CVE-2023-28366

mosquitto: 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...

CVE-2023-28366 is fixed in 4 products on 1 platform, first by DEBIAN-CVE-2023-28366, released September 1, 2023. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.5
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0131
70th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
libmosquitto1 · Ubuntu 22.04.1 LTS (jammy) 2.0.11-1ubuntu1.1 libmosquitto1 2.0.11-1ubuntu1.1 Oct 2, 2023
libmosquittopp1 · Ubuntu 22.04.1 LTS (jammy) 2.0.11-1ubuntu1.1 libmosquittopp1 2.0.11-1ubuntu1.1 Oct 2, 2023
mosquitto · Debian 12.15 (bookworm) 2.0.11-1.2+deb12u1 DEBIAN-CVE-2023-28366 Sep 1, 2023
mosquitto · Debian 13.5 (trixie) 2.0.17-1 DEBIAN-CVE-2023-28366 Sep 1, 2023
mosquitto · Debian 14 2.0.17-1 DEBIAN-CVE-2023-28366 Sep 1, 2023
mosquitto · Ubuntu 22.04.1 LTS (jammy) 2.0.11-1ubuntu1.1 mosquitto 2.0.11-1ubuntu1.1 Oct 2, 2023
mosquitto-clients · Ubuntu 22.04.1 LTS (jammy) 2.0.11-1ubuntu1.1 mosquitto-clients 2.0.11-1ubuntu1.1 Oct 2, 2023

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