WID-SEC-W-2023-2900
Vulnerability from csaf_certbund - Published: 2023-11-14 23:00 - Updated: 2024-09-22 22:00Es besteht eine Schwachstelle in Xen. Dieser Fehler besteht in den IOMMU-Quarantäne-Seitentabellenebenen aufgrund einer Unstimmigkeit zwischen den Ebenen, die dazu führt, dass der Lese-/Schreibzugriff zwischen Gerätezuweisungen nicht mehr gelöscht wird. Ein lokaler Angreifer kann diese Schwachstelle ausnutzen, um vertrauliche Informationen offenzulegen.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Citrix Systems XenServer
Citrix Systems
|
cpe:/a:citrix:xenserver:-
|
— | |
|
SUSE Linux
SUSE
|
cpe:/o:suse:suse_linux:-
|
— | |
|
Open Source Xen <4.16.x
Open Source / Xen
|
<4.16.x | ||
|
Open Source Xen <4.17.x
Open Source / Xen
|
<4.17.x | ||
|
Open Source Xen <4.15.x
Open Source / Xen
|
<4.15.x | ||
|
Gentoo Linux
Gentoo
|
cpe:/o:gentoo:linux:-
|
— | |
|
Citrix Systems Hypervisor
Citrix Systems
|
cpe:/o:citrix:hypervisor:-
|
— | |
|
Fedora Linux
Fedora
|
cpe:/o:fedoraproject:fedora:-
|
— |
Es besteht eine Schwachstelle in Xen. Dieser Fehler besteht aufgrund eines unvollständigen Sicherheitsupdates für BTC/SRSO, das es ermöglicht, den Inhalt des Speichers anderer Maschinen zu ermitteln. Ein lokaler Angreifer kann diese Schwachstelle ausnutzen, um vertrauliche Informationen offenzulegen.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Citrix Systems XenServer
Citrix Systems
|
cpe:/a:citrix:xenserver:-
|
— | |
|
SUSE Linux
SUSE
|
cpe:/o:suse:suse_linux:-
|
— | |
|
Open Source Xen <4.15.x
Open Source / Xen
|
<4.15.x | ||
|
Gentoo Linux
Gentoo
|
cpe:/o:gentoo:linux:-
|
— | |
|
Citrix Systems Hypervisor
Citrix Systems
|
cpe:/o:citrix:hypervisor:-
|
— | |
|
Fedora Linux
Fedora
|
cpe:/o:fedoraproject:fedora:-
|
— |
{
"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": "Xen ist ein Virtueller-Maschinen-Monitor (VMM), der Hardware (x86, IA-64, PowerPC) f\u00fcr die darauf laufenden Systeme (Domains) paravirtualisiert.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein lokaler Angreifer kann mehrere Schwachstellen in Xen ausnutzen, um Informationen offenzulegen.",
"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-2023-2900 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-2900.json"
},
{
"category": "self",
"summary": "WID-SEC-2023-2900 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-2900"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2023:4945-1 vom 2023-12-21",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2023-December/017515.html"
},
{
"category": "external",
"summary": "Xen Security Advisory XSA-445 vom 2023-11-14",
"url": "https://xenbits.xen.org/xsa/advisory-445.html"
},
{
"category": "external",
"summary": "Xen Security Advisory XSA-446 vom 2023-11-14",
"url": "https://xenbits.xen.org/xsa/advisory-446.html"
},
{
"category": "external",
"summary": "Fedora Security Advisory FEDORA-2023-E62DA41072 vom 2023-11-15",
"url": "https://bodhi.fedoraproject.org/updates/FEDORA-2023-e62da41072"
},
{
"category": "external",
"summary": "Citrix Security Advisory CTX583037 vom 2023-11-15",
"url": "https://support.citrix.com/article/CTX583037"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2023:4466-1 vom 2023-11-16",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2023-November/017053.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2023:4476-1 vom 2023-11-17",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2023-November/017058.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2023:4475-1 vom 2023-11-17",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2023-November/017059.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2023:4484-1 vom 2023-11-20",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2023-November/017126.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2023:4485-1 vom 2023-11-20",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2023-November/017125.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2023:4486-1 vom 2023-11-20",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2023-November/017124.html"
},
{
"category": "external",
"summary": "Gentoo Linux Security Advisory GLSA-202409-10 vom 2024-09-22",
"url": "https://security.gentoo.org/glsa/202409-10"
}
],
"source_lang": "en-US",
"title": "Xen: Mehrere Schwachstellen erm\u00f6glichen Offenlegung von Informationen",
"tracking": {
"current_release_date": "2024-09-22T22:00:00.000+00:00",
"generator": {
