{
  "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" : "Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution.",
      "title" : "Produktbeschreibung"
    }, {
      "category" : "summary",
      "text" : "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux (pyasn1) ausnutzen, um einen Denial of Service Angriff durchzuführen.",
      "title" : "Angriff"
    }, {
      "category" : "general",
      "text" : "- Linux\n- UNIX",
      "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-2026-2748 - CSAF Version",
      "url" : "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2748.json"
    }, {
      "category" : "self",
      "summary" : "WID-SEC-2026-2748 - Portal Version",
      "url" : "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2748"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:53363 vom 2026-08-10",
      "url" : "https://access.redhat.com/errata/RHSA-2026:53363"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:53363 vom 2026-08-10",
      "url" : "https://access.redhat.com/errata/RHSA-2026:53364"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:53520 vom 2026-08-11",
      "url" : "https://access.redhat.com/errata/RHSA-2026:53520"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:53365 vom 2026-08-11",
      "url" : "https://access.redhat.com/errata/RHSA-2026:53365"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2026-53364 vom 2026-08-12",
      "url" : "https://linux.oracle.com/errata/ELSA-2026-53364.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2026:23006-1 vom 2026-08-12",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2026-August/028247.html"
    }, {
      "category" : "external",
      "summary" : "Rocky Linux Security Advisory RLSA-2026:53363 vom 2026-08-12",
      "url" : "https://errata.build.resf.org/RLSA-2026:53363"
    }, {
      "category" : "external",
      "summary" : "Rocky Linux Security Advisory RLSA-2026:53364 vom 2026-08-12",
      "url" : "https://errata.build.resf.org/RLSA-2026:53364"
    }, {
      "category" : "external",
      "summary" : "Rocky Linux Security Advisory RLSA-2026:53365 vom 2026-08-12",
      "url" : "https://errata.build.resf.org/RLSA-2026:53365"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2026-53365 vom 2026-08-12",
      "url" : "https://linux.oracle.com/errata/ELSA-2026-53365.html"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2026-53363 vom 2026-08-12",
      "url" : "http://linux.oracle.com/errata/ELSA-2026-53363.html"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:56347 vom 2026-08-19",
      "url" : "https://access.redhat.com/errata/RHSA-2026:56347"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2026:23167-1 vom 2026-08-21",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2026-August/028420.html"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:58547 vom 2026-08-24",
      "url" : "https://access.redhat.com/errata/RHSA-2026:58547"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:58834 vom 2026-08-24",
      "url" : "https://access.redhat.com/errata/RHSA-2026:58834"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:58811 vom 2026-08-24",
      "url" : "https://access.redhat.com/errata/RHSA-2026:58811"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:58820 vom 2026-08-24",
      "url" : "https://access.redhat.com/errata/RHSA-2026:58820"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:58822 vom 2026-08-24",
      "url" : "https://access.redhat.com/errata/RHSA-2026:58822"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:58546 vom 2026-08-24",
      "url" : "https://access.redhat.com/errata/RHSA-2026:58546"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:58548 vom 2026-08-24",
      "url" : "https://access.redhat.com/errata/RHSA-2026:58548"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:58821 vom 2026-08-24",
      "url" : "https://access.redhat.com/errata/RHSA-2026:58821"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:59246 vom 2026-08-25",
      "url" : "https://access.redhat.com/errata/RHSA-2026:59246"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:59247 vom 2026-08-25",
      "url" : "https://access.redhat.com/errata/RHSA-2026:59247"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:59136 vom 2026-08-24",
      "url" : "https://access.redhat.com/errata/RHSA-2026:59136"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:59244 vom 2026-08-25",
