{
  "document" : {
    "aggregate_severity" : {
      "text" : "hoch"
    },
    "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 entfernter 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-2022-2090 - CSAF Version",
      "url" : "https://wid.cert-bund.de/.well-known/csaf/white/2020/wid-sec-w-2022-2090.json"
    }, {
      "category" : "self",
      "summary" : "WID-SEC-2022-2090 - Portal Version",
      "url" : "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2022-2090"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2021-9140 vom 2021-04-01",
      "url" : "http://linux.oracle.com/errata/ELSA-2021-9140.html"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2021-9141 vom 2021-04-01",
      "url" : "http://linux.oracle.com/errata/ELSA-2021-9141.html"
    }, {
      "category" : "external",
      "summary" : "AVAYA Security Advisory ASA-2021-021 vom 2021-03-31",
      "url" : "https://downloads.avaya.com/css/P8/documents/101074878"
    }, {
      "category" : "external",
      "summary" : "Meldung auf der OSS-sec Mailing Liste vom 2020-10-15",
      "url" : "http://seclists.org/oss-sec/2020/q4/63"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2020:3273-1 vom 2020-11-11",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007745.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2020:3272-1 vom 2020-11-11",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007751.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2020:3272-1 vom 2020-11-11",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007748.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2020:3273-1 vom 2020-11-11",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007747.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2020:3281-1 vom 2020-11-11",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007756.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2020:3326-1 vom 2020-11-13",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007775.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2020:3326-1 vom 2020-11-13",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007776.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2020:3491-1 vom 2020-11-23",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007842.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2020:3484-1 vom 2020-11-23",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007841.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2020:3503-1 vom 2020-11-24",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007846.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2020:3501-1 vom 2020-11-24",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007845.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2020:3522-1 vom 2020-11-25",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007856.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2020:3512-1 vom 2020-11-25",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007853.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2020:3513-1 vom 2020-11-25",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007854.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2020:3544-1 vom 2020-11-26",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007876.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2020:3532-1 vom 2020-11-26",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007874.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2020:3532-1 vom 2020-11-26",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007871.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2020:3544-1 vom 2020-11-26",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007878.html"
    }, {
      "category" : "external",
      "summary" : "Debian Security Advisory DLA-2483 vom 2020-12-10",
      "url" : "https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2020-5995 vom 2020-12-15",
      "url" : "http://linux.oracle.com/errata/ELSA-2020-5995.html"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2020-5996 vom 2020-12-15",
      "url" : "http://linux.oracle.com/errata/ELSA-2020-5996.html"
    }, {
      "category" : "external",
      "summary" : "Debian Security Advisory DLA-2494 vom 2020-12-18",
      "url" : "https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-4681-1 vom 2021-01-06",
      "url" : "https://ubuntu.com/security/notices/USN-4681-1"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-4680-1 vom 2021-01-06",
      "url" : "https://ubuntu.com/security/notices/USN-4680-1"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-4679-1 vom 2021-01-06",
      "url" : "https://ubuntu.com/security/notices/USN-4679-1"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2021-9007 vom 2021-01-13",
