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

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",
}


Log in or create an account to share your comment.

Security Advisory comment format.

This schema specifies the format of a comment related to a security advisory.

UUIDv4 of the comment
UUIDv4 of the Vulnerability-Lookup instance
When the comment was created originally
When the comment was last updated
Title of the comment
Description of the comment
The identifier of the vulnerability (CVE ID, GHSA-ID, PYSEC ID, etc.).



Tags
Taxonomy of the tags.




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.