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PYSEC-2019-131
Quick fix
PYSEC-2019-131 — typed-ast: upgrade to the fixed version with the command below.
pip install --upgrade 'typed-ast>=156afcb26c198e162504a57caddfe0acd9ed7dce'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.)
Are you affected?
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Affected packages
PyPI/typed-ast
Introduced in:
0Fixed in: 156afcb26c198e162504a57caddfe0acd9ed7dceFix
pip install --upgrade 'typed-ast>=156afcb26c198e162504a57caddfe0acd9ed7dce'References
- https://github.com/python/typed_ast/commit/156afcb26c198e162504a57caddfe0acd9ed7dce[FIX]
- https://github.com/python/typed_ast/commit/dc317ac9cff859aa84eeabe03fb5004982545b3b[FIX]
- https://github.com/python/cpython/commit/dcfcd146f8e6fc5c2fc16a4c192a0c5f5ca8c53c[FIX]
- https://github.com/python/cpython/commit/a4d78362397fc3bced6ea80fbc7b5f4827aec55e[FIX]
- https://bugs.python.org/issue36495[WEB]
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LG5H4Q6LFVRX7SFXLBEJMNQFI4T5SCEA/[WEB]
- https://github.com/advisories/GHSA-7xxv-wpxj-mx5v[ADVISORY]