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CVE-2024-34083

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Date: May 18, 2024

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.

Language: Python

Severity Score

Related Resources (7)

https://nvd.nist.gov/vuln/detail/CVE-2024-34083
https://github.com/aio-libs/aiosmtpd
https://github.com/aio-libs/aiosmtpd/security/advisories/GHSA-wgjv-9j3q-jhg8
https://nostarttls.secvuln.info
https://github.com/aio-libs/aiosmtpd/commit/b3a4a2c6ecfd228856a20d637dc383541fcdbfda
https://security-tracker.debian.org/tracker/CVE-2024-34083
https://www.mend.io/vulnerability-database/CVE-2024-34083

Severity Score

Weakness Type (CWE)

Acceptance of Extraneous Untrusted Data With Trusted Data

CWE-349

Top Fix

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Upgrade Version

Upgrade to version aiosmtpd - 1.4.6

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CVSS v3.1

Base Score:
Attack Vector (AV): ADJACENT_NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

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