pysec - pysec-2020-176

pysec-2020-176

Vulnerability from pysec

Published

2020-02-19 04:15

Modified

2020-03-01 00:15

Details

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.

Aliases

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pyyaml",
        "purl": "pkg:pypi/pyyaml"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.1"
            },
            {
              "fixed": "5.2b1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.1",
        "5.1.1",
        "5.1.2"
      ]
    }
  ],
  "aliases": [
    "CVE-2019-20477",
    "GHSA-3pqx-4fqf-j49f"
  ],
  "details": "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.",
  "id": "PYSEC-2020-176",
  "modified": "2020-03-01T00:15:00Z",
  "published": "2020-02-19T04:15:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/download/47655"
    },
    {
      "type": "WEB",
      "url": "https://github.com/yaml/pyyaml/blob/master/CHANGES"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/52N5XS73Z5S4ZN7I7R56ICCPCTKCUV4H/"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/33VBUY73AA6CTTYL3LRWHNFDULV7PFPN/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-3pqx-4fqf-j49f"
    }
  ]
}

ghsa-3pqx-4fqf-j49f

Vulnerability from github

Published

2021-04-20 16:40

Modified

2024-10-25 21:15

Severity ?

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Summary

Deserialization of Untrusted Data in PyYAML

Details

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pyyaml"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.1"
            },
            {
              "fixed": "5.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2019-20477"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-04-08T19:24:04Z",
    "nvd_published_at": "2020-02-19T04:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "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.",
  "id": "GHSA-3pqx-4fqf-j49f",
  "modified": "2024-10-25T21:15:15Z",
  "published": "2021-04-20T16:40:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-20477"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-3pqx-4fqf-j49f"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/pyyaml/PYSEC-2020-176.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/yaml/pyyaml"
    },
    {
      "type": "WEB",
      "url": "https://github.com/yaml/pyyaml/blob/master/CHANGES"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/33VBUY73AA6CTTYL3LRWHNFDULV7PFPN"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/52N5XS73Z5S4ZN7I7R56ICCPCTKCUV4H"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/download/47655"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Deserialization of Untrusted Data in PyYAML"
}

cve-2019-20477

Vulnerability from cvelistv5

Published

2020-02-19 03:09

Modified

2024-08-05 02:39

Severity ?

Summary

References

▼	URL	Tags
	https://github.com/yaml/pyyaml/blob/master/CHANGES	x_refsource_MISC
	https://www.exploit-db.com/download/47655	x_refsource_MISC
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/52N5XS73Z5S4ZN7I7R56ICCPCTKCUV4H/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/33VBUY73AA6CTTYL3LRWHNFDULV7PFPN/	vendor-advisory, x_refsource_FEDORA

Impacted products

Vendor

Product

Version

▼

n/a

Version: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T02:39:10.138Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/yaml/pyyaml/blob/master/CHANGES"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.exploit-db.com/download/47655"
          },
          {
            "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/52N5XS73Z5S4ZN7I7R56ICCPCTKCUV4H/"
          },
          {
            "name": "FEDORA-2020-e84e90dc4a",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/33VBUY73AA6CTTYL3LRWHNFDULV7PFPN/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-03-01T00:06:04",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/yaml/pyyaml/blob/master/CHANGES"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.exploit-db.com/download/47655"
        },
        {
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          "tags": [
            "vendor-advisory",
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          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/52N5XS73Z5S4ZN7I7R56ICCPCTKCUV4H/"
        },
        {
          "name": "FEDORA-2020-e84e90dc4a",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/33VBUY73AA6CTTYL3LRWHNFDULV7PFPN/"
        }
      ],
      "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": {
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                            "version_value": "n/a"
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        },
        "problemtype": {
          "problemtype_data": [
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              "description": [
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                  "lang": "eng",
                  "value": "n/a"
                }
              ]
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        },
        "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"
            },
            {
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              "refsource": "FEDORA",
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            },
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  "cveMetadata": {
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    "assignerShortName": "mitre",
    "cveId": "CVE-2019-20477",
    "datePublished": "2020-02-19T03:09:21",
    "dateReserved": "2020-02-19T00:00:00",
    "dateUpdated": "2024-08-05T02:39:10.138Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

pysec-2020-176

Vulnerability from pysec

ghsa-3pqx-4fqf-j49f

Vulnerability from github

cve-2019-20477

Vulnerability from cvelistv5

Tags

Sightings

Nomenclature