python-aiosmtpd: CVE-2024-27305

Debian Bug report logs - #1066820
python-aiosmtpd: CVE-2024-27305

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

From: Salvatore Bonaccorso <carnil@debian.org>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: python-aiosmtpd: CVE-2024-27305

Date: Wed, 13 Mar 2024 22:29:19 +0100

Source: python-aiosmtpd
Version: 1.4.4.post2-1
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>

Hi,

The following vulnerability was published for python-aiosmtpd.

CVE-2024-27305[0]:
| aiosmtpd is a reimplementation of the Python stdlib smtpd.py based
| on asyncio. aiosmtpd is vulnerable to inbound SMTP smuggling. SMTP
| smuggling is a novel vulnerability based on not so novel
| interpretation differences of the SMTP protocol. By exploiting SMTP
| smuggling, an attacker may send smuggle/spoof e-mails with fake
| sender addresses, allowing advanced phishing attacks. This issue is
| also existed in other SMTP software like Postfix. With the right
| SMTP server constellation, an attacker can send spoofed e-mails to
| inbound/receiving aiosmtpd instances. This issue has been addressed
| in version 1.4.5. Users are advised to upgrade. There are no known
| workarounds for this vulnerability.


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-2024-27305
    https://www.cve.org/CVERecord?id=CVE-2024-27305
[1] https://github.com/aio-libs/aiosmtpd/security/advisories/GHSA-pr2m-px7j-xg65
[2] https://github.com/aio-libs/aiosmtpd/commit/24b6c79c8921cf1800e27ca144f4f37023982bbb

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore

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