{
  "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" : "Der Kernel stellt den Kern des Linux Betriebssystems dar.",
      "title" : "Produktbeschreibung"
    }, {
      "category" : "summary",
      "text" : "Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um nicht näher spezifizierte Angriffe durchzuführen, darunter möglicherweise Codeausführung, Denial-of-Service-Angriffe, die Umgehung von Sicherheitsmaßnahmen oder die Manipulation von Daten.",
      "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-2026-0950 - CSAF Version",
      "url" : "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0950.json"
    }, {
      "category" : "self",
      "summary" : "WID-SEC-2026-0950 - Portal Version",
      "url" : "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0950"
    }, {
      "category" : "external",
      "summary" : "Kernel CVE Announce Mailingliste",
      "url" : "https://lore.kernel.org/linux-cve-announce/"
    }, {
      "category" : "external",
      "summary" : "Linux Kernel CVE Announcement CVE-2026-23401",
      "url" : "https://lore.kernel.org/linux-cve-announce/2026040108-CVE-2026-23401-956d@gregkh/"
    }, {
      "category" : "external",
      "summary" : "Linux Kernel CVE Announcement CVE-2026-23402",
      "url" : "https://lore.kernel.org/linux-cve-announce/2026040110-CVE-2026-23402-c852@gregkh/"
    }, {
      "category" : "external",
      "summary" : "Linux Kernel CVE Announcement CVE-2026-23403",
      "url" : "https://lore.kernel.org/linux-cve-announce/2026040111-CVE-2026-23403-f22c@gregkh/"
    }, {
      "category" : "external",
      "summary" : "Linux Kernel CVE Announcement CVE-2026-23404",
      "url" : "https://lore.kernel.org/linux-cve-announce/2026040111-CVE-2026-23404-8b0b@gregkh/"
    }, {
      "category" : "external",
      "summary" : "Linux Kernel CVE Announcement CVE-2026-23405",
      "url" : "https://lore.kernel.org/linux-cve-announce/2026040111-CVE-2026-23405-0e7a@gregkh/"
    }, {
      "category" : "external",
      "summary" : "Linux Kernel CVE Announcement CVE-2026-23406",
      "url" : "https://lore.kernel.org/linux-cve-announce/2026040112-CVE-2026-23406-0cb2@gregkh/"
    }, {
      "category" : "external",
      "summary" : "Linux Kernel CVE Announcement CVE-2026-23407",
      "url" : "https://lore.kernel.org/linux-cve-announce/2026040112-CVE-2026-23407-297e@gregkh/"
    }, {
      "category" : "external",
      "summary" : "Linux Kernel CVE Announcement CVE-2026-23408",
      "url" : "https://lore.kernel.org/linux-cve-announce/2026040113-CVE-2026-23408-1932@gregkh/"
    }, {
      "category" : "external",
      "summary" : "Linux Kernel CVE Announcement CVE-2026-23409",
      "url" : "https://lore.kernel.org/linux-cve-announce/2026040113-CVE-2026-23409-ae18@gregkh/"
    }, {
      "category" : "external",
      "summary" : "Linux Kernel CVE Announcement CVE-2026-23410",
      "url" : "https://lore.kernel.org/linux-cve-announce/2026040113-CVE-2026-23410-d7d5@gregkh/"
    }, {
      "category" : "external",
      "summary" : "Linux Kernel CVE Announcement CVE-2026-23411",
      "url" : "https://lore.kernel.org/linux-cve-announce/2026040114-CVE-2026-23411-00f7@gregkh/"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2026-50170 vom 2026-04-01",
      "url" : "https://linux.oracle.com/errata/ELSA-2026-50170.html"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-8152-1 vom 2026-04-07",
      "url" : "https://ubuntu.com/security/notices/USN-8152-1"
    }, {
      "category" : "external",
      "summary" : "Microsoft Leitfaden für Sicherheitsupdates vom 2026-04-03",
      "url" : "https://msrc.microsoft.com/update-guide/"
    }, {
      "category" : "external",
      "summary" : "Microsoft Leitfaden für Sicherheitsupdates vom 2026-04-07",
      "url" : "https://msrc.microsoft.com/update-guide/"
    }, {
      "category" : "external",
      "summary" : "Microsoft Leitfaden für Sicherheitsupdates vom 2026-04-08",
      "url" : "https://msrc.microsoft.com/update-guide/"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-8165-1 vom 2026-04-10",
      "url" : "https://ubuntu.com/security/notices/USN-8165-1"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-8164-1 vom 2026-04-10",
      "url" : "https://ubuntu.com/security/notices/USN-8164-1"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-8163-1 vom 2026-04-10",
      "url" : "https://ubuntu.com/security/notices/USN-8163-1"
    } ],
    "source_lang" : "en-US",
    "title" : "Linux Kernel: Mehrere Schwachstellen",
