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.)

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/python/typed_ast/commit/156afcb26c198e162504a57caddfe0acd9ed7dce	Patch Third Party Advisory
https://github.com/python/typed_ast/commit/dc317ac9cff859aa84eeabe03fb5004982545b3b	Patch Third Party Advisory
https://github.com/python/cpython/commit/dcfcd146f8e6fc5c2fc16a4c192a0c5f5ca8c53c	Patch Third Party Advisory
https://github.com/python/cpython/commit/a4d78362397fc3bced6ea80fbc7b5f4827aec55e	Patch Third Party Advisory
https://bugs.python.org/issue36495	Patch Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LG5H4Q6LFVRX7SFXLBEJMNQFI4T5SCEA/

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:python:typed_ast:1.3.0:::::::*
	cpe:2.3:a:python:typed_ast:1.3.1:::::::*

Information

Published : 2019-11-26 07:15

Updated : 2020-03-13 19:15

NVD link : CVE-2019-19274

Mitre link : CVE-2019-19274

JSON object : View

CWE

CWE-125

Out-of-bounds Read

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Products Affected

python

typed_ast

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