Vulnerability Monitor

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CVE-2023-28366

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.

Published

2023-09-01T16:15:07.790

Last Modified

2025-06-26T14:15:28.433

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

Weaknesses

Type: Primary
CWE-401
Type: Secondary
CWE-401

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	eclipse	mosquitto	< 2.0.16	Yes

References

https://github.com/eclipse/mosquitto/commit/6113eac95a9df634fbc858be542c4a0456bfe7b9 Patch ([email protected])
https://github.com/eclipse/mosquitto/compare/v2.0.15...v2.0.16 Release Notes ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KJ2FMBGVVQEQWTTQB7YLKTAHMX2UM66X/ ([email protected])
https://mosquitto.org/blog/2023/08/version-2-0-16-released/ Release Notes ([email protected])
https://security.gentoo.org/glsa/202401-09 ([email protected])
https://www.compass-security.com/fileadmin/Research/Advisories/2023_02_CSNC-2023-001_Eclipse_Mosquitto_Memory_Leak.txt Third Party Advisory ([email protected])
https://www.debian.org/security/2023/dsa-5511 ([email protected])
https://github.com/eclipse/mosquitto/commit/6113eac95a9df634fbc858be542c4a0456bfe7b9 Patch (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/eclipse/mosquitto/compare/v2.0.15...v2.0.16 Release Notes (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KJ2FMBGVVQEQWTTQB7YLKTAHMX2UM66X/ (af854a3a-2127-422b-91ae-364da2661108)
https://mosquitto.org/blog/2023/08/version-2-0-16-released/ Release Notes (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/202401-09 (af854a3a-2127-422b-91ae-364da2661108)
https://www.compass-security.com/fileadmin/Research/Advisories/2023_02_CSNC-2023-001_Eclipse_Mosquitto_Memory_Leak.txt Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2023/dsa-5511 (af854a3a-2127-422b-91ae-364da2661108)