{
  "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 mehrere Schwachstellen im 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-2026-2190 - CSAF Version",
      "url" : "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2190.json"
    }, {
      "category" : "self",
      "summary" : "WID-SEC-2026-2190 - Portal Version",
      "url" : "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2190"
    }, {
      "category" : "external",
      "summary" : "Kernel CVE Announce Mailingliste",
      "url" : "https://lore.kernel.org/linux-cve-announce/"
    }, {
      "category" : "external",
      "summary" : "Linux Kernel CVE Announcement CVE-2026-53357",
      "url" : "https://lore.kernel.org/linux-cve-announce/2026070234-CVE-2026-53357-18f1@gregkh/"
    }, {
      "category" : "external",
      "summary" : "Linux Kernel CVE Announcement CVE-2026-53358",
      "url" : "https://lore.kernel.org/linux-cve-announce/2026070236-CVE-2026-53358-6f81@gregkh/"
    }, {
      "category" : "external",
      "summary" : "Debian Security Advisory DLA-4671 vom 2026-07-05",
      "url" : "https://lists.debian.org/debian-lts-announce/2026/07/msg00012.html"
    }, {
      "category" : "external",
      "summary" : "Debian Security Advisory DLA-4665 vom 2026-07-03",
      "url" : "https://lists.debian.org/debian-lts-announce/2026/07/msg00006.html"
    }, {
      "category" : "external",
      "summary" : "Debian Security Advisory DLA-4664 vom 2026-07-03",
      "url" : "https://lists.debian.org/debian-lts-announce/2026/07/msg00005.html"
    }, {
      "category" : "external",
      "summary" : "Microsoft Leitfaden für Sicherheitsupdates vom 2026-07-14",
      "url" : "https://msrc.microsoft.com/update-guide/"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2026:3130-1 vom 2026-07-20",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2026-July/027664.html"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-8569-1 vom 2026-07-20",
      "url" : "https://ubuntu.com/security/notices/USN-8569-1"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-8568-1 vom 2026-07-20",
      "url" : "https://ubuntu.com/security/notices/USN-8568-1"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-8566-1 vom 2026-07-20",
      "url" : "https://ubuntu.com/security/notices/USN-8566-1"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2026:3156-1 vom 2026-07-21",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2026-July/027682.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2026:3166-1 vom 2026-07-22",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2026-July/027691.html"
    } ],
    "source_lang" : "en-US",
    "title" : "Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service",
    "tracking" : {
      "current_release_date" : "2026-07-21T22:00:00.000+00:00",
      "generator" : {
        "date" : "2026-07-22T10:23:03.742+00:00",
        "engine" : {
          "name" : "BSI-WID",
          "version" : "1.6.0"
        }
      },
      "id" : "WID-SEC-W-2026-2190",
      "initial_release_date" : "2026-07-02T22:00:00.000+00:00",
      "revision_history" : [ {
        "date" : "2026-07-02T22:00:00.000+00:00",
        "number" : "1",
        "summary" : "Initiale Fassung"
      }, {
        "date" : "2026-07-05T22:00:00.000+00:00",
        "number" : "2",
        "summary" : "Neue Updates von Debian aufgenommen"
      }, {
        "date" : "2026-07-14T22:00:00.000+00:00",
        "number" : "3",
        "summary" : "Neue Updates aufgenommen"
      }, {
        "date" : "2026-07-20T22:00:00.000+00:00",
        "number" : "4",
        "summary" : "Neue Updates von SUSE und Ubuntu aufgenommen"
      }, {
        "date" : "2026-07-21T22:00:00.000+00:00",
        "number" : "5",
        "summary" : "Neue Updates von SUSE aufgenommen"
      } ],
      "status" : "final",
      "version" : "5"
    }
  },
  "product_tree" : {
    "branches" : [ {
      "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" : [ {
        "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" : [ {
        "branches" : [ {
          "category" : "product_version_range",
          "name" : "<5.10.259",
          "product" : {
            "name" : "Open Source Linux Kernel <5.10.259",
            "product_id" : "T056014"
          }
        }, {
          "category" : "product_version",
          "name" : "5.10.259",
          "product" : {
            "name" : "Open Source Linux Kernel 5.10.259",
            "product_id" : "T056014-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:linux:linux_kernel:5.10.259"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "<5.15.210",
