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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLW0zanctNjJtNy1qamNt

typed-ast Out-of-bounds Read

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.)

Permalink: https://github.com/advisories/GHSA-m3jw-62m7-jjcm
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLW0zanctNjJtNy1qamNt
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: almost 5 years ago
Updated: about 2 months ago

CVSS Score: 7.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Identifiers: GHSA-m3jw-62m7-jjcm, CVE-2019-19274
References:

• https://nvd.nist.gov/vuln/detail/CVE-2019-19274
• https://github.com/python/cpython/commit/a4d78362397fc3bced6ea80fbc7b5f4827aec55e
• https://github.com/python/cpython/commit/dcfcd146f8e6fc5c2fc16a4c192a0c5f5ca8c53c
• https://github.com/python/typed_ast/commit/156afcb26c198e162504a57caddfe0acd9ed7dce
• https://github.com/python/typed_ast/commit/dc317ac9cff859aa84eeabe03fb5004982545b3b
• https://bugs.python.org/issue36495
• https://github.com/advisories/GHSA-m3jw-62m7-jjcm
• https://github.com/pypa/advisory-database/tree/main/vulns/typed-ast/PYSEC-2019-130.yaml
• https://lists.fedoraproject.org/archives/list/[email protected]/message/LG5H4Q6LFVRX7SFXLBEJMNQFI4T5SCEA

Repository: https://github.com/python/cpython
Blast Radius: 36.2

Affected Packages