{
  "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 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": "Red Hat Enterprise Linux (RHEL) ist eine popul\u00e4re Linux-Distribution.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
        "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-2026-0306 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0306.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-0306 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0306"
      },
      {
        "category": "external",
        "summary": "RedHat Security Advisory vom 2026-02-04",
        "url": "https://access.redhat.com/errata/RHSA-2026:1903"
      },
      {
        "category": "external",
        "summary": "RedHat Security Advisory vom 2026-02-04",
        "url": "https://access.redhat.com/errata/RHSA-2026:1904"
      },
      {
        "category": "external",
        "summary": "RedHat Security Advisory vom 2026-02-04",
        "url": "https://access.redhat.com/errata/RHSA-2026:1905"
      },
      {
        "category": "external",
        "summary": "RedHat Security Advisory vom 2026-02-04",
        "url": "https://access.redhat.com/errata/RHSA-2026:1906"
      },
      {
        "category": "external",
        "summary": "Rocky Linux Security Advisory RLSA-2026:1903 vom 2026-02-05",
        "url": "https://errata.build.resf.org/RLSA-2026:1903"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-1903 vom 2026-02-06",
        "url": "http://linux.oracle.com/errata/ELSA-2026-1903.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-1905 vom 2026-02-05",
        "url": "https://linux.oracle.com/errata/ELSA-2026-1905.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-1906 vom 2026-02-06",
        "url": "http://linux.oracle.com/errata/ELSA-2026-1906.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:2221 vom 2026-02-09",
        "url": "https://access.redhat.com/errata/RHSA-2026:2221"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:2300 vom 2026-02-09",
        "url": "https://access.redhat.com/errata/RHSA-2026:2300"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:2303 vom 2026-02-09",
        "url": "https://access.redhat.com/errata/RHSA-2026:2303"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:2309 vom 2026-02-09",
        "url": "https://access.redhat.com/errata/RHSA-2026:2309"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:2302 vom 2026-02-09",
        "url": "https://access.redhat.com/errata/RHSA-2026:2302"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:2299 vom 2026-02-09",
        "url": "https://access.redhat.com/errata/RHSA-2026:2299"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:2486 vom 2026-02-10",
        "url": "https://access.redhat.com/errata/RHSA-2026:2486"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:2483 vom 2026-02-10",
        "url": "https://access.redhat.com/errata/RHSA-2026:2483"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2026-DDAFE1357A vom 2026-02-10",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2026-ddafe1357a"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:2460 vom 2026-02-10",
        "url": "https://access.redhat.com/errata/RHSA-2026:2460"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:2453 vom 2026-02-10",
        "url": "https://access.redhat.com/errata/RHSA-2026:2453"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2026-0179C9B8AC vom 2026-02-10",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2026-0179c9b8ac"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:0430-1 vom 2026-02-11",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-February/024118.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:2712 vom 2026-02-16",
        "url": "https://access.redhat.com/errata/RHSA-2026:2712"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:2758 vom 2026-02-16",
        "url": "https://access.redhat.com/errata/RHSA-2026:2758"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:3354 vom 2026-02-25",
        "url": "https://access.redhat.com/errata/RHSA-2026:3354"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-3359 vom 2026-02-26",
        "url": "https://linux.oracle.com/errata/ELSA-2026-3359.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:3359 vom 2026-02-25",
        "url": "https://access.redhat.com/errata/RHSA-2026:3359"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-3354 vom 2026-02-25",
        "url": "https://linux.oracle.com/errata/ELSA-2026-3354.html"
      },
      {
        "category": "external",
        "summary": "Rocky Linux Security Advisory RLSA-2026:3354 vom 2026-02-26",
        "url": "https://errata.build.resf.org/RLSA-2026:3354"
      },
      {
        "category": "external",
        "summary": "Rocky Linux Security Advisory RLSA-2026:3359 vom 2026-02-28",
        "url": "https://errata.build.resf.org/RLSA-2026:3359"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:20482-1 vom 2026-02-27",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-February/024488.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:3959 vom 2026-03-06",
        "url": "https://access.redhat.com/errata/RHSA-2026:3959"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:3958 vom 2026-03-06",
        "url": "https://access.redhat.com/errata/RHSA-2026:3958"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:4147 vom 2026-03-10",
        "url": "https://access.redhat.com/errata/RHSA-2026:4147"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:4145 vom 2026-03-10",
        "url": "https://access.redhat.com/errata/RHSA-2026:4145"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:4148 vom 2026-03-10",
        "url": "https://access.redhat.com/errata/RHSA-2026:4148"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:4144 vom 2026-03-10",
        "url": "https://access.redhat.com/errata/RHSA-2026:4144"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:4146 vom 2026-03-10",
        "url": "https://access.redhat.com/errata/RHSA-2026:4146"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:4142 vom 2026-03-10",
