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CVE-2023-27043

Public on 2023-04-19
Modified on 2024-03-01
Description

The email module of Python through 3.11.3 incorrectly parses e-mail addresses that contain a special character. The wrong portion of an RFC2822 header is identified as the value of the addr-spec. In some applications, an attacker can bypass a protection mechanism in which application access is granted only after verifying receipt of e-mail to a specific domain (e.g., only @company.example.com addresses may be used for signup). This occurs in email/_parseaddr.py in recent versions of Python.

Severity
Medium
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CVSS v3 Base Score
5.3
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core python 2024-10-24 23:54 ALAS2-2024-2686
Amazon Linux 2 - Core python3 2024-10-24 23:54 ALAS2-2024-2687
Amazon Linux 2023 python3.11 2024-12-05 20:34 ALAS2023-2024-788
Amazon Linux 2023 python3.11 2023-07-17 20:45 ALAS2023-2023-252
Amazon Linux 2023 python3.9 2024-12-12 20:19 ALAS2023-2024-790
Amazon Linux 2 - Python3.8 Extra python38 2024-10-24 16:45 ALAS2PYTHON3.8-2024-014

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
NVD CVSSv3 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N