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.
Advisories
Source ID Title
EUVD EUVD EUVD-2024-1830 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.
Github GHSA Github GHSA GHSA-wgjv-9j3q-jhg8 aiosmtpd STARTTLS unencrypted commands injection
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2024-08-02T02:42:59.884Z

Reserved: 2024-04-30T06:56:33.384Z

Link: CVE-2024-34083

cve-icon Vulnrichment

Updated: 2024-08-02T02:42:59.884Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-05-18T19:15:49.190

Modified: 2024-11-21T09:18:03.363

Link: CVE-2024-34083

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-07-12T22:09:56Z