wid-sec-w-2023-2177
Vulnerability from csaf_certbund
Published
2023-08-27 22:00
Modified
2024-01-14 23:00
Summary
libssh2: Schwachstelle ermöglicht Denial of Service
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
libssh2 ist eine C Bibliothek für das Anbieten von SSH2 Diensten auf Client- und Serverseite. Sie kann genutzt werden, um aus der Ferne Programme auszuführen, Dateien zu übertragen oder als sicherer und transparenter Tunnel für entfernte Programme genutzt werden.
Angriff
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in libssh2 ausnutzen, um einen Denial of Service Angriff durchzuführen.
Betroffene Betriebssysteme
- Linux
{
"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": "libssh2 ist eine C Bibliothek f\u00fcr das Anbieten von SSH2 Diensten auf Client- und Serverseite. Sie kann genutzt werden, um aus der Ferne Programme auszuf\u00fchren, Dateien zu \u00fcbertragen oder als sicherer und transparenter Tunnel f\u00fcr entfernte Programme genutzt werden.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in libssh2 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-2023-2177 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-2177.json"
},
{
"category": "self",
"summary": "WID-SEC-2023-2177 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-2177"
},
{
"category": "external",
"summary": "Ubuntu Security Notification vom 2023-08-27",
"url": "https://ubuntu.com/security/CVE-2020-22218"
},
{
"category": "external",
"summary": "Ubuntu Security Notification vom 2023-08-27",
"url": "https://github.com/libssh2/libssh2/pull/476"
},
{
"category": "external",
"summary": "Fedora Security Advisory FEDORA-EPEL-2023-1D852648CA vom 2023-09-04",
"url": "https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-1d852648ca"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2023:3555-1 vom 2023-09-08",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2023-September/016124.html"
},
{
"category": "external",
"summary": "Debian Security Advisory DLA-3559 vom 2023-09-08",
"url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00006.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6371-1 vom 2023-09-14",
"url": "https://ubuntu.com/security/notices/USN-6371-1"
},
{
"category": "external",
"summary": "Amazon Linux Security Advisory ALAS2-2023-2257 vom 2023-09-21",
"url": "https://alas.aws.amazon.com/AL2/ALAS-2023-2257.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2023:3738-1 vom 2023-09-22",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2023-September/016300.html"
},
{
"category": "external",
"summary": "Amazon Linux Security Advisory ALAS-2023-1834 vom 2023-09-26",
"url": "https://alas.aws.amazon.com/ALAS-2023-1834.html"
},
{
"category": "external",
"summary": "NetApp Security Advisory NTAP-20231006-0002 vom 2023-10-06",
"url": "https://security.netapp.com/advisory/ntap-20231006-0002/"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2023:5615 vom 2023-10-11",
"url": "https://access.redhat.com/errata/RHSA-2023:5615"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2023-5615 vom 2023-10-11",
"url": "https://linux.oracle.com/errata/ELSA-2023-5615.html"
},
{
"category": "external",
"summary": "IBM Security Bulletin 7070736 vom 2023-11-10",
"url": "https://www.ibm.com/support/pages/node/7070736"
},
{
"category": "external",
"summary": "HCL Security Advisory",
"url": "https://support.hcltechsw.com/csm?id=kb_article\u0026sysparm_article=KB0109376"
},
{
"category": "external",
"summary": "CentOS Security Advisory CESA-2023:5615 vom 2024-01-12",
"url": "https://lists.centos.org/pipermail/centos-announce/2024-January/099197.html"
}
],
"source_lang": "en-US",
"title": "libssh2: Schwachstelle erm\u00f6glicht Denial of Service",
"tracking": {
"current_release_date": "2024-01-14T23:00:00.000+00:00",
"generator": {
"date": "2024-02-15T17:41:56.374+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.3.0"
}
},
"id": "WID-SEC-W-2023-2177",
"initial_release_date": "2023-08-27T22:00:00.000+00:00",
"revision_history": [
{
"date": "2023-08-27T22:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2023-09-04T22:00:00.000+00:00",
"number": "2",
"summary": "Neue Updates von Fedora aufgenommen"
},
{
"date": "2023-09-10T22:00:00.000+00:00",
"number": "3",
"summary": "Neue Updates von SUSE und Debian aufgenommen"
},
{
"date": "2023-09-14T22:00:00.000+00:00",
