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.
Published: 2024-05-18
Score: 5.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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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
History

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Subscriptions

Aio-libs Aiosmtpd
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 : Deferred

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

Modified: 2026-04-15T00:35:42.020

Link: CVE-2024-34083

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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

Weaknesses