    "tracking" : {
      "current_release_date" : "2026-04-09T22:00:00.000+00:00",
      "generator" : {
        "date" : "2026-04-10T07:04:22.177+00:00",
        "engine" : {
          "name" : "BSI-WID",
          "version" : "1.5.0"
        }
      },
      "id" : "WID-SEC-W-2026-0950",
      "initial_release_date" : "2026-03-31T22:00:00.000+00:00",
      "revision_history" : [ {
        "date" : "2026-03-31T22:00:00.000+00:00",
        "number" : "1",
        "summary" : "Initiale Fassung"
      }, {
        "date" : "2026-04-01T22:00:00.000+00:00",
        "number" : "2",
        "summary" : "Neue Updates von European Union Vulnerability Database und Oracle Linux aufgenommen"
      }, {
        "date" : "2026-04-06T22:00:00.000+00:00",
        "number" : "3",
        "summary" : "Neue Updates von Ubuntu aufgenommen"
      }, {
        "date" : "2026-04-07T22:00:00.000+00:00",
        "number" : "4",
        "summary" : "Neue Updates aufgenommen"
      }, {
        "date" : "2026-04-09T22:00:00.000+00:00",
        "number" : "5",
        "summary" : "Neue Updates von Ubuntu aufgenommen"
      } ],
      "status" : "final",
      "version" : "5"
    }
  },
  "product_tree" : {
    "branches" : [ {
      "branches" : [ {
        "branches" : [ {
          "category" : "product_version",
          "name" : "azl3",
          "product" : {
            "name" : "Microsoft Azure Linux azl3",
            "product_id" : "T049210",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:microsoft:azure_linux:azl3"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "Azure Linux"
      } ],
      "category" : "vendor",
      "name" : "Microsoft"
    }, {
      "branches" : [ {
        "category" : "product_name",
        "name" : "Open Source Linux Kernel",
        "product" : {
          "name" : "Open Source Linux Kernel",
          "product_id" : "T052352",
          "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" : "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-2026-23401",
    "product_status" : {
      "known_affected" : [ "T052352", "T000126", "T049210", "T004914" ]
    },
    "release_date" : "2026-03-31T22:00:00.000+00:00",
    "title" : "CVE-2026-23401"
  }, {
    "cve" : "CVE-2026-23402",
    "product_status" : {
      "known_affected" : [ "T052352", "T000126", "T049210", "T004914" ]
    },
    "release_date" : "2026-03-31T22:00:00.000+00:00",
    "title" : "CVE-2026-23402"
  }, {
    "cve" : "CVE-2026-23403",
    "product_status" : {
      "known_affected" : [ "T052352", "T000126", "T049210", "T004914" ]
    },
    "release_date" : "2026-03-31T22:00:00.000+00:00",
    "title" : "CVE-2026-23403"
  }, {
    "cve" : "CVE-2026-23404",
    "product_status" : {
      "known_affected" : [ "T052352", "T000126", "T049210", "T004914" ]
    },
    "release_date" : "2026-03-31T22:00:00.000+00:00",
    "title" : "CVE-2026-23404"
  }, {
    "cve" : "CVE-2026-23405",
    "product_status" : {
      "known_affected" : [ "T052352", "T000126", "T049210", "T004914" ]
    },
    "release_date" : "2026-03-31T22:00:00.000+00:00",
    "title" : "CVE-2026-23405"
  }, {
    "cve" : "CVE-2026-23406",
    "product_status" : {
      "known_affected" : [ "T052352", "T000126", "T049210", "T004914" ]
    },
    "release_date" : "2026-03-31T22:00:00.000+00:00",
    "title" : "CVE-2026-23406"
  }, {
    "cve" : "CVE-2026-23407",
    "product_status" : {
      "known_affected" : [ "T052352", "T000126", "T049210", "T004914" ]
    },
    "release_date" : "2026-03-31T22:00:00.000+00:00",
    "title" : "CVE-2026-23407"
  }, {
    "cve" : "CVE-2026-23408",
    "product_status" : {
      "known_affected" : [ "T052352", "T000126", "T049210", "T004914" ]
    },
    "release_date" : "2026-03-31T22:00:00.000+00:00",
    "title" : "CVE-2026-23408"
  }, {
    "cve" : "CVE-2026-23409",
    "product_status" : {
      "known_affected" : [ "T052352", "T000126", "T049210", "T004914" ]
    },
    "release_date" : "2026-03-31T22:00:00.000+00:00",
    "title" : "CVE-2026-23409"
  }, {
    "cve" : "CVE-2026-23410",
    "product_status" : {
      "known_affected" : [ "T052352", "T000126", "T049210", "T004914" ]
    },
    "release_date" : "2026-03-31T22:00:00.000+00:00",
    "title" : "CVE-2026-23410"
  }, {
    "cve" : "CVE-2026-23411",
    "product_status" : {
      "known_affected" : [ "T052352", "T000126", "T049210", "T004914" ]
    },
    "release_date" : "2026-03-31T22:00:00.000+00:00",
    "title" : "CVE-2026-23411"
  } ]
}