CVE-2023-28366
- State
- Published
- Severity
- 7.5 High
- Published
- Sep 1, 2023
- Updated
- Jun 26, 2025
- Reserved
- Mar 15, 2023
Description
The broker in Eclipse Mosquitto 1.3.2 through 2.x before 2.0.16 has a memory leak that can be abused remotely when a client sends many QoS 2 messages with duplicate message IDs, and fails to respond to PUBREC commands. This occurs because of mishandling of EAGAIN from the libc send function.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CISA-ADP |
Weaknesses
- CWE-401 Missing Release of Memory after Effective Lifetime
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://github.com/eclipse/mosquitto/compare/v2.0.15...v2.0.16
- https://www.compass-security.com/fileadmin/Research/Advisories/2023_02_CSNC-2023-001_Eclipse_Mosquitto_Memory_Leak.txt
- https://mosquitto.org/blog/2023/08/version-2-0-16-released/
- https://github.com/eclipse/mosquitto/commit/6113eac95a9df634fbc858be542c4a0456bfe7b9
- FEDORA-2023-9adc4be8b0vendor-advisory
- DSA-5511vendor-advisory
- GLSA-202401-09vendor-advisory
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