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GoogleOSV:GHSA-M3JW-62M7-JJCM

HistoryDec 02, 2019 - 6:02 p.m.

typed-ast Out-of-bounds Read

2019-12-0218:02:02

Google

osv.dev

11

EPSS

0.003

Percentile

70.5%

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.)

References

bugs.python.org/issue36495

github.com/python/cpython/commit/a4d78362397fc3bced6ea80fbc7b5f4827aec55e

github.com/python/cpython/commit/dcfcd146f8e6fc5c2fc16a4c192a0c5f5ca8c53c

github.com/python/typed_ast

github.com/python/typed_ast/commit/156afcb26c198e162504a57caddfe0acd9ed7dce

github.com/python/typed_ast/commit/dc317ac9cff859aa84eeabe03fb5004982545b3b

lists.fedoraproject.org/archives/list/[email protected]/message/LG5H4Q6LFVRX7SFXLBEJMNQFI4T5SCEA

nvd.nist.gov/vuln/detail/CVE-2019-19274

EPSS

0.003

Percentile

70.5%

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