{
  "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" : "Libtasn1 ist die ASN.1 Bibliothek, welche z. B. von  GnuTLS, GNU Shishi einigen anderen Paketen verwendet wird.",
      "title" : "Produktbeschreibung"
    }, {
      "category" : "summary",
      "text" : "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in libtasn1 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-2026-0044 - CSAF Version",
      "url" : "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0044.json"
    }, {
      "category" : "self",
      "summary" : "WID-SEC-2026-0044 - Portal Version",
      "url" : "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0044"
    }, {
      "category" : "external",
      "summary" : "GitHub Advisory Database vom 2026-01-08",
      "url" : "https://github.com/advisories/GHSA-f433-vfwr-65r3"
    }, {
      "category" : "external",
      "summary" : "Mailing Liste OSS-Security vom 2026-01-08",
      "url" : "https://seclists.org/oss-sec/2026/q1/43"
    }, {
      "category" : "external",
      "summary" : "Fedora Security Advisory FEDORA-2026-0DFBD2A5E2 vom 2026-01-13",
      "url" : "https://bodhi.fedoraproject.org/updates/FEDORA-2026-0dfbd2a5e2"
    }, {
      "category" : "external",
      "summary" : "Fedora Security Advisory FEDORA-2026-4ED69F3065 vom 2026-01-13",
      "url" : "https://bodhi.fedoraproject.org/updates/FEDORA-2026-4ed69f3065"
    }, {
      "category" : "external",
      "summary" : "openSUSE Security Update OPENSUSE-SU-2026:10033-1 vom 2026-01-13",
      "url" : "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/3DDSWB4DIQK5F4OOK5WTXGIJFEZKZPWK/"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2026:0118-1 vom 2026-01-13",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2026-January/023735.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2026:20051-1 vom 2026-01-15",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2026-January/023757.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2026:0224-1 vom 2026-01-22",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2026-January/023861.html"
    }, {
      "category" : "external",
      "summary" : "Amazon Linux Security Advisory ALAS2-2026-3143 vom 2026-02-06",
      "url" : "https://alas.aws.amazon.com/AL2/ALAS2-2026-3143.html"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-7954-2 vom 2026-02-11",
      "url" : "https://ubuntu.com/security/notices/USN-7954-2"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-7954-1 vom 2026-02-11",
      "url" : "https://ubuntu.com/security/notices/USN-7954-1"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2026:20355-1 vom 2026-02-17",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2026-February/024328.html"
    }, {
      "category" : "external",
      "summary" : "Fedora Security Advisory FEDORA-2026-48A302496D vom 2026-03-14",
      "url" : "https://bodhi.fedoraproject.org/updates/FEDORA-2026-48a302496d"
    }, {
      "category" : "external",
      "summary" : "Fedora Security Advisory FEDORA-2026-4450956BE5 vom 2026-03-16",
      "url" : "https://bodhi.fedoraproject.org/updates/FEDORA-2026-4450956be5"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2026:21001-1 vom 2026-04-13",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025223.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2026:21142-1 vom 2026-04-21",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025501.html"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:28253 vom 2026-06-24",
      "url" : "https://access.redhat.com/errata/RHSA-2026:28253"
    }, {
      "category" : "external",
      "summary" : "Rocky Linux Security Advisory RLSA-2026:28253 vom 2026-06-24",
      "url" : "https://errata.build.resf.org/RLSA-2026:28253"
    }, {
      "category" : "external",
      "summary" : "Rocky Linux Security Advisory RLSA-2026:28235 vom 2026-06-24",
      "url" : "https://errata.build.resf.org/RLSA-2026:28235"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2026-28253 vom 2026-06-26",
      "url" : "https://linux.oracle.com/errata/ELSA-2026-28253.html"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:33313 vom 2026-06-30",
      "url" : "https://access.redhat.com/errata/RHSA-2026:33313"
    } ],
    "source_lang" : "en-US",
    "title" : "libtasn1: Schwachstelle ermöglicht Denial of Service",
    "tracking" : {
      "current_release_date" : "2026-06-29T22:00:00.000+00:00",
      "generator" : {
        "date" : "2026-06-30T09:06:58.336+00:00",
        "engine" : {
