mosquitto: In versions 1.6 to 2.0.11 of Eclipse Mosquitto, an MQTT v5 client connecting with a large number of user-property pro...
CVE-2021-41039 is fixed in 4 products on 1 platform, first by DEBIAN-CVE-2021-41039, released December 1, 2021. It is not reported as exploited. Patch Radar priority: High.
In versions 1.6 to 2.0.11 of Eclipse Mosquitto, an MQTT v5 client connecting with a large number of user-property properties could cause excessive CPU usage, leading to a loss of performance and possible denial of service.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| libmosquitto1 · Ubuntu 20.04 LTS (focal) | 1.6.9-1ubuntu0.1~esm1 | libmosquitto1 1.6.9-1ubuntu0.1~esm1 | Oct 2, 2023 |
| libmosquitto1 · Ubuntu 22.04.1 LTS (jammy) | 2.0.11-1ubuntu1.1 | libmosquitto1 2.0.11-1ubuntu1.1 | Oct 2, 2023 |
| libmosquittopp1 · Ubuntu 20.04 LTS (focal) | 1.6.9-1ubuntu0.1~esm1 | libmosquittopp1 1.6.9-1ubuntu0.1~esm1 | 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 | DEBIAN-CVE-2021-41039 | Dec 1, 2021 |
| mosquitto · Debian 13.5 (trixie) | 2.0.11-1.2 | DEBIAN-CVE-2021-41039 | Dec 1, 2021 |
| mosquitto · Debian 14 | 2.0.11-1.2 | DEBIAN-CVE-2021-41039 | Dec 1, 2021 |
| mosquitto · Ubuntu 20.04 LTS (focal) | 1.6.9-1ubuntu0.1~esm1 | mosquitto 1.6.9-1ubuntu0.1~esm1 | Oct 2, 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 20.04 LTS (focal) | 1.6.9-1ubuntu0.1~esm1 | mosquitto-clients 1.6.9-1ubuntu0.1~esm1 | 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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