.000+00:00",
"title": "CVE-2026-5704"
}
]
}
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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.
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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