pysec - pysec-2018-49

pysec-2018-49

Vulnerability from pysec

Published

2018-06-27 12:29

Modified

2021-07-05 00:01

Details

In PyYAML before 5.1, the yaml.load() API could execute arbitrary code if used with untrusted data. The load() function has been deprecated in version 5.1 and the 'UnsafeLoader' has been introduced for backward compatibility with the function.

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pyyaml",
        "purl": "pkg:pypi/pyyaml"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.01",
        "3.02",
        "3.03",
        "3.04",
        "3.05",
        "3.06",
        "3.07",
        "3.08",
        "3.09",
        "3.10",
        "3.11",
        "3.12",
        "3.13",
        "3.13b1",
        "3.13rc1",
        "4.2b1",
        "4.2b2",
        "4.2b4",
        "5.1b1",
        "5.1b3",
        "5.1b5",
        "5.1b7"
      ]
    }
  ],
  "aliases": [
    "CVE-2017-18342",
    "GHSA-rprw-h62v-c2w7"
  ],
  "details": "In PyYAML before 5.1, the yaml.load() API could execute arbitrary code if used with untrusted data. The load() function has been deprecated in version 5.1 and the \u0027UnsafeLoader\u0027 has been introduced for backward compatibility with the function.",
  "id": "PYSEC-2018-49",
  "modified": "2021-07-05T00:01:25.530537Z",
  "published": "2018-06-27T12:29:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/yaml/pyyaml/pull/74"
    },
    {
      "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/M6JCFGEIEOFMWWIXGHSELMKQDD4CV2BA/"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KSQQMRUQSXBSUXLCRD3TSZYQ7SEZRKCE/"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JEX7IPV5P2QJITAMA5Z63GQCZA5I6NVZ/"
    },
    {
      "type": "WEB",
      "url": "https://github.com/yaml/pyyaml/wiki/PyYAML-yaml.load(input)-Deprecation"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/marshmallow-code/apispec/issues/278"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/yaml/pyyaml/issues/193"
    },
    {
      "type": "ADVISORY",
      "url": "https://security.gentoo.org/glsa/202003-45"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-rprw-h62v-c2w7"
    }
  ]
}

cve-2017-18342

Vulnerability from cvelistv5

Published

2018-06-27 12:00

Modified

2024-08-05 21:20

Severity ?

Summary

References

▼	URL	Tags
	https://github.com/yaml/pyyaml/pull/74	x_refsource_MISC
	https://github.com/yaml/pyyaml/blob/master/CHANGES	x_refsource_MISC
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M6JCFGEIEOFMWWIXGHSELMKQDD4CV2BA/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KSQQMRUQSXBSUXLCRD3TSZYQ7SEZRKCE/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JEX7IPV5P2QJITAMA5Z63GQCZA5I6NVZ/	vendor-advisory, x_refsource_FEDORA
	https://github.com/marshmallow-code/apispec/issues/278	x_refsource_MISC
	https://github.com/yaml/pyyaml/issues/193	x_refsource_MISC
	https://github.com/yaml/pyyaml/wiki/PyYAML-yaml.load%28input%29-Deprecation	x_refsource_MISC
	https://security.gentoo.org/glsa/202003-45	vendor-advisory, x_refsource_GENTOO