      "url" : "https://access.redhat.com/errata/RHSA-2026:59244"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:59242 vom 2026-08-25",
      "url" : "https://access.redhat.com/errata/RHSA-2026:59242"
    }, {
      "category" : "external",
      "summary" : "Rocky Linux Security Advisory RLSA-2026:59241 vom 2026-08-25",
      "url" : "https://errata.build.resf.org/RLSA-2026:59241"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:59238 vom 2026-08-25",
      "url" : "https://access.redhat.com/errata/RHSA-2026:59238"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:59240 vom 2026-08-25",
      "url" : "https://access.redhat.com/errata/RHSA-2026:59240"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:59239 vom 2026-08-25",
      "url" : "https://access.redhat.com/errata/RHSA-2026:59239"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:59241 vom 2026-08-25",
      "url" : "https://access.redhat.com/errata/RHSA-2026:59241"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:59245 vom 2026-08-25",
      "url" : "https://access.redhat.com/errata/RHSA-2026:59245"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:59243 vom 2026-08-25",
      "url" : "https://access.redhat.com/errata/RHSA-2026:59243"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:59329 vom 2026-08-25",
      "url" : "https://access.redhat.com/errata/RHSA-2026:59329"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:59135 vom 2026-08-24",
      "url" : "https://access.redhat.com/errata/RHSA-2026:59135"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:59248 vom 2026-08-25",
      "url" : "https://access.redhat.com/errata/RHSA-2026:59248"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2026-59243 vom 2026-08-25",
      "url" : "https://linux.oracle.com/errata/ELSA-2026-59243.html"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2026-59241 vom 2026-08-25",
      "url" : "https://linux.oracle.com/errata/ELSA-2026-59241.html"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2026-59242 vom 2026-08-25",
      "url" : "https://linux.oracle.com/errata/ELSA-2026-59242.html"
    }, {
      "category" : "external",
      "summary" : "Rocky Linux Security Advisory RLSA-2026:59242 vom 2026-08-25",
      "url" : "https://errata.build.resf.org/RLSA-2026:59242"
    }, {
      "category" : "external",
      "summary" : "Rocky Linux Security Advisory RLSA-2026:59243 vom 2026-08-25",
      "url" : "https://errata.build.resf.org/RLSA-2026:59243"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-8712-1 vom 2026-09-01",
      "url" : "https://ubuntu.com/security/notices/USN-8712-1"
    }, {
      "category" : "external",
      "summary" : "Debian Security Advisory DLA-4778 vom 2026-09-09",
      "url" : "https://lists.debian.org/debian-lts-announce/2026/09/msg00013.html"
    } ],
    "source_lang" : "en-US",
    "title" : "Red Hat Enterprise Linux (pyasn1): Schwachstelle ermöglicht Denial of Service",
    "tracking" : {
      "current_release_date" : "2026-09-09T22:00:00.000+00:00",
      "generator" : {
        "date" : "2026-09-10T11:37:09.064+00:00",
        "engine" : {
          "name" : "BSI-WID",
          "version" : "1.6.0"
        }
      },
      "id" : "WID-SEC-W-2026-2748",
      "initial_release_date" : "2026-08-10T22:00:00.000+00:00",
      "revision_history" : [ {
        "date" : "2026-08-10T22:00:00.000+00:00",
        "number" : "1",
        "summary" : "Initiale Fassung"
      }, {
        "date" : "2026-08-11T22:00:00.000+00:00",
        "number" : "2",
        "summary" : "Neue Updates von Red Hat aufgenommen"
      }, {
        "date" : "2026-08-12T22:00:00.000+00:00",
        "number" : "3",
        "summary" : "Neue Updates von Oracle Linux aufgenommen"
      }, {
        "date" : "2026-08-18T22:00:00.000+00:00",
        "number" : "4",
        "summary" : "Neue Updates von Red Hat aufgenommen"
      }, {
        "date" : "2026-08-23T22:00:00.000+00:00",
        "number" : "5",
        "summary" : "Neue Updates von SUSE und Red Hat aufgenommen"
      }, {
        "date" : "2026-08-24T22:00:00.000+00:00",
        "number" : "6",
        "summary" : "Neue Updates von Red Hat und Rocky Enterprise Software Foundation aufgenommen"
      }, {
        "date" : "2026-08-25T22:00:00.000+00:00",
        "number" : "7",
        "summary" : "Neue Updates von Oracle Linux und Rocky Enterprise Software Foundation aufgenommen"
      }, {
        "date" : "2026-09-01T22:00:00.000+00:00",
