CVE-2023-36632

The legacy email.utils.parseaddr function in Python through 3.11.4 allows attackers to trigger "RecursionError: maximum recursion depth exceeded while calling a Python object" via a crafted argument. This argument is plausibly an untrusted value from an application's input data that was supposed to contain a name and an e-mail address. NOTE: email.utils.parseaddr is categorized as a Legacy API in the documentation of the Python email package. Applications should instead use the email.parser.BytesParser or email.parser.Parser class. NOTE: the vendor's perspective is that this is neither a vulnerability nor a bug. The email package is intended to have size limits and to throw an exception when limits are exceeded; they were exceeded by the example demonstration code.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : 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

References

Link	Resource
https://docs.python.org/3/library/email.html	Product
https://docs.python.org/3/library/email.utils.html	Product
https://github.com/Daybreak2019/PoC_python3.9_Vul/blob/main/RecursionError-email.utils.parseaddr.py	Product
https://github.com/python/cpython/issues/103800	Exploit Issue Tracking

Configurations

Configuration 1 (hide)

cpe:2.3:a:python:python:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2023-06-25 18:15

Updated : 2024-05-17 02:25

NVD link : CVE-2023-36632

Mitre link : CVE-2023-36632

CVE.ORG link : CVE-2023-36632

JSON object : View

Products Affected

python

python

CWE

CWE-674

Uncontrolled Recursion

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