Impacted products

Vendor

Product

Version

▼

n/a

Version: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T21:20:50.850Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/yaml/pyyaml/pull/74"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/yaml/pyyaml/blob/master/CHANGES"
          },
          {
            "name": "FEDORA-2019-bed9afe622",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M6JCFGEIEOFMWWIXGHSELMKQDD4CV2BA/"
          },
          {
            "name": "FEDORA-2019-779a9db46a",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KSQQMRUQSXBSUXLCRD3TSZYQ7SEZRKCE/"
          },
          {
            "name": "FEDORA-2019-44643e8bcb",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JEX7IPV5P2QJITAMA5Z63GQCZA5I6NVZ/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/marshmallow-code/apispec/issues/278"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/yaml/pyyaml/issues/193"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/yaml/pyyaml/wiki/PyYAML-yaml.load%28input%29-Deprecation"
          },
          {
            "name": "GLSA-202003-45",
            "tags": [
              "vendor-advisory",
              "x_refsource_GENTOO",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202003-45"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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        }
      ],
      "datePublic": "2018-06-27T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "In PyYAML before 5.1, the yaml.load() API could execute arbitrary code if used with untrusted data. The load() function has been deprecated in version 5.1 and the \u0027UnsafeLoader\u0027 has been introduced for backward compatibility with the function."
        }
      ],
      "problemTypes": [
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          "descriptions": [
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              "type": "text"
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      "providerMetadata": {
        "dateUpdated": "2020-03-19T20:06:10",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
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          "tags": [
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          ],
          "url": "https://github.com/yaml/pyyaml/pull/74"
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          ],
          "url": "https://github.com/yaml/pyyaml/blob/master/CHANGES"
        },
        {
          "name": "FEDORA-2019-bed9afe622",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M6JCFGEIEOFMWWIXGHSELMKQDD4CV2BA/"
        },
        {
          "name": "FEDORA-2019-779a9db46a",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KSQQMRUQSXBSUXLCRD3TSZYQ7SEZRKCE/"
        },
        {
          "name": "FEDORA-2019-44643e8bcb",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JEX7IPV5P2QJITAMA5Z63GQCZA5I6NVZ/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/marshmallow-code/apispec/issues/278"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/yaml/pyyaml/issues/193"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/yaml/pyyaml/wiki/PyYAML-yaml.load%28input%29-Deprecation"
        },
        {
          "name": "GLSA-202003-45",
          "tags": [
            "vendor-advisory",
            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/202003-45"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2017-18342",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
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                      }
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                },
                "vendor_name": "n/a"
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        "data_version": "4.0",
        "description": {
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              "value": "In PyYAML before 5.1, the yaml.load() API could execute arbitrary code if used with untrusted data. The load() function has been deprecated in version 5.1 and the \u0027UnsafeLoader\u0027 has been introduced for backward compatibility with the function."
            }
          ]
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        "problemtype": {
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              "description": [
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                  "value": "n/a"
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        "references": {
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              "refsource": "MISC",
              "url": "https://github.com/yaml/pyyaml/pull/74"
            },
            {
              "name": "https://github.com/yaml/pyyaml/blob/master/CHANGES",
              "refsource": "MISC",
              "url": "https://github.com/yaml/pyyaml/blob/master/CHANGES"
            },
            {
              "name": "FEDORA-2019-bed9afe622",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M6JCFGEIEOFMWWIXGHSELMKQDD4CV2BA/"
            },
            {
              "name": "FEDORA-2019-779a9db46a",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KSQQMRUQSXBSUXLCRD3TSZYQ7SEZRKCE/"
            },
            {
              "name": "FEDORA-2019-44643e8bcb",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JEX7IPV5P2QJITAMA5Z63GQCZA5I6NVZ/"
            },
            {
              "name": "https://github.com/marshmallow-code/apispec/issues/278",
              "refsource": "MISC",
              "url": "https://github.com/marshmallow-code/apispec/issues/278"
            },
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              "refsource": "MISC",
              "url": "https://github.com/yaml/pyyaml/issues/193"
            },
            {
              "name": "https://github.com/yaml/pyyaml/wiki/PyYAML-yaml.load(input)-Deprecation",
              "refsource": "MISC",
              "url": "https://github.com/yaml/pyyaml/wiki/PyYAML-yaml.load(input)-Deprecation"
            },
            {
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              "refsource": "GENTOO",
              "url": "https://security.gentoo.org/glsa/202003-45"
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  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2017-18342",
    "datePublished": "2018-06-27T12:00:00",
    "dateReserved": "2018-06-27T00:00:00",
    "dateUpdated": "2024-08-05T21:20:50.850Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

ghsa-rprw-h62v-c2w7

Vulnerability from github

Published

2019-01-04 17:45

Modified

2024-10-16 20:51

Severity ?

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

PyYAML insecurely deserializes YAML strings leading to arbitrary code execution

Details

In PyYAML before 4.1, the yaml.load() API could execute arbitrary code. In other words, yaml.safe_load is not used.

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "PyYAML"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2017-18342"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-16T21:55:26Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
  },
  "details": "In PyYAML before 4.1, the `yaml.load()` API could execute arbitrary code. In other words, `yaml.safe_load` is not used.",
  "id": "GHSA-rprw-h62v-c2w7",
  "modified": "2024-10-16T20:51:25Z",
  "published": "2019-01-04T17:45:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-18342"
    },
    {
      "type": "WEB",
      "url": "https://github.com/marshmallow-code/apispec/issues/278"
    },
    {
      "type": "WEB",
      "url": "https://github.com/yaml/pyyaml/issues/193"
    },
    {
      "type": "WEB",
      "url": "https://github.com/yaml/pyyaml/pull/74"
    },
    {
      "type": "WEB",
      "url": "https://github.com/yaml/pyyaml/commit/7b68405c81db889f83c32846462b238ccae5be80"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/pyyaml/PYSEC-2018-49.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/yaml/pyyaml"
    },
    {
      "type": "WEB",
      "url": "https://github.com/yaml/pyyaml/blob/master/CHANGES"
    },
    {
      "type": "WEB",
      "url": "https://github.com/yaml/pyyaml/wiki/PyYAML-yaml.load(input)-Deprecation"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JEX7IPV5P2QJITAMA5Z63GQCZA5I6NVZ"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KSQQMRUQSXBSUXLCRD3TSZYQ7SEZRKCE"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M6JCFGEIEOFMWWIXGHSELMKQDD4CV2BA"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202003-45"
    }
  ],
  "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"
    }
  ],
  "summary": "PyYAML insecurely deserializes YAML strings leading to arbitrary code execution"
}

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-2018-49

Vulnerability from pysec

cve-2017-18342

Vulnerability from cvelistv5

ghsa-rprw-h62v-c2w7

Vulnerability from github

Tags

Sightings

Nomenclature