{
  "document" : {
    "aggregate_severity" : {
      "text" : "niedrig"
    },
    "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" : "Der Kernel stellt den Kern des Linux Betriebssystems dar.",
      "title" : "Produktbeschreibung"
    }, {
      "category" : "summary",
      "text" : "Ein lokaler Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um Informationen offenzulegen.",
      "title" : "Angriff"
    }, {
      "category" : "general",
      "text" : "- 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-2024-1439 - CSAF Version",
      "url" : "https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2024-1439.json"
    }, {
      "category" : "self",
      "summary" : "WID-SEC-2024-1439 - Portal Version",
      "url" : "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-1439"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Adivisory: CVE-2021-3655 vom 2021-07-20",
      "url" : "https://access.redhat.com/security/cve/CVE-2021-3655"
    }, {
      "category" : "external",
      "summary" : "Amazon Linux Security Advisory ALAS-2021-1696 vom 2021-08-06",
      "url" : "https://alas.aws.amazon.com/AL2/ALAS-2021-1696.html"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2021-9460 vom 2021-09-22",
      "url" : "http://linux.oracle.com/errata/ELSA-2021-9460.html"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2021-9459 vom 2021-09-22",
      "url" : "http://linux.oracle.com/errata/ELSA-2021-9459.html"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2021-9458 vom 2021-09-22",
      "url" : "http://linux.oracle.com/errata/ELSA-2021-9458.html"
    }, {
      "category" : "external",
      "summary" : "ORACLE OVMSA-2021-0031 vom 2021-09-22",
      "url" : "https://oss.oracle.com/pipermail/oraclevm-errata/2021-September/001030.html"
    }, {
      "category" : "external",
      "summary" : "Amazon Linux Security Advisory ALAS-2021-1539 vom 2021-10-05",
      "url" : "https://alas.aws.amazon.com/ALAS-2021-1539.html"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2021-9473 vom 2021-10-08",
      "url" : "http://linux.oracle.com/errata/ELSA-2021-9473.html"
    }, {
      "category" : "external",
      "summary" : "ORACLE OVMSA-2021-0035 vom 2021-10-12",
      "url" : "https://oss.oracle.com/pipermail/oraclevm-errata/2021-October/001033.html"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2021-9488 vom 2021-10-15",
      "url" : "http://linux.oracle.com/errata/ELSA-2021-9488.html"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2021-9485 vom 2021-10-15",
      "url" : "http://linux.oracle.com/errata/ELSA-2021-9485.html"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-5136-1 vom 2021-11-09",
      "url" : "https://ubuntu.com/security/notices/USN-5136-1"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2021:3641-1 vom 2021-11-09",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009709.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2021:3640-1 vom 2021-11-09",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009710.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2021:3642-1 vom 2021-11-09",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009708.html"
    }, {
      "category" : "external",
      "summary" : "Debian Security Advisory DLA-2785 vom 2021-10-16",
      "url" : "https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-5139-1 vom 2021-11-11",
      "url" : "https://ubuntu.com/security/notices/USN-5139-1"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2021:3658-1 vom 2021-11-11",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009719.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2021:3655-1 vom 2021-11-11",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009720.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2021:3675-1 vom 2021-11-16",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009734.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2021:3723-1 vom 2021-11-17",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009737.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2021:3748-1 vom 2021-11-19",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009756.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2021:3754-1 vom 2021-11-20",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009757.html"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-5162-1 vom 2021-12-01",
      "url" : "https://ubuntu.com/security/notices/USN-5162-1"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-5161-1 vom 2021-12-01",
      "url" : "https://ubuntu.com/security/notices/USN-5161-1"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-5163-1 vom 2021-12-01",
      "url" : "https://ubuntu.com/security/notices/USN-5163-1"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2021:14849-1 vom 2021-12-01",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2021-December/009784.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2021:3876-1 vom 2021-12-02",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2021-December/009810.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2021:3929-1 vom 2021-12-06",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2021-December/009844.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2021:3935-1 vom 2021-12-06",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2021-December/009856.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2021:3969-1 vom 2021-12-07",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2021-December/009871.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2021:3972-1 vom 2021-12-08",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2021-December/009872.html"