        "number" : "8",
        "summary" : "Neue Updates von Ubuntu aufgenommen"
      }, {
        "date" : "2026-09-09T22:00:00.000+00:00",
        "number" : "9",
        "summary" : "Neue Updates von Debian aufgenommen"
      } ],
      "status" : "final",
      "version" : "9"
    }
  },
  "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" : [ {
        "category" : "product_name",
        "name" : "Oracle Linux",
        "product" : {
          "name" : "Oracle Linux",
          "product_id" : "T056236",
          "product_identification_helper" : {
            "cpe" : "cpe:/o:oracle:linux:-"
          }
        }
      } ],
      "category" : "vendor",
      "name" : "Oracle"
    }, {
      "branches" : [ {
        "category" : "product_name",
        "name" : "RESF Rocky Linux",
        "product" : {
          "name" : "RESF Rocky Linux",
          "product_id" : "T054581",
          "product_identification_helper" : {
            "cpe" : "cpe:/o:resf:rocky_linux:-"
          }
        }
      } ],
      "category" : "vendor",
      "name" : "RESF"
    }, {
      "branches" : [ {
        "branches" : [ {
          "category" : "product_version",
          "name" : "2.5",
          "product" : {
            "name" : "Red Hat Ansible Automation Platform 2.5",
            "product_id" : "10155A9C-C5B0-4BB2-ABA3-E04187E2E74F",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:redhat:ansible_automation_platform:2.5"
            }
          }
        }, {
          "category" : "product_version",
          "name" : "2.6",
          "product" : {
            "name" : "Red Hat Ansible Automation Platform 2.6",
            "product_id" : "849D5C3D-731E-4D19-801F-338FD159A1BB",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:redhat:ansible_automation_platform:2.6"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "Ansible Automation Platform"
      }, {
        "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" : "product_version",
          "name" : "8",
          "product" : {
            "name" : "Red Hat Enterprise Linux 8",
            "product_id" : "T057832",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:redhat:enterprise_linux:8"
            }
          }
        }, {
          "category" : "product_version",
          "name" : "9.6 Extended Update Support",
          "product" : {
            "name" : "Red Hat Enterprise Linux 9.6 Extended Update Support",
            "product_id" : "T058508",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:redhat:enterprise_linux:9.6_extended_update_support"
            }
          }
        }, {
          "category" : "product_version",
          "name" : "8.4 Advanced Mission Critical Update Support",
          "product" : {
            "name" : "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
            "product_id" : "T058512",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:redhat:enterprise_linux:8.4_advanced_mission_critical_update_support"
            }
          }
        }, {
          "category" : "product_version",
          "name" : "8.4 Extended Update Support Long-Life Add-On",
          "product" : {
            "name" : "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
            "product_id" : "T058513",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:redhat:enterprise_linux:8.4_extended_update_support_long-life_add-on"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "Enterprise Linux"
      }, {
        "branches" : [ {
          "category" : "product_version",
          "name" : "Migration Toolkit for Applications",
          "product" : {
            "name" : "Red Hat OpenShift Migration Toolkit for Applications",
            "product_id" : "T058295",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:redhat:openshift:migration_toolkit_for_applications"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "OpenShift"
      } ],
      "category" : "vendor",
      "name" : "Red Hat"
    }, {
      "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-2026-59886",
    "product_status" : {
      "known_affected" : [ "T056236", "849D5C3D-731E-4D19-801F-338FD159A1BB", "T057832", "T058513", "T054581", "67646", "T058508", "T054646", "T058512", "2951", "T058295", "T055947", "10155A9C-C5B0-4BB2-ABA3-E04187E2E74F" ]
    },
    "release_date" : "2026-08-10T22:00:00.000+00:00",
    "title" : "CVE-2026-59886"
  } ]
}