"date": "2024-09-23T08:05:16.752+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.3.8"
}
},
"id": "WID-SEC-W-2023-2900",
"initial_release_date": "2023-11-14T23:00:00.000+00:00",
"revision_history": [
{
"date": "2023-11-14T23:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2023-11-15T23:00:00.000+00:00",
"number": "2",
"summary": "Neue Updates von Fedora und Citrix aufgenommen"
},
{
"date": "2023-11-16T23:00:00.000+00:00",
"number": "3",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2023-11-20T23:00:00.000+00:00",
"number": "4",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2023-12-21T23:00:00.000+00:00",
"number": "5",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2024-09-22T22:00:00.000+00:00",
"number": "6",
"summary": "Neue Updates von Gentoo aufgenommen"
}
],
"status": "final",
"version": "6"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"category": "product_name",
"name": "Citrix Systems Hypervisor",
"product": {
"name": "Citrix Systems Hypervisor",
"product_id": "T016872",
"product_identification_helper": {
"cpe": "cpe:/o:citrix:hypervisor:-"
}
}
},
{
"category": "product_name",
"name": "Citrix Systems XenServer",
"product": {
"name": "Citrix Systems XenServer",
"product_id": "T004077",
"product_identification_helper": {
"cpe": "cpe:/a:citrix:xenserver:-"
}
}
}
],
"category": "vendor",
"name": "Citrix Systems"
},
{
"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": [
{
"category": "product_name",
"name": "Gentoo Linux",
"product": {
"name": "Gentoo Linux",
"product_id": "T012167",
"product_identification_helper": {
"cpe": "cpe:/o:gentoo:linux:-"
}
}
}
],
"category": "vendor",
"name": "Gentoo"
},
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c4.17.x",
"product": {
"name": "Open Source Xen \u003c4.17.x",
"product_id": "T031107"
}
},
{
"category": "product_version",
"name": "4.17.x",
"product": {
"name": "Open Source Xen 4.17.x",
"product_id": "T031107-fixed",
"product_identification_helper": {
"cpe": "cpe:/o:xen:xen:4.17.x"
}
}
},
{
"category": "product_version_range",
"name": "\u003c4.16.x",
"product": {
"name": "Open Source Xen \u003c4.16.x",
"product_id": "T031108"
}
},
{
"category": "product_version",
"name": "4.16.x",
"product": {
"name": "Open Source Xen 4.16.x",
"product_id": "T031108-fixed",
"product_identification_helper": {
"cpe": "cpe:/o:xen:xen:4.16.x"
}
}
},
{
"category": "product_version_range",
"name": "\u003c4.15.x",
"product": {
"name": "Open Source Xen \u003c4.15.x",
"product_id": "T031109"
}
},
{
"category": "product_version",
"name": "4.15.x",
"product": {
"name": "Open Source Xen 4.15.x",
"product_id": "T031109-fixed",
"product_identification_helper": {
"cpe": "cpe:/o:xen:xen:4.15.x"
}
}
}
],
"category": "product_name",
"name": "Xen"
}
],
"category": "vendor",
"name": "Open Source"
},
{
"branches": [
{
"category": "product_name",
"name": "SUSE Linux",
"product": {
"name": "SUSE Linux",
"product_id": "T002207",
"product_identification_helper": {
"cpe": "cpe:/o:suse:suse_linux:-"
}
}
}
],
"category": "vendor",
"name": "SUSE"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2023-46835",
"notes": [
{
"category": "description",
"text": "Es besteht eine Schwachstelle in Xen. Dieser Fehler besteht in den IOMMU-Quarant\u00e4ne-Seitentabellenebenen aufgrund einer Unstimmigkeit zwischen den Ebenen, die dazu f\u00fchrt, dass der Lese-/Schreibzugriff zwischen Ger\u00e4tezuweisungen nicht mehr gel\u00f6scht wird. Ein lokaler Angreifer kann diese Schwachstelle ausnutzen, um vertrauliche Informationen offenzulegen."
}
],
"product_status": {
"known_affected": [
"T004077",
"T002207",
"T031108",
"T031107",
"T031109",
"T012167",
"T016872",
"74185"
]
},
"release_date": "2023-11-14T23:00:00.000+00:00",
"title": "CVE-2023-46835"
},
{
"cve": "CVE-2023-46836",
"notes": [
{
"category": "description",
"text": "Es besteht eine Schwachstelle in Xen. Dieser Fehler besteht aufgrund eines unvollst\u00e4ndigen Sicherheitsupdates f\u00fcr BTC/SRSO, das es erm\u00f6glicht, den Inhalt des Speichers anderer Maschinen zu ermitteln. Ein lokaler Angreifer kann diese Schwachstelle ausnutzen, um vertrauliche Informationen offenzulegen."
}
],
"product_status": {
"known_affected": [
"T004077",
"T002207",
"T031109",
"T012167",
"T016872",
"74185"
]
},
"release_date": "2023-11-14T23:00:00.000+00:00",
"title": "CVE-2023-46836"
}
]
}
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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