{
  "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 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": "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 f\u00fcr 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\u0026id=JSA11206\u0026cat=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 erm\u00f6glicht 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"
    }
  ]
}