          "name" : "BSI-WID",
          "version" : "1.6.0"
        }
      },
      "id" : "WID-SEC-W-2026-0044",
      "initial_release_date" : "2026-01-07T23:00:00.000+00:00",
      "revision_history" : [ {
        "date" : "2026-01-07T23:00:00.000+00:00",
        "number" : "1",
        "summary" : "Initiale Fassung"
      }, {
        "date" : "2026-01-08T23:00:00.000+00:00",
        "number" : "2",
        "summary" : "Neue Updates aufgenommen"
      }, {
        "date" : "2026-01-13T23:00:00.000+00:00",
        "number" : "3",
        "summary" : "Neue Updates von Fedora, openSUSE und SUSE aufgenommen"
      }, {
        "date" : "2026-01-14T23:00:00.000+00:00",
        "number" : "4",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2026-01-20T23:00:00.000+00:00",
        "number" : "5",
        "summary" : "Referenz(en) aufgenommen: VU#271649, VU#271649"
      }, {
        "date" : "2026-01-22T23:00:00.000+00:00",
        "number" : "6",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2026-02-05T23:00:00.000+00:00",
        "number" : "7",
        "summary" : "Neue Updates von Amazon aufgenommen"
      }, {
        "date" : "2026-02-11T23:00:00.000+00:00",
        "number" : "8",
        "summary" : "Neue Updates von Ubuntu aufgenommen"
      }, {
        "date" : "2026-02-17T23:00:00.000+00:00",
        "number" : "9",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2026-03-15T23:00:00.000+00:00",
        "number" : "10",
        "summary" : "Neue Updates von Fedora aufgenommen"
      }, {
        "date" : "2026-04-12T22:00:00.000+00:00",
        "number" : "11",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2026-04-21T22:00:00.000+00:00",
        "number" : "12",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2026-06-23T22:00:00.000+00:00",
        "number" : "13",
        "summary" : "Neue Updates von Red Hat aufgenommen"
      }, {
        "date" : "2026-06-24T22:00:00.000+00:00",
        "number" : "14",
        "summary" : "Neue Updates von Rocky Enterprise Software Foundation aufgenommen"
      }, {
        "date" : "2026-06-25T22:00:00.000+00:00",
        "number" : "15",
        "summary" : "Neue Updates von Oracle Linux aufgenommen"
      }, {
        "date" : "2026-06-29T22:00:00.000+00:00",
        "number" : "16",
        "summary" : "Neue Updates von Red Hat aufgenommen"
      } ],
      "status" : "final",
      "version" : "16"
    }
  },
  "product_tree" : {
    "branches" : [ {
      "branches" : [ {
        "category" : "product_name",
        "name" : "Amazon Linux 2",
        "product" : {
          "name" : "Amazon Linux 2",
          "product_id" : "398363",
          "product_identification_helper" : {
            "cpe" : "cpe:/o:amazon:linux_2:-"
          }
        }
      } ],
      "category" : "vendor",
      "name" : "Amazon"
    }, {
      "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" : [ {
        "branches" : [ {
          "category" : "product_version",
          "name" : "4.20.0",
          "product" : {
            "name" : "Open Source libtasn1 4.20.0",
            "product_id" : "T049785",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:gnu:libtasn1:4.20.0"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "<4.21.0",
          "product" : {
            "name" : "Open Source libtasn1 <4.21.0",
            "product_id" : "T049791"
          }
        }, {
          "category" : "product_version",
          "name" : "4.21.0",
          "product" : {
            "name" : "Open Source libtasn1 4.21.0",
            "product_id" : "T049791-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:gnu:libtasn1:4.21.0"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "libtasn1"
      } ],
      "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" : "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" : [ {
        "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" : "product_name",
        "name" : "SUSE openSUSE",
        "product" : {
          "name" : "SUSE openSUSE",
          "product_id" : "T027843",
          "product_identification_helper" : {
            "cpe" : "cpe:/o:suse:opensuse:-"
          }
        }
      } ],
      "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-2025-13151",
    "product_status" : {
      "known_affected" : [ "T002207", "67646", "T049791", "T000126", "T027843", "T049785", "398363", "T004914", "T032255", "74185" ]
    },
    "release_date" : "2026-01-07T23:00:00.000+00:00",
    "title" : "CVE-2025-13151"
  } ]
}