wid-sec-w-2022-0143
Vulnerability from csaf_certbund
Published
2021-06-03 22:00
Modified
2024-01-30 23:00
Summary
avahi: 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
Avahi ist die Implementierung einer Technik zur Vernetzung von Geräten in einem lokalen Netzwerk, ohne dass diese manuell konfiguriert werden müssen.
Angriff
Ein lokaler Angreifer kann eine Schwachstelle in avahi ausnutzen, um einen Denial of Service Angriff durchzuführen.
Betroffene Betriebssysteme
- UNIX - Linux


To clipboard 

{
   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 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.",
         },
         {
            category: "description",
            text: "Avahi ist die Implementierung einer Technik zur Vernetzung von Geräten in einem lokalen Netzwerk, ohne dass diese manuell konfiguriert werden müssen.",
            title: "Produktbeschreibung",
         },
         {
            category: "summary",
            text: "Ein lokaler Angreifer kann eine Schwachstelle in avahi ausnutzen, um einen Denial of Service Angriff durchzuführen.",
            title: "Angriff",
         },
         {
            category: "general",
            text: "- UNIX\n- Linux",
            title: "Betroffene Betriebssysteme",
         },
      ],
      publisher: {
         category: "other",
         contact_details: "csaf-provider@cert-bund.de",
         name: "Bundesamt für Sicherheit in der Informationstechnik",
         namespace: "https://www.bsi.bund.de",
      },
      references: [
         {
            category: "self",
            summary: "WID-SEC-W-2022-0143 - CSAF Version",
            url: "https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2022-0143.json",
         },
         {
            category: "self",
            summary: "WID-SEC-2022-0143 - Portal Version",
            url: "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2022-0143",
         },
         {
            category: "external",
            summary: "Github - Avahi Security Advisory vom 2021-06-03",
            url: "https://github.com/lathiat/avahi/pull/330",
         },
         {
            category: "external",
            summary: "SUSE Security Advisory SUSE-SU-2021:1494-2 vom 2021-06-03",
            url: "https://lists.suse.com/pipermail/sle-security-updates/2021-June/008929.html",
         },
         {
            category: "external",
            summary: "Red Hat Bugzilla - Bug 1939614 vom 2021-06-03",
            url: "https://bugzilla.redhat.com/show_bug.cgi?id=1939614",
         },
         {
            category: "external",
            summary: "SUSE Security Update SUSE-SU-2021:1493-2 vom 2021-06-04",
            url: "https://lists.suse.com/pipermail/sle-security-updates/2021-June/008937.html",
         },
         {
            category: "external",
            summary: "Ubuntu Security Notice USN-5008-1 vom 2021-07-07",
            url: "https://ubuntu.com/security/notices/USN-5008-1",
         },
         {
            category: "external",
            summary: "Ubuntu Security Notice USN-5008-2 vom 2021-07-07",
            url: "https://ubuntu.com/security/notices/USN-5008-2",
         },
         {
            category: "external",
            summary: "Debian Security Advisory DLA-3047 vom 2022-06-07",
            url: "https://lists.debian.org/debian-lts-announce/2022/06/msg00009.html",
         },
         {
            category: "external",
            summary: "Debian Security Advisory DLA-3466 vom 2023-06-22",
            url: "https://lists.debian.org/debian-lts-announce/2023/06/msg00028.html",
         },
         {
            category: "external",
            summary: "Red Hat Security Advisory RHSA-2023:6707 vom 2023-11-07",
            url: "https://access.redhat.com/errata/RHSA-2023:6707",
         },
         {
            category: "external",
            summary: "Amazon Linux Security Advisory ALAS-2023-2372 vom 2023-12-05",
            url: "https://alas.aws.amazon.com/AL2/ALAS-2023-2372.html",
         },
         {
            category: "external",
            summary: "Red Hat Security Advisory RHSA-2023:7836 vom 2023-12-14",
            url: "https://access.redhat.com/errata/RHSA-2023:7836",
         },
         {
            category: "external",
            summary: "Oracle Linux Security Advisory ELSA-2023-7836 vom 2023-12-18",
            url: "https://linux.oracle.com/errata/ELSA-2023-7836.html",
         },
         {
            category: "external",
            summary: "Red Hat Security Advisory RHSA-2024:0097 vom 2024-01-10",
            url: "https://access.redhat.com/errata/RHSA-2024:0097",
         },
         {
            category: "external",
            summary: "RedHat Security Advisory",
            url: "https://access.redhat.com/errata/RHSA-2024:0418",
         },
         {
            category: "external",
