CVE-2024-34083

Name	CVE-2024-34083
Description	aiosmptd is a reimplementation of the Python stdlib smtpd.py based on asyncio. Prior to version 1.4.6, servers based on aiosmtpd accept extra unencrypted commands after STARTTLS, treating them as if they came from inside the encrypted connection. This could be exploited by a man-in-the-middle attack. Version 1.4.6 contains a patch for the issue.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1072119

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
python-aiosmtpd (PTS)	bullseye	1.2.2-1+deb11u1	fixed
	bookworm	1.4.3-1.1+deb12u1	fixed
	sid, trixie	1.4.6-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Debian Bugs
python-aiosmtpd	source	bullseye	1.2.2-1+deb11u1
python-aiosmtpd	source	bookworm	1.4.3-1.1+deb12u1
python-aiosmtpd	source	(unstable)	1.4.6-1	1072119

Notes

[buster] - python-aiosmtpd <postponed> (Minor issue)
https://github.com/aio-libs/aiosmtpd/security/advisories/GHSA-wgjv-9j3q-jhg8
https://github.com/aio-libs/aiosmtpd/commit/b3a4a2c6ecfd228856a20d637dc383541fcdbfda (v1.4.6)