Vulnerability-Lookup

ubuntu-cve-2019-19274

Vulnerability from osv_ubuntu

Published

2019-11-26 15:15

Modified

2025-10-24 04:48

Summary

Details

typed_ast 1.3.0 and 1.3.1 has a handle_keywordonly_args 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.)

Severity

7.5 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2019-19274	REPORT
	https://bugs.python.org/issue36495	REPORT
	https://github.com/python/typed_ast/commit/156afc…	REPORT
	https://github.com/python/typed_ast/commit/dc317a…	REPORT
	https://github.com/python/cpython/commit/a4d78362…	REPORT
	https://github.com/python/cpython/commit/dcfcd146…	REPORT
	https://www.cve.org/CVERecord?id=CVE-2019-19274	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python3-typed-ast",
            "binary_version": "1.1.0-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "python3-typed-ast",
        "purl": "pkg:deb/ubuntu/python3-typed-ast@1.1.0-1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.4-1build1",
        "1.1.0-1"
      ]
    }
  ],
  "aliases": [],
  "details": "typed_ast 1.3.0 and 1.3.1 has a handle_keywordonly_args 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": "UBUNTU-CVE-2019-19274",
  "modified": "2025-10-24T04:48:01Z",
  "published": "2019-11-26T15:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-19274"
    },
    {
      "type": "REPORT",
      "url": "https://bugs.python.org/issue36495"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/python/typed_ast/commit/156afcb26c198e162504a57caddfe0acd9ed7dce"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/python/typed_ast/commit/dc317ac9cff859aa84eeabe03fb5004982545b3b"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/python/cpython/commit/a4d78362397fc3bced6ea80fbc7b5f4827aec55e"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/python/cpython/commit/dcfcd146f8e6fc5c2fc16a4c192a0c5f5ca8c53c"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2019-19274"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2019-19274"
  ]
}

CVE-2019-19274 (GCVE-0-2019-19274)

Vulnerability from cvelistv5 – Published: 2019-11-26 14:08 – Updated: 2024-08-05 02:09

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

6 references

URL	Tags
https://github.com/python/typed_ast/commit/156afc…	x_refsource_MISC
https://github.com/python/cpython/commit/dcfcd146…	x_refsource_MISC
https://github.com/python/cpython/commit/a4d78362…	x_refsource_MISC
https://github.com/python/typed_ast/commit/dc317a…	x_refsource_MISC
https://bugs.python.org/issue36495	x_refsource_MISC
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.