    }, {
      "category" : "external",
      "summary" : "Debian Security Advisory DLA-2843 vom 2021-12-16",
      "url" : "https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html"
    }, {
      "category" : "external",
      "summary" : "Amazon Linux Security Advisory ALASKERNEL-5.4-2022-008 vom 2022-01-31",
      "url" : "https://alas.aws.amazon.com/AL2/ALASKERNEL-5.4-2022-008.html"
    }, {
      "category" : "external",
      "summary" : "Amazon Linux Security Advisory ALASKERNEL-5.4-2022-006 vom 2022-01-31",
      "url" : "https://alas.aws.amazon.com/AL2/ALASKERNEL-5.4-2022-006.html"
    }, {
      "category" : "external",
      "summary" : "Amazon Linux Security Advisory ALASKERNEL-5.10-2022-004 vom 2022-01-31",
      "url" : "https://alas.aws.amazon.com/AL2/ALASKERNEL-5.10-2022-004.html"
    }, {
      "category" : "external",
      "summary" : "Amazon Linux Security Advisory ALASKERNEL-5.4-2024-073 vom 2024-06-25",
      "url" : "https://alas.aws.amazon.com/AL2/ALASKERNEL-5.4-2024-073.html"
    } ],
    "source_lang" : "en-US",
    "title" : "Linux Kernel: Schwachstelle ermöglicht Offenlegung von Informationen",
    "tracking" : {
      "current_release_date" : "2024-06-24T22:00:00.000+00:00",
      "generator" : {
        "date" : "2024-08-15T18:10:29.800+00:00",
        "engine" : {
          "name" : "BSI-WID",
          "version" : "1.3.5"
        }
      },
      "id" : "WID-SEC-W-2024-1439",
      "initial_release_date" : "2021-07-20T22:00:00.000+00:00",
      "revision_history" : [ {
        "date" : "2021-07-20T22:00:00.000+00:00",
        "number" : "1",
        "summary" : "Initiale Fassung"
      }, {
        "date" : "2021-08-05T22:00:00.000+00:00",
        "number" : "2",
        "summary" : "Neue Updates von Amazon aufgenommen"
      }, {
        "date" : "2021-09-22T22:00:00.000+00:00",
        "number" : "3",
        "summary" : "Neue Updates von Oracle Linux und ORACLE aufgenommen"
      }, {
        "date" : "2021-10-04T22:00:00.000+00:00",
        "number" : "4",
        "summary" : "Neue Updates von Amazon aufgenommen"
      }, {
        "date" : "2021-10-10T22:00:00.000+00:00",
        "number" : "5",
        "summary" : "Neue Updates von Oracle Linux aufgenommen"
      }, {
        "date" : "2021-10-11T22:00:00.000+00:00",
        "number" : "6",
        "summary" : "Neue Updates von ORACLE aufgenommen"
      }, {
        "date" : "2021-10-14T22:00:00.000+00:00",
        "number" : "7",
        "summary" : "Neue Updates von Oracle Linux aufgenommen"
      }, {
        "date" : "2021-10-17T22:00:00.000+00:00",
        "number" : "8",
        "summary" : "Neue Updates von Debian aufgenommen"
      }, {
        "date" : "2021-11-08T23:00:00.000+00:00",
        "number" : "9",
        "summary" : "Neue Updates von Ubuntu aufgenommen"
      }, {
        "date" : "2021-11-09T23:00:00.000+00:00",
        "number" : "10",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2021-11-10T23:00:00.000+00:00",
        "number" : "11",
        "summary" : "Neue Updates von Ubuntu aufgenommen"
      }, {
        "date" : "2021-11-11T23:00:00.000+00:00",
        "number" : "12",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2021-11-16T23:00:00.000+00:00",
        "number" : "13",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2021-11-17T23:00:00.000+00:00",
        "number" : "14",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2021-11-21T23:00:00.000+00:00",
        "number" : "15",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2021-11-30T23:00:00.000+00:00",
        "number" : "16",
        "summary" : "Neue Updates von Ubuntu aufgenommen"
      }, {
        "date" : "2021-12-01T23:00:00.000+00:00",
        "number" : "17",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2021-12-02T23:00:00.000+00:00",
        "number" : "18",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2021-12-06T23:00:00.000+00:00",
        "number" : "19",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2021-12-07T23:00:00.000+00:00",
        "number" : "20",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2021-12-08T23:00:00.000+00:00",
        "number" : "21",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2021-12-16T23:00:00.000+00:00",
        "number" : "22",
        "summary" : "Neue Updates von Debian aufgenommen"
      }, {
        "date" : "2022-01-30T23:00:00.000+00:00",
        "number" : "23",
        "summary" : "Neue Updates von Amazon aufgenommen"
      }, {
        "date" : "2024-06-24T22:00:00.000+00:00",
        "number" : "24",
        "summary" : "Neue Updates von Amazon aufgenommen"
      } ],
      "status" : "final",
      "version" : "24"
    }
  },
  "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 Linux Kernel",
        "product" : {
          "name" : "Open Source Linux Kernel",
          "product_id" : "6368",
          "product_identification_helper" : {
            "cpe" : "cpe:/o:linux:linux_kernel:-"
          }
        }
      } ],
      "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" : "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-2021-3655",
    "notes" : [ {
      "category" : "description",
      "text" : "Es existiert eine Schwachstelle im Linux Kernel. Grund für diese Schwachstelle ist eine unzureichende Kontrolle der Größe von SCTP-Paketen. Ein lokaler Angreifer kann diese Schwachstelle ausnutzen, um Informationen offenzulegen."
    } ],
    "product_status" : {
      "known_affected" : [ "2951", "T002207", "6368", "T000126", "398363", "T004914" ]
    },
    "release_date" : "2021-07-20T22:00:00.000+00:00",
    "title" : "CVE-2021-3655"
  } ]
}