pysec-2019-131
Vulnerability from pysec
Published
2019-11-26 15:15
Modified
2020-03-14 02:15
Details

typed_ast 1.3.0 and 1.3.1 has an ast_for_arguments out-of-bounds read. An attacker with the ability to cause a Python interpreter to parse Python source (but not necessarily execute it) may be able to crash the interpreter process. This could be a concern, for example, in a web-based service that parses (but does not execute) Python code. (This issue also affected certain Python 3.8.0-alpha prereleases.)

Impacted products
Name purl
typed-ast pkg:pypi/typed-ast
Aliases


To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "typed-ast",
        "purl": "pkg:pypi/typed-ast"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "156afcb26c198e162504a57caddfe0acd9ed7dce"
            },
            {
              "fixed": "dc317ac9cff859aa84eeabe03fb5004982545b3b"
            }
          ],
          "repo": "https://github.com/python/typed_ast",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "dcfcd146f8e6fc5c2fc16a4c192a0c5f5ca8c53c"
            },
            {
              "fixed": "a4d78362397fc3bced6ea80fbc7b5f4827aec55e"
            }
          ],
          "repo": "https://github.com/python/cpython",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.3.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.5",
        "0.5.1",
        "0.5.2",
        "0.5.3",
        "0.5.4",
        "0.5.5",
        "0.5.6",
        "0.6.0",
        "0.6.1",
        "0.6.2",
        "0.6.3",
        "1.0.0",
        "1.0.1",
        "1.0.2",
        "1.0.3",
        "1.0.4",
        "1.1.0",
        "1.1.1",
        "1.1.2",
        "1.2.0",
        "1.3.0",
        "1.3.1"
      ]
    }
  ],
  "aliases": [
    "CVE-2019-19275",
    "GHSA-7xxv-wpxj-mx5v"
  ],
  "details": "typed_ast 1.3.0 and 1.3.1 has an ast_for_arguments out-of-bounds read. An attacker with the ability to cause a Python interpreter to parse Python source (but not necessarily execute it) may be able to crash the interpreter process. This could be a concern, for example, in a web-based service that parses (but does not execute) Python code. (This issue also affected certain Python 3.8.0-alpha prereleases.)",
  "id": "PYSEC-2019-131",
  "modified": "2020-03-14T02:15:00Z",
  "published": "2019-11-26T15:15:00Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://github.com/python/typed_ast/commit/156afcb26c198e162504a57caddfe0acd9ed7dce"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python/typed_ast/commit/dc317ac9cff859aa84eeabe03fb5004982545b3b"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python/cpython/commit/dcfcd146f8e6fc5c2fc16a4c192a0c5f5ca8c53c"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python/cpython/commit/a4d78362397fc3bced6ea80fbc7b5f4827aec55e"
    },
    {
      "type": "WEB",
      "url": "https://bugs.python.org/issue36495"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LG5H4Q6LFVRX7SFXLBEJMNQFI4T5SCEA/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-7xxv-wpxj-mx5v"
    }
  ]
}


Log in or create an account to share your comment.




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.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • 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.