ALPINE-CVE-2023-28366

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2023-28366
Published: 01 Sept 2023, 16:15
Last modified:03 Dec 2025, 22:52

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
3.1 (osv_alpine)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

01 Sept 2023, 16:15
Published
Vulnerability first disclosed
03 Dec 2025, 22:52
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Systems

  • alpine•mosquitto

    < 2.0.16-r0 | < 2.0.16-r0 | < 2.0.16-r0 | < 2.0.16-r0 | < 2.0.16-r0 | < 2.0.16-r0

References (1)