      "url" : "http://linux.oracle.com/errata/ELSA-2021-9007.html"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2021-9008 vom 2021-01-12",
      "url" : "https://linux.oracle.com/errata/ELSA-2021-9008.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2021:14630-1 vom 2021-02-16",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2021-February/008335.html"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2021-9052 vom 2021-02-16",
      "url" : "https://linux.oracle.com/errata/ELSA-2021-9052.html"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-4751-1 vom 2021-02-25",
      "url" : "https://ubuntu.com/security/notices/USN-4751-1"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2021:0857 vom 2021-03-16",
      "url" : "https://access.redhat.com/errata/RHSA-2021:0857"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2021:0856 vom 2021-03-16",
      "url" : "https://access.redhat.com/errata/RHSA-2021:0856"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2021-0856 vom 2021-03-18",
      "url" : "http://linux.oracle.com/errata/ELSA-2021-0856.html"
    }, {
      "category" : "external",
      "summary" : "CentOS Security Advisory CESA-2021:0856 vom 2021-03-19",
      "url" : "http://centos-announce.2309468.n4.nabble.com/CentOS-announce-CESA-2021-0856-Important-CentOS-7-kernel-Security-Update-tp4646164.html"
    }, {
      "category" : "external",
      "summary" : "Juniper Security Advisory JSA11206 vom 2021-07-14",
      "url" : "https://kb.juniper.net/InfoCenter/index?page=content&id=JSA11206&cat=SIRT_1"
    }, {
      "category" : "external",
      "summary" : "Amazon Linux Security Advisory ALASKERNEL-5.4-2022-018 vom 2022-01-31",
      "url" : "https://alas.aws.amazon.com/AL2/ALASKERNEL-5.4-2022-018.html"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2022-9999 vom 2022-11-16",
      "url" : "http://linux.oracle.com/errata/ELSA-2022-9999.html"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2024:2950 vom 2024-05-22",
      "url" : "https://access.redhat.com/errata/RHSA-2024:2950"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2024:3138 vom 2024-05-22",
      "url" : "https://access.redhat.com/errata/RHSA-2024:3138"
    }, {
      "category" : "external",
      "summary" : "IBM Security Bulletin 7156774 vom 2024-06-07",
      "url" : "https://www.ibm.com/support/pages/node/7156774"
    } ],
    "source_lang" : "en-US",
    "title" : "Linux Kernel: Schwachstelle ermöglicht Offenlegung von Informationen",
    "tracking" : {
      "current_release_date" : "2024-06-09T22:00:00.000+00:00",
      "generator" : {
        "date" : "2024-08-15T17:38:26.690+00:00",
        "engine" : {
          "name" : "BSI-WID",
          "version" : "1.3.5"
        }
      },
      "id" : "WID-SEC-W-2022-2090",
      "initial_release_date" : "2020-10-15T22:00:00.000+00:00",
      "revision_history" : [ {
        "date" : "2020-10-15T22:00:00.000+00:00",
        "number" : "1",
        "summary" : "Initiale Fassung"
      }, {
        "date" : "2020-11-10T23:00:00.000+00:00",
        "number" : "2",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2020-11-11T23:00:00.000+00:00",
        "number" : "3",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2020-11-15T23:00:00.000+00:00",
        "number" : "4",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2020-11-23T23:00:00.000+00:00",
        "number" : "5",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2020-11-24T23:00:00.000+00:00",
        "number" : "6",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2020-11-25T23:00:00.000+00:00",
        "number" : "7",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2020-11-26T23:00:00.000+00:00",
        "number" : "8",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2020-12-10T23:00:00.000+00:00",
        "number" : "9",
        "summary" : "Neue Updates von Debian aufgenommen"
      }, {
        "date" : "2020-12-14T23:00:00.000+00:00",
        "number" : "10",
        "summary" : "Neue Updates von Oracle Linux aufgenommen"
      }, {
        "date" : "2020-12-20T23:00:00.000+00:00",
        "number" : "11",
        "summary" : "Neue Updates von Debian aufgenommen"
      }, {
        "date" : "2021-01-05T23:00:00.000+00:00",
        "number" : "12",
        "summary" : "Neue Updates von Ubuntu aufgenommen"
      }, {
        "date" : "2021-01-12T23:00:00.000+00:00",
        "number" : "13",
        "summary" : "Neue Updates von Oracle Linux aufgenommen"
      }, {
        "date" : "2021-02-16T23:00:00.000+00:00",
        "number" : "14",
        "summary" : "Neue Updates von SUSE und Oracle Linux aufgenommen"
      }, {
        "date" : "2021-02-24T23:00:00.000+00:00",
        "number" : "15",
        "summary" : "Neue Updates von Ubuntu aufgenommen"
      }, {