"number": "4",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2023-09-20T22:00:00.000+00:00",
"number": "5",
"summary": "Neue Updates von Amazon aufgenommen"
},
{
"date": "2023-09-24T22:00:00.000+00:00",
"number": "6",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2023-09-25T22:00:00.000+00:00",
"number": "7",
"summary": "Neue Updates von Amazon aufgenommen"
},
{
"date": "2023-10-08T22:00:00.000+00:00",
"number": "8",
"summary": "Neue Updates von NetApp aufgenommen"
},
{
"date": "2023-10-10T22:00:00.000+00:00",
"number": "9",
"summary": "Neue Updates von Red Hat und Oracle Linux aufgenommen"
},
{
"date": "2023-11-12T23:00:00.000+00:00",
"number": "10",
"summary": "Neue Updates von IBM aufgenommen"
},
{
"date": "2023-12-21T23:00:00.000+00:00",
"number": "11",
"summary": "Neue Updates von HCL aufgenommen"
},
{
"date": "2024-01-14T23:00:00.000+00:00",
"number": "12",
"summary": "Neue Updates von CentOS aufgenommen"
}
],
"status": "final",
"version": "12"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"category": "product_name",
"name": "Amazon Linux 2",
"product": {
"name": "Amazon Linux 2",
"product_id": "398363",
"product_identification_helper": {
"cpe": "cpe:/o:amazon:linux_2:-"
}
}
}
],
"category": "vendor",
"name": "Amazon"
},
{
"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": [
{
"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": [
{
"branches": [
{
"category": "product_name",
"name": "HCL BigFix \u003c 10.0.10",
"product": {
"name": "HCL BigFix \u003c 10.0.10",
"product_id": "T024886",
"product_identification_helper": {
"cpe": "cpe:/a:hcltech:bigfix:10.0.10.0"
}
}
},
{
"category": "product_name",
"name": "HCL BigFix \u003c 9.5.23",
"product": {
"name": "HCL BigFix \u003c 9.5.23",
"product_id": "T030464",
"product_identification_helper": {
"cpe": "cpe:/a:hcltech:bigfix:9.5.23"
}
}
},
{
"category": "product_name",
"name": "HCL BigFix \u003c 11.0.1",
"product": {
"name": "HCL BigFix \u003c 11.0.1",
"product_id": "T031805",
"product_identification_helper": {
"cpe": "cpe:/a:hcltech:bigfix:11.0.1"
}
}
}
],
"category": "product_name",
"name": "BigFix"
}
],
"category": "vendor",
"name": "HCL"
},
{
"branches": [
{
"category": "product_name",
"name": "IBM QRadar SIEM \u003c 7.5.0 UP7 IF02",
"product": {
"name": "IBM QRadar SIEM \u003c 7.5.0 UP7 IF02",
"product_id": "T031043",
"product_identification_helper": {
"cpe": "cpe:/a:ibm:qradar_siem:7.5.0_up7_if02"
}
}
}
],
"category": "vendor",
"name": "IBM"
},
{
"branches": [
{
"category": "product_name",
"name": "NetApp ActiveIQ Unified Manager",
"product": {
"name": "NetApp ActiveIQ Unified Manager",
"product_id": "T026333",
"product_identification_helper": {
"cpe": "cpe:/a:netapp:active_iq_unified_manager:vmware_vsphere"
}
}
}
],
"category": "vendor",
"name": "NetApp"
},
{
"branches": [
{
"category": "product_name",
"name": "Open Source CentOS",
"product": {
"name": "Open Source CentOS",
"product_id": "1727",
"product_identification_helper": {
"cpe": "cpe:/o:centos:centos:-"
}
}
},
{
"category": "product_name",
"name": "Open Source libssh2 \u003c= 1.10.0",
"product": {
"name": "Open Source libssh2 \u003c= 1.10.0",
"product_id": "T029570",
"product_identification_helper": {
"cpe": "cpe:/a:libssh2:libssh2:1.10.0"
}
}
}
],
"category": "vendor",
"name": "Open Source"
},
{
"branches": [
{
"category": "product_name",
"name": "Oracle Linux",
"product": {
"name": "Oracle Linux",
"product_id": "T004914",
"product_identification_helper": {
"cpe": "cpe:/o:oracle:linux:-"
}
}
}
],
"category": "vendor",
"name": "Oracle"
},
{
"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": "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-2020-22218",
"notes": [
{
"category": "description",
"text": "Es besteht eine Schwachstelle in libssh2. Dieser Fehler existiert in der _libssh2_packet_add Funktion aufgrund eines Out-of-bounds Write, der es erlaubt, auf Speicher au\u00dferhalb der Grenzen zuzugreifen. Ein Angreifer kann diese Schwachstelle ausnutzen, um einen Denial-of-Service-Zustand zu verursachen."
}
],
"product_status": {
"known_affected": [
"T030464",
"67646",
"T004914",
"T031043",
"74185",
"2951",
"T002207",
"T024886",
"T000126",
"398363",
"T031805",
"1727",
"T026333"
],
"last_affected": [
"T029570"
]
},
"release_date": "2023-08-27T22:00:00Z",
"title": "CVE-2020-22218"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.