CVE-2023-36632

描述

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.

如何修補 CVE-2023-36632

要修補 CVE-2023-36632,請將受影響套件升級到下列已修補版本。

• —升級至 3.11.5 或更新版本
• —升級至 3.11.5 或更新版本
• —升級至 3.11.5 或更新版本

CVE-2023-36632 正在被利用嗎?

低 — EPSS 為 1.6%,目前沒有觀察到大規模利用活動。

受影響套件(3)

• from 0, < 3.11.5
• from 0, < 3.11.5
• from 0, < 3.11.5

CVSS 分數

參考連結(5)

• WEBdocs.python.org/3/library/email.html
• WEBdocs.python.org/3/library/email.utils.html
• WEBgithub.com/Daybreak2019/PoC_python3.9_Vul/blob/main/RecursionError-email.utils.parseaddr.py
• WEBgithub.com/python/cpython/issues/103800