Advisory Published

USN-7441-1: Eclipse Mosquitto vulnerabilities

First published: Wed Apr 16 2025(Updated: )

It was discovered that Eclipse Mosquitto client incorrectly handled memory when receiving a SUBACK packet. An attacker with a malicious broker could possibly use this issue to execute arbitrary code or cause a denial of service. (CVE-2024-10525) Xiangpu Song discovered that Eclipse Mosquitto broker did not properly manage memory under certain circumstances. A malicious client with a remote connection could possibly use this issue to cause the broker to crash resulting in a denial of service, or another unspecified impact. This issue only affected Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2024-3935)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/libmosquitto1<2.0.18-1ubuntu0.1~esm1
2.0.18-1ubuntu0.1~esm1
Ubuntu=24.04
All of
ubuntu/libmosquittopp1<2.0.18-1ubuntu0.1~esm1
2.0.18-1ubuntu0.1~esm1
Ubuntu=24.04
All of
ubuntu/mosquitto<2.0.18-1ubuntu0.1~esm1
2.0.18-1ubuntu0.1~esm1
Ubuntu=24.04
All of
ubuntu/mosquitto-clients<2.0.18-1ubuntu0.1~esm1
2.0.18-1ubuntu0.1~esm1
Ubuntu=24.04
All of
ubuntu/libmosquitto1<2.0.11-1ubuntu1.2
2.0.11-1ubuntu1.2
Ubuntu=22.04
All of
ubuntu/libmosquittopp1<2.0.11-1ubuntu1.2
2.0.11-1ubuntu1.2
Ubuntu=22.04
All of
ubuntu/mosquitto<2.0.11-1ubuntu1.2
2.0.11-1ubuntu1.2
Ubuntu=22.04
All of
ubuntu/mosquitto-clients<2.0.11-1ubuntu1.2
2.0.11-1ubuntu1.2
Ubuntu=22.04
All of
ubuntu/libmosquitto1<1.6.9-1ubuntu0.1~esm2
1.6.9-1ubuntu0.1~esm2
Ubuntu=20.04
All of
ubuntu/libmosquittopp1<1.6.9-1ubuntu0.1~esm2
1.6.9-1ubuntu0.1~esm2
Ubuntu=20.04
All of
ubuntu/mosquitto<1.6.9-1ubuntu0.1~esm2
1.6.9-1ubuntu0.1~esm2
Ubuntu=20.04
All of
ubuntu/mosquitto-clients<1.6.9-1ubuntu0.1~esm2
1.6.9-1ubuntu0.1~esm2
Ubuntu=20.04
All of
ubuntu/libmosquitto1<1.4.15-2ubuntu0.18.04.3+esm2
1.4.15-2ubuntu0.18.04.3+esm2
Ubuntu=18.04
All of
ubuntu/libmosquittopp1<1.4.15-2ubuntu0.18.04.3+esm2
1.4.15-2ubuntu0.18.04.3+esm2
Ubuntu=18.04
All of
ubuntu/mosquitto<1.4.15-2ubuntu0.18.04.3+esm2
1.4.15-2ubuntu0.18.04.3+esm2
Ubuntu=18.04
All of
ubuntu/mosquitto-clients<1.4.15-2ubuntu0.18.04.3+esm2
1.4.15-2ubuntu0.18.04.3+esm2
Ubuntu=18.04
All of
ubuntu/libmosquitto1<1.4.8-1ubuntu0.16.04.7+esm2
1.4.8-1ubuntu0.16.04.7+esm2
Ubuntu=16.04
All of
ubuntu/libmosquittopp1<1.4.8-1ubuntu0.16.04.7+esm2
1.4.8-1ubuntu0.16.04.7+esm2
Ubuntu=16.04
All of
ubuntu/mosquitto<1.4.8-1ubuntu0.16.04.7+esm2
1.4.8-1ubuntu0.16.04.7+esm2
Ubuntu=16.04
All of
ubuntu/mosquitto-clients<1.4.8-1ubuntu0.16.04.7+esm2
1.4.8-1ubuntu0.16.04.7+esm2
Ubuntu=16.04
All of
ubuntu/libmosquitto0<0.15-2+deb7u3ubuntu0.1+esm1
0.15-2+deb7u3ubuntu0.1+esm1
Ubuntu=14.04
All of
ubuntu/libmosquittopp0<0.15-2+deb7u3ubuntu0.1+esm1
0.15-2+deb7u3ubuntu0.1+esm1
Ubuntu=14.04
All of
ubuntu/mosquitto<0.15-2+deb7u3ubuntu0.1+esm1
0.15-2+deb7u3ubuntu0.1+esm1
Ubuntu=14.04
All of
ubuntu/mosquitto-clients<0.15-2+deb7u3ubuntu0.1+esm1
0.15-2+deb7u3ubuntu0.1+esm1
Ubuntu=14.04
All of
ubuntu/python-mosquitto<0.15-2+deb7u3ubuntu0.1+esm1
0.15-2+deb7u3ubuntu0.1+esm1
Ubuntu=14.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-7441-1?

    The vulnerability reported in USN-7441-1 can potentially lead to remote code execution or denial of service.

  • How do I fix USN-7441-1?

    To remediate USN-7441-1, update to the recommended package versions available for your Ubuntu installation.

  • Which packages are affected by USN-7441-1?

    USN-7441-1 affects multiple Mosquitto-related packages including libmosquitto1, mosquitto, and mosquitto-clients across several Ubuntu versions.

  • Can USN-7441-1 be exploited remotely?

    Yes, USN-7441-1 can be exploited by an attacker via a malicious broker.

  • What systems are impacted by USN-7441-1?

    Systems running Ubuntu 14.04, 16.04, 18.04, 20.04, 22.04, or 24.04 that have the affected Mosquitto packages installed are impacted by USN-7441-1.

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