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medium5.3

CVE-2023-27043

The email module of Python through 3.11.3 incorrectly parses e-mail addresses that contain a special character.

Impact

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.

Affected products

VendorProductAffected versions
FedoraprojectFedora
Versions 38, 39
NetappActive Iq Unified Manager
All versions
NetappOntap Select Deploy Administration Utility
All versions
PythonPython
through 2.7.18
from 3.0 before 3.8.20
from 3.9.0 before 3.9.20
from 3.10.0 before 3.10.15
from 3.11.0 before 3.11.10
from 3.12.0 before 3.12.6

Weakness classification

CWE-20CWE-1286

References