python3.11: CVE-2023-27043

Debian Bug report logs - #1059298
python3.11: CVE-2023-27043

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Moritz Mühlenhoff <jmm@inutil.org>

To: submit@bugs.debian.org

Subject: python3.11: CVE-2023-27043

Date: Fri, 22 Dec 2023 14:04:15 +0100

Source: python3.11
X-Debbugs-CC: team@security.debian.org
Severity: important
Tags: security

Hi,

The following vulnerability was published for python3.11.

CVE-2023-27043[0]:
| 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.

https://github.com/python/cpython/issues/102988

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2023-27043
    https://www.cve.org/CVERecord?id=CVE-2023-27043

Please adjust the affected versions in the BTS as needed.

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