CVE-2024-34083

STARTTLS unencrypted commands injection

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.

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.04%
Affected: aio-libs aiosmtpd
Published at:
Updated at:

References

Link Tags
https://github.com/aio-libs/aiosmtpd/security/advisories/GHSA-wgjv-9j3q-jhg8
https://github.com/aio-libs/aiosmtpd/commit/b3a4a2c6ecfd228856a20d637dc383541fcdbfda
https://nostarttls.secvuln.info

Frequently Asked Questions

What is the severity of CVE-2024-34083?
CVE-2024-34083 has been scored as a medium severity vulnerability.
How to fix CVE-2024-34083?
To fix CVE-2024-34083, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-34083 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-34083 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-34083?
CVE-2024-34083 affects aio-libs aiosmtpd.
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