{
  "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 lokaler Angreifer kann eine Schwachstelle in Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen.",
      "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-2025-0672 - CSAF Version",
      "url" : "https://wid.cert-bund.de/.well-known/csaf/white/2025/wid-sec-w-2025-0672.json"
    }, {
      "category" : "self",
      "summary" : "WID-SEC-2025-0672 - Portal Version",
      "url" : "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2025-0672"
    }, {
      "category" : "external",
      "summary" : "Kernel CVE Announce Mailingliste",
      "url" : "https://lore.kernel.org/linux-cve-announce/"
    }, {
      "category" : "external",
      "summary" : "Linux Kernel CVE Announcement CVE-2025-21893",
      "url" : "https://lore.kernel.org/linux-cve-announce/2025033126-CVE-2025-21893-f2b4@gregkh/"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2025:01951-1 vom 2025-06-13",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2025-June/021509.html"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2025:9079 vom 2025-06-16",
      "url" : "https://access.redhat.com/errata/RHSA-2025:9079"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2025:01967-1 vom 2025-06-16",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2025-June/021533.html"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-7605-1 vom 2025-06-30",
      "url" : "https://ubuntu.com/security/notices/USN-7605-1"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-7606-1 vom 2025-06-30",
      "url" : "https://ubuntu.com/security/notices/USN-7606-1"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2025-9079 vom 2025-07-04",
      "url" : "https://linux.oracle.com/errata/ELSA-2025-9079.html"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-7605-2 vom 2025-07-04",
      "url" : "https://ubuntu.com/security/notices/USN-7605-2"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-7628-1 vom 2025-07-09",
      "url" : "https://ubuntu.com/security/notices/USN-7628-1"
    } ],
    "source_lang" : "en-US",
    "title" : "Linux Kernel: Schwachstelle ermöglicht Denial of Service",
    "tracking" : {
      "current_release_date" : "2025-07-08T22:00:00.000+00:00",
      "generator" : {
        "date" : "2025-07-09T06:01:31.511+00:00",
        "engine" : {
          "name" : "BSI-WID",
          "version" : "1.4.0"
        }
      },
      "id" : "WID-SEC-W-2025-0672",
      "initial_release_date" : "2025-03-31T22:00:00.000+00:00",
      "revision_history" : [ {
        "date" : "2025-03-31T22:00:00.000+00:00",
        "number" : "1",
        "summary" : "Initiale Fassung"
      }, {
        "date" : "2025-06-15T22:00:00.000+00:00",
        "number" : "2",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2025-06-16T22:00:00.000+00:00",
        "number" : "3",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2025-06-30T22:00:00.000+00:00",
        "number" : "4",
        "summary" : "Neue Updates von Ubuntu aufgenommen"
      }, {
        "date" : "2025-07-03T22:00:00.000+00:00",
        "number" : "5",
        "summary" : "Neue Updates von Oracle Linux aufgenommen"
      }, {
        "date" : "2025-07-06T22:00:00.000+00:00",
        "number" : "6",
        "summary" : "Neue Updates von Ubuntu aufgenommen"
      }, {
        "date" : "2025-07-08T22:00:00.000+00:00",
        "number" : "7",
        "summary" : "Neue Updates von Ubuntu aufgenommen"
      } ],
      "status" : "final",
      "version" : "7"
    }
  },
  "product_tree" : {
    "branches" : [ {
      "branches" : [ {
        "branches" : [ {
          "category" : "product_version_range",
          "name" : ">6.10",
          "product" : {
            "name" : "Open Source Linux Kernel >6.10",
            "product_id" : "T042261"
          }
        }, {
          "category" : "product_version",
          "name" : "6.1",
          "product" : {
            "name" : "Open Source Linux Kernel 6.10",
            "product_id" : "T042261-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:linux:linux_kernel:6.10"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "<6.12.21 6afe2ea2daec156bd94ad2c5a6f4f4c48240dcd3",
          "product" : {
            "name" : "Open Source Linux Kernel <6.12.21 6afe2ea2daec156bd94ad2c5a6f4f4c48240dcd3",
            "product_id" : "T042262"
          }
        }, {
          "category" : "product_version",
          "name" : "6.12.21 6afe2ea2daec156bd94ad2c5a6f4f4c48240dcd3",
          "product" : {
            "name" : "Open Source Linux Kernel 6.12.21 6afe2ea2daec156bd94ad2c5a6f4f4c48240dcd3",
            "product_id" : "T042262-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:linux:linux_kernel:6.12.21_6afe2ea2daec156bd94ad2c5a6f4f4c48240dcd3"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "<6.13.9 f6a3cf833188e897c97028cd7b926e3f2cb1a8c0",
          "product" : {
            "name" : "Open Source Linux Kernel <6.13.9 f6a3cf833188e897c97028cd7b926e3f2cb1a8c0",
            "product_id" : "T042263"
          }
        }, {
          "category" : "product_version",
          "name" : "6.13.9 f6a3cf833188e897c97028cd7b926e3f2cb1a8c0",
          "product" : {
            "name" : "Open Source Linux Kernel 6.13.9 f6a3cf833188e897c97028cd7b926e3f2cb1a8c0",
            "product_id" : "T042263-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:linux:linux_kernel:6.13.9_f6a3cf833188e897c97028cd7b926e3f2cb1a8c0"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "<6.14 75845c6c1a64483e9985302793dbf0dfa5f71e32",
          "product" : {
            "name" : "Open Source Linux Kernel <6.14 75845c6c1a64483e9985302793dbf0dfa5f71e32",
            "product_id" : "T042264"
          }
        }, {
          "category" : "product_version",
          "name" : "6.14 75845c6c1a64483e9985302793dbf0dfa5f71e32",
          "product" : {
            "name" : "Open Source Linux Kernel 6.14 75845c6c1a64483e9985302793dbf0dfa5f71e32",
            "product_id" : "T042264-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:linux:linux_kernel:6.14_75845c6c1a64483e9985302793dbf0dfa5f71e32"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "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-2025-21893",
    "product_status" : {
      "known_affected" : [ "T002207", "67646", "T000126", "T004914", "T042262", "T042263", "T042264" ]
    },
    "release_date" : "2025-03-31T22:00:00.000+00:00",
    "title" : "CVE-2025-21893"
  } ]
}