{"id":"CVE-2019-20477","state":"PUBLISHED","title":"PyYAML 5.1 through 5.1.2 has insufficient restrictions on the load and load_all functions because of a class deserialization issue, e.g., Popen is a class in the subprocess module.","description":"PyYAML 5.1 through 5.1.2 has insufficient restrictions on the load and load_all functions because of a class deserialization issue, e.g., Popen is a class in the subprocess module. NOTE: this issue exists because of an incomplete fix for CVE-2017-18342.","publishedAt":"2020-02-19T03:09:21.000Z","updatedAt":"2024-08-05T02:39:10.138Z","severity":null,"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://github.com/yaml/pyyaml/blob/master/CHANGES","https://www.exploit-db.com/download/47655","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/52N5XS73Z5S4ZN7I7R56ICCPCTKCUV4H/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/33VBUY73AA6CTTYL3LRWHNFDULV7PFPN/"],"weaknesses":[],"ingestedAt":"2026-10-29T19:45:50.141Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2019/20xxx/CVE-2019-20477.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2019-20477","state":"PUBLISHED","datePublished":"2020-02-19T03:09:21.000Z","dateUpdated":"2024-08-05T02:39:10.138Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2020-02-19T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"PyYAML 5.1 through 5.1.2 has insufficient restrictions on the load and load_all functions because of a class deserialization issue, e.g., Popen is a class in the subprocess module. NOTE: this issue exists because of an incomplete fix for CVE-2017-18342."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://github.com/yaml/pyyaml/blob/master/CHANGES","tags":["x_refsource_MISC"]},{"url":"https://www.exploit-db.com/download/47655","tags":["x_refsource_MISC"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/52N5XS73Z5S4ZN7I7R56ICCPCTKCUV4H/","name":"FEDORA-2020-3162499159","tags":["vendor-advisory","x_refsource_FEDORA"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/33VBUY73AA6CTTYL3LRWHNFDULV7PFPN/","name":"FEDORA-2020-e84e90dc4a","tags":["vendor-advisory","x_refsource_FEDORA"]}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"shortName":"mitre","dateUpdated":"2020-03-01T00:06:04.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2019-20477","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"PyYAML 5.1 through 5.1.2 has insufficient restrictions on the load and load_all functions because of a class deserialization issue, e.g., Popen is a class in the subprocess module. NOTE: this issue exists because of an incomplete fix for CVE-2017-18342."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"https://github.com/yaml/pyyaml/blob/master/CHANGES","refsource":"MISC","url":"https://github.com/yaml/pyyaml/blob/master/CHANGES"},{"name":"https://www.exploit-db.com/download/47655","refsource":"MISC","url":"https://www.exploit-db.com/download/47655"},{"name":"FEDORA-2020-3162499159","refsource":"FEDORA","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/52N5XS73Z5S4ZN7I7R56ICCPCTKCUV4H/"},{"name":"FEDORA-2020-e84e90dc4a","refsource":"FEDORA","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/33VBUY73AA6CTTYL3LRWHNFDULV7PFPN/"}]}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://github.com/yaml/pyyaml/blob/master/CHANGES","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://www.exploit-db.com/download/47655","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/52N5XS73Z5S4ZN7I7R56ICCPCTKCUV4H/","name":"FEDORA-2020-3162499159","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/33VBUY73AA6CTTYL3LRWHNFDULV7PFPN/","name":"FEDORA-2020-e84e90dc4a","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-05T02:39:10.138Z"}}]}}}