Upstream information

CVE-2024-27305 at MITRE

Description

aiosmtpd is a reimplementation of the Python stdlib smtpd.py based on asyncio. aiosmtpd is vulnerable to inbound SMTP smuggling. SMTP smuggling is a novel vulnerability based on not so novel interpretation differences of the SMTP protocol. By exploiting SMTP smuggling, an attacker may send smuggle/spoof e-mails with fake sender addresses, allowing advanced phishing attacks. This issue is also existed in other SMTP software like Postfix. With the right SMTP server constellation, an attacker can send spoofed e-mails to inbound/receiving aiosmtpd instances. This issue has been addressed in version 1.4.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v3 Scores
CVSS detail CNA (GitHub) National Vulnerability Database
Base Score 5.3 5.3
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack Vector Network Network
Attack Complexity Low Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact Low Low
Availability Impact None None
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1221328 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Package Hub 15 SP5
  • python3-aiosmtpd >= 1.2.1-bp155.3.3.1
 Patchnames:
openSUSE-2024-243
openSUSE Leap 15.5
  • python3-aiosmtpd >= 1.2.1-bp155.3.3.1
 Patchnames:
openSUSE-2024-243
openSUSE Tumbleweed
  • python310-aiosmtpd >= 1.4.5-2.1
  • python311-aiosmtpd >= 1.4.5-2.1
  • python312-aiosmtpd >= 1.4.5-2.1
  • python39-aiosmtpd >= 1.4.5-2.1
 Patchnames:
openSUSE-Tumbleweed-2024-13774

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products past their end of life and not receiving proactive updates anymore.
SUSE Package Hub 15 SP5 python-aiosmtpd Released

SUSE Timeline for this CVE

CVE page created: Tue Mar 12 23:00:18 2024
CVE page last modified: Thu Dec 11 17:34:46 2025