Vulnerability Monitor

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CVE-2019-19274

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.)

Published

2019-11-26T15:15:12.770

Last Modified

2024-11-21T04:34:28.540

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-125

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	python	typed_ast	1.3.0	Yes
Application	python	typed_ast	1.3.1	Yes

References

https://bugs.python.org/issue36495 Patch, Vendor Advisory ([email protected])
https://github.com/python/cpython/commit/a4d78362397fc3bced6ea80fbc7b5f4827aec55e Patch, Third Party Advisory ([email protected])
https://github.com/python/cpython/commit/dcfcd146f8e6fc5c2fc16a4c192a0c5f5ca8c53c Patch, Third Party Advisory ([email protected])
https://github.com/python/typed_ast/commit/156afcb26c198e162504a57caddfe0acd9ed7dce Patch, Third Party Advisory ([email protected])
https://github.com/python/typed_ast/commit/dc317ac9cff859aa84eeabe03fb5004982545b3b Patch, Third Party Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LG5H4Q6LFVRX7SFXLBEJMNQFI4T5SCEA/ ([email protected])
https://bugs.python.org/issue36495 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/python/cpython/commit/a4d78362397fc3bced6ea80fbc7b5f4827aec55e Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/python/cpython/commit/dcfcd146f8e6fc5c2fc16a4c192a0c5f5ca8c53c Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/python/typed_ast/commit/156afcb26c198e162504a57caddfe0acd9ed7dce Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/python/typed_ast/commit/dc317ac9cff859aa84eeabe03fb5004982545b3b Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LG5H4Q6LFVRX7SFXLBEJMNQFI4T5SCEA/ (af854a3a-2127-422b-91ae-364da2661108)