        "url": "https://access.redhat.com/errata/RHSA-2026:4142"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-4146 vom 2026-03-10",
        "url": "https://linux.oracle.com/errata/ELSA-2026-4146.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:4138 vom 2026-03-10",
        "url": "https://access.redhat.com/errata/RHSA-2026:4138"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:4139 vom 2026-03-10",
        "url": "https://access.redhat.com/errata/RHSA-2026:4139"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:4140 vom 2026-03-10",
        "url": "https://access.redhat.com/errata/RHSA-2026:4140"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:4143 vom 2026-03-10",
        "url": "https://access.redhat.com/errata/RHSA-2026:4143"
      },
      {
        "category": "external",
        "summary": "Rocky Linux Security Advisory RLSA-2026:4146 vom 2026-03-11",
        "url": "https://errata.build.resf.org/RLSA-2026:4146"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:4943 vom 2026-03-18",
        "url": "https://access.redhat.com/errata/RHSA-2026:4943"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-4148 vom 2026-03-19",
        "url": "https://linux.oracle.com/errata/ELSA-2026-4148.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:5606 vom 2026-03-24",
        "url": "https://access.redhat.com/errata/RHSA-2026:5606"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-8134-1 vom 2026-03-31",
        "url": "https://ubuntu.com/security/notices/USN-8134-1"
      }
    ],
    "source_lang": "en-US",
    "title": "Red Hat Enterprise Linux (pyasn1): Schwachstelle erm\u00f6glicht Denial of Service",
    "tracking": {
      "current_release_date": "2026-03-30T22:00:00.000+00:00",
      "generator": {
        "date": "2026-03-31T08:19:15.291+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.5.0"
        }
      },
      "id": "WID-SEC-W-2026-0306",
      "initial_release_date": "2026-02-04T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-02-04T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-02-05T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2026-02-08T23:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2026-02-09T23:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2026-02-10T23:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von Red Hat und Fedora aufgenommen"
        },
        {
          "date": "2026-02-11T23:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2026-02-15T23:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2026-02-16T23:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2026-02-25T23:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von Red Hat und Oracle Linux aufgenommen"
        },
        {
          "date": "2026-02-26T23:00:00.000+00:00",
          "number": "10",
          "summary": "Neue Updates von Rocky Enterprise Software Foundation aufgenommen"
        },
        {
          "date": "2026-03-01T23:00:00.000+00:00",
          "number": "11",
          "summary": "Neue Updates von Rocky Enterprise Software Foundation und SUSE aufgenommen"
        },
        {
          "date": "2026-03-05T23:00:00.000+00:00",
          "number": "12",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2026-03-09T23:00:00.000+00:00",
          "number": "13",
          "summary": "Neue Updates von Red Hat und Oracle Linux aufgenommen"
        },
        {
          "date": "2026-03-10T23:00:00.000+00:00",
          "number": "14",
          "summary": "Neue Updates von Rocky Enterprise Software Foundation aufgenommen"
        },
        {
          "date": "2026-03-18T23:00:00.000+00:00",
          "number": "15",
          "summary": "Neue Updates von Red Hat und Oracle Linux aufgenommen"
        },
        {
          "date": "2026-03-23T23:00:00.000+00:00",
          "number": "16",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2026-03-30T22:00:00.000+00:00",
          "number": "17",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        }
      ],
      "status": "final",
      "version": "17"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Fedora Linux",
            "product": {
              "name": "Fedora Linux",
              "product_id": "74185",
              "product_identification_helper": {
                "cpe": "cpe:/o:fedoraproject:fedora:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Fedora"
      },
      {
        "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": "RESF Rocky Linux",
            "product": {
              "name": "RESF Rocky Linux",
              "product_id": "T032255",
              "product_identification_helper": {
                "cpe": "cpe:/o:resf:rocky_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "RESF"
      },
      {
        "branches": [
          {
            "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": "9",
                "product": {
                  "name": "Red Hat Enterprise Linux 9",
                  "product_id": "T050522",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:9"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "10",
                "product": {
                  "name": "Red Hat Enterprise Linux 10",
                  "product_id": "T050523",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:10"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "8",
                "product": {
                  "name": "Red Hat Enterprise Linux 8",
                  "product_id": "T050524",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:8"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "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-2026-23490",
      "product_status": {
        "known_affected": [
          "T002207",
          "67646",
          "T050524",
          "T000126",
          "T050523",
          "T050522",
          "T004914",
          "T032255",
          "74185"
        ]
      },
      "release_date": "2026-02-04T23:00:00.000+00:00",
      "title": "CVE-2026-23490"
    }
  ]
}