            summary: "Red Hat Security Advisory RHSA-2024:0576 vom 2024-01-30",
            url: "https://access.redhat.com/errata/RHSA-2024:0576",
         },
      ],
      source_lang: "en-US",
      title: "avahi: Schwachstelle ermöglicht Denial of Service",
      tracking: {
         current_release_date: "2024-01-30T23:00:00.000+00:00",
         generator: {
            date: "2024-08-15T17:26:50.288+00:00",
            engine: {
               name: "BSI-WID",
               version: "1.3.5",
            },
         },
         id: "WID-SEC-W-2022-0143",
         initial_release_date: "2021-06-03T22:00:00.000+00:00",
         revision_history: [
            {
               date: "2021-06-03T22:00:00.000+00:00",
               number: "1",
               summary: "Initiale Fassung",
            },
            {
               date: "2021-06-06T22:00:00.000+00:00",
               number: "2",
               summary: "Neue Updates von SUSE aufgenommen",
            },
            {
               date: "2021-07-07T22:00:00.000+00:00",
               number: "3",
               summary: "Neue Updates von Ubuntu aufgenommen",
            },
            {
               date: "2022-06-07T22:00:00.000+00:00",
               number: "4",
               summary: "Neue Updates von Debian aufgenommen",
            },
            {
               date: "2023-06-21T22:00:00.000+00:00",
               number: "5",
               summary: "Neue Updates von Debian aufgenommen",
            },
            {
               date: "2023-11-07T23:00:00.000+00:00",
               number: "6",
               summary: "Neue Updates von Red Hat aufgenommen",
            },
            {
               date: "2023-12-04T23:00:00.000+00:00",
               number: "7",
               summary: "Neue Updates von Amazon aufgenommen",
            },
            {
               date: "2023-12-14T23:00:00.000+00:00",
               number: "8",
               summary: "Neue Updates von Red Hat aufgenommen",
            },
            {
               date: "2023-12-17T23:00:00.000+00:00",
               number: "9",
               summary: "Neue Updates von Oracle Linux aufgenommen",
            },
            {
               date: "2024-01-09T23:00:00.000+00:00",
               number: "10",
               summary: "Neue Updates von Red Hat aufgenommen",
            },
            {
               date: "2024-01-24T23:00:00.000+00:00",
               number: "11",
               summary: "Neue Updates von Red Hat aufgenommen",
            },
            {
               date: "2024-01-30T23:00:00.000+00:00",
               number: "12",
               summary: "Neue Updates von Red Hat 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: "Open Source avahi",
                  product: {
                     name: "Open Source avahi",
                     product_id: "395904",
                     product_identification_helper: {
                        cpe: "cpe:/a:avahi:avahi:0.1",
                     },
                  },
               },
            ],
            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: "product_name",
                  name: "Red Hat Single Sign On < 7.6.6",
                  product: {
                     name: "Red Hat Single Sign On < 7.6.6",
                     product_id: "T031713",
                     product_identification_helper: {
                        cpe: "cpe:/a:redhat:single_sign_on:7.6.6",
                     },
                  },
               },
            ],
            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-2021-3468",
         notes: [
            {
               category: "description",
               text: "Es existiert eine Schwachstelle in avahi. Der \"avahi-deamon\" schreibt überlange Zeilen in \"/run/avahi-daemon/socket\". Ein lokaler Angreifer kann dies ausnutzen, um einen Denial-of-Service-Zustand auszulösen.",
            },
         ],
         product_status: {
            known_affected: [
               "2951",
               "T002207",
               "67646",
               "T000126",
               "T031713",
               "398363",
               "T004914",
               "395904",
            ],
         },
         release_date: "2021-06-03T22:00:00.000+00:00",
         title: "CVE-2021-3468",
      },
   ],
}


Log in or create an account to share your comment.

Security Advisory comment format.

This schema specifies the format of a comment related to a security advisory.

UUIDv4 of the comment
UUIDv4 of the Vulnerability-Lookup instance
When the comment was created originally
When the comment was last updated
Title of the comment
Description of the comment
The identifier of the vulnerability (CVE ID, GHSA-ID, PYSEC ID, etc.).



Tags
Taxonomy of the tags.




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.