iosmptd Fixes Security Vulnerability in smtpd.py
CVE-2024-34083

5.4MEDIUM

Key Information:

Vendor

Aio-libs

Status
AiOSmtpd
Vendor
CVE Published:
18 May 2024

What is CVE-2024-34083?

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.

Affected Version(s)

aiosmtpd < 1.4.6

References

https://github.com/aio-libs/aiosmtpd/security/advisories/...
x_refsource_CONFIRM
https://github.com/aio-libs/aiosmtpd/commit/b3a4a2c6ecfd2...
x_refsource_MISC
https://nostarttls.secvuln.info
x_refsource_MISC

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.