          "product" : {
            "name" : "Open Source Linux Kernel <5.15.210",
            "product_id" : "T056015"
          }
        }, {
          "category" : "product_version",
          "name" : "5.15.210",
          "product" : {
            "name" : "Open Source Linux Kernel 5.15.210",
            "product_id" : "T056015-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:linux:linux_kernel:5.15.210"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "<6.1.176",
          "product" : {
            "name" : "Open Source Linux Kernel <6.1.176",
            "product_id" : "T056016"
          }
        }, {
          "category" : "product_version",
          "name" : "6.1.176",
          "product" : {
            "name" : "Open Source Linux Kernel 6.1.176",
            "product_id" : "T056016-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:linux:linux_kernel:6.1.176"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "<6.6.143",
          "product" : {
            "name" : "Open Source Linux Kernel <6.6.143",
            "product_id" : "T056018"
          }
        }, {
          "category" : "product_version",
          "name" : "6.6.143",
          "product" : {
            "name" : "Open Source Linux Kernel 6.6.143",
            "product_id" : "T056018-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:linux:linux_kernel:6.6.143"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "<6.12.93",
          "product" : {
            "name" : "Open Source Linux Kernel <6.12.93",
            "product_id" : "T056019"
          }
        }, {
          "category" : "product_version",
          "name" : "6.12.93",
          "product" : {
            "name" : "Open Source Linux Kernel 6.12.93",
            "product_id" : "T056019-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:linux:linux_kernel:6.12.93"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "<6.18.35",
          "product" : {
            "name" : "Open Source Linux Kernel <6.18.35",
            "product_id" : "T056021"
          }
        }, {
          "category" : "product_version",
          "name" : "6.18.35",
          "product" : {
            "name" : "Open Source Linux Kernel 6.18.35",
            "product_id" : "T056021-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:linux:linux_kernel:6.18.35"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "<7.0.12",
          "product" : {
            "name" : "Open Source Linux Kernel <7.0.12",
            "product_id" : "T056022"
          }
        }, {
          "category" : "product_version",
          "name" : "7.0.12",
          "product" : {
            "name" : "Open Source Linux Kernel 7.0.12",
            "product_id" : "T056022-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:linux:linux_kernel:7.0.12"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "<7.1",
          "product" : {
            "name" : "Open Source Linux Kernel <7.1",
            "product_id" : "T056024"
          }
        }, {
          "category" : "product_version",
          "name" : "7.1",
          "product" : {
            "name" : "Open Source Linux Kernel 7.1",
            "product_id" : "T056024-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:linux:linux_kernel:7.1"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "Linux Kernel"
      } ],
      "category" : "vendor",
      "name" : "Open Source"
    }, {
      "branches" : [ {
        "category" : "product_name",
        "name" : "SUSE Linux",
        "product" : {
          "name" : "SUSE Linux",
          "product_id" : "T054646",
          "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" : "T055947",
          "product_identification_helper" : {
            "cpe" : "cpe:/o:canonical:ubuntu_linux:-"
          }
        }
      } ],
      "category" : "vendor",
      "name" : "Ubuntu"
    } ]
  },
  "vulnerabilities" : [ {
    "cve" : "CVE-2026-53357",
    "product_status" : {
      "known_affected" : [ "T056016", "T056018", "T056019", "2951", "T055947", "T054646", "T056021", "T049210", "T056022", "T056024", "T056014", "T056015" ]
    },
    "release_date" : "2026-07-02T22:00:00.000+00:00",
    "title" : "CVE-2026-53357"
  }, {
    "cve" : "CVE-2026-53358",
    "product_status" : {
      "known_affected" : [ "T056016", "T056018", "T056019", "2951", "T055947", "T054646", "T056021", "T049210", "T056022", "T056024", "T056014", "T056015" ]
    },
    "release_date" : "2026-07-02T22:00:00.000+00:00",
    "title" : "CVE-2026-53358"
  } ]
}