CVE-2023-28366
First published: Fri Sep 01 2023(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| >=1.3.2<2.0.16 | ||
| Eclipse Mosquitto | >=1.3.2<2.0.16 | |
| debian/mosquitto | <=1.5.7-1+deb10u1<=2.0.11-1<=2.0.11-1.2 | 2.0.11-1+deb11u1 2.0.11-1.2+deb12u1 2.0.18-1 |
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Reference Links
- 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
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KJ2FMBGVVQEQWTTQB7YLKTAHMX2UM66X/
- https://www.debian.org/security/2023/dsa-5511
- https://security.gentoo.org/glsa/202401-09
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KJ2FMBGVVQEQWTTQB7YLKTAHMX2UM66X/
- https://github.com/eclipse/mosquitto/commit/bfb373d774d8530e8d6620776304a3e0b0201793
- https://github.com/eclipse/mosquitto/commit/28d96d8ebca9f6bdb7f272f1095760953e62d828
- https://security-tracker.debian.org/tracker/CVE-2023-28366
Frequently Asked Questions
What is CVE-2023-28366?
CVE-2023-28366 is a vulnerability in Eclipse Mosquitto version 1.3.2 through 2.x before 2.0.16 that allows remote abuse of a memory leak when a client sends many QoS 2 messages with duplicate message IDs.
How does CVE-2023-28366 occur?
CVE-2023-28366 occurs due to a mishandling of EAGAIN from the libc send function in the broker of Eclipse Mosquitto.
What is the severity of CVE-2023-28366?
The severity of CVE-2023-28366 is high, with a severity value of 7.5.
Which software versions are affected by CVE-2023-28366?
Eclipse Mosquitto versions 1.3.2 through 2.x before 2.0.16 are affected by CVE-2023-28366.
How can CVE-2023-28366 be fixed?
To fix CVE-2023-28366, update your Eclipse Mosquitto version to 2.0.16 or newer.
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