        "date" : "2021-03-16T23:00:00.000+00:00",
        "number" : "16",
        "summary" : "Neue Updates von Red Hat aufgenommen"
      }, {
        "date" : "2021-03-17T23:00:00.000+00:00",
        "number" : "17",
        "summary" : "Neue Updates von Oracle Linux aufgenommen"
      }, {
        "date" : "2021-03-18T23:00:00.000+00:00",
        "number" : "18",
        "summary" : "Neue Updates von CentOS aufgenommen"
      }, {
        "date" : "2021-03-31T22:00:00.000+00:00",
        "number" : "19",
        "summary" : "Neue Updates von Oracle Linux aufgenommen"
      }, {
        "date" : "2021-04-05T22:00:00.000+00:00",
        "number" : "20",
        "summary" : "Neue Updates von AVAYA aufgenommen"
      }, {
        "date" : "2021-07-14T22:00:00.000+00:00",
        "number" : "21",
        "summary" : "Neue Updates von Juniper aufgenommen"
      }, {
        "date" : "2022-01-30T23:00:00.000+00:00",
        "number" : "22",
        "summary" : "Neue Updates von Amazon aufgenommen"
      }, {
        "date" : "2022-11-16T23:00:00.000+00:00",
        "number" : "23",
        "summary" : "Neue Updates von Oracle Linux aufgenommen"
      }, {
        "date" : "2024-05-21T22:00:00.000+00:00",
        "number" : "24",
        "summary" : "Neue Updates von Red Hat aufgenommen"
      }, {
        "date" : "2024-06-09T22:00:00.000+00:00",
        "number" : "25",
        "summary" : "Neue Updates von IBM aufgenommen"
      } ],
      "status" : "final",
      "version" : "25"
    }
  },
  "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" : "Avaya Aura Application Enablement Services",
        "product" : {
          "name" : "Avaya Aura Application Enablement Services",
          "product_id" : "T015516",
          "product_identification_helper" : {
            "cpe" : "cpe:/a:avaya:aura_application_enablement_services:-"
          }
        }
      }, {
        "category" : "product_name",
        "name" : "Avaya Aura Communication Manager",
        "product" : {
          "name" : "Avaya Aura Communication Manager",
          "product_id" : "T015126",
          "product_identification_helper" : {
            "cpe" : "cpe:/a:avaya:communication_manager:-"
          }
        }
      }, {
        "category" : "product_name",
        "name" : "Avaya Aura Session Manager",
        "product" : {
          "name" : "Avaya Aura Session Manager",
          "product_id" : "T015127",
          "product_identification_helper" : {
            "cpe" : "cpe:/a:avaya:session_manager:-"
          }
        }
      }, {
        "category" : "product_name",
        "name" : "Avaya Aura System Manager",
        "product" : {
          "name" : "Avaya Aura System Manager",
          "product_id" : "T015518",
          "product_identification_helper" : {
            "cpe" : "cpe:/a:avaya:aura_system_manager:-"
          }
        }
      }, {
        "category" : "product_name",
        "name" : "Avaya Web License Manager",
        "product" : {
          "name" : "Avaya Web License Manager",
          "product_id" : "T016243",
          "product_identification_helper" : {
            "cpe" : "cpe:/a:avaya:web_license_manager:-"
          }
        }
      } ],
      "category" : "vendor",
      "name" : "Avaya"
    }, {
      "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" : "IBM QRadar SIEM",
        "product" : {
          "name" : "IBM QRadar SIEM",
          "product_id" : "T021415",
          "product_identification_helper" : {
            "cpe" : "cpe:/a:ibm:qradar_siem:-"
          }
        }
      } ],
      "category" : "vendor",
      "name" : "IBM"
    }, {
      "branches" : [ {
        "category" : "product_name",
        "name" : "Juniper JUNOS",
        "product" : {
          "name" : "Juniper JUNOS",
          "product_id" : "5930",
          "product_identification_helper" : {
            "cpe" : "cpe:/o:juniper:junos:-"
          }
        }
      } ],
      "category" : "vendor",
      "name" : "Juniper"
    }, {
      "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 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" : "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-2020-25656",
    "notes" : [ {
      "category" : "description",
      "text" : "Es existiert eine Schwachstelle im Linux Kernel. Sie beruht auf einem \"use-after-free\" Lesezugriff in vt_do_kdgkb_ioctl. Ein Angreifer kann dieses nutzen und vertrauliche Daten einsehen."
    } ],
    "product_status" : {
      "known_affected" : [ "T015518", "67646", "T015516", "6368", "T015127", "T015126", "T004914", "T016243", "2951", "T002207", "T000126", "T021415", "5930", "398363", "1727" ]
    },
    "release_date" : "2020-10-15T22:00:00.000+00:00",
    "title" : "CVE-2020-25656"
  } ]
}