What is the severity of CVE-2024-10525?

CVE-2024-10525 is considered a medium severity vulnerability due to the potential for out-of-bounds memory access.

How do I fix CVE-2024-10525?

To fix CVE-2024-10525, upgrade Eclipse Mosquitto to version 2.0.19 or later.

What versions of Eclipse Mosquitto are affected by CVE-2024-10525?

CVE-2024-10525 affects Eclipse Mosquitto versions from 1.3.2 through 2.0.18.

What type of attack does CVE-2024-10525 enable?

CVE-2024-10525 allows an attacker to exploit a malicious broker's crafted SUBACK packet to cause a client to make out-of-bounds memory access.

Is the eclipse mosquitto_sub client impacted by CVE-2024-10525?

Yes, the mosquitto_sub client using libmosquitto is impacted by CVE-2024-10525.

Vulnerability/
CVE-2024-10525

critical

9.8

CWE

122 787

30/10/2024

29/1/2025

CVE-2024-10525: Eclipse Mosquito: Heap Buffer Overflow in my_subscribe_callback

First published: Wed Oct 30 2024(Updated: )

In Eclipse Mosquitto, from version 1.3.2 through 2.0.18, if a malicious broker sends a crafted SUBACK packet with no reason codes, a client using libmosquitto may make out of bounds memory access when acting in its on_subscribe callback. This affects the mosquitto_sub and mosquitto_rr clients.

Credit: emo@eclipse.org

Affected Software	Affected Version	How to fix
Eclipse Mosquitto	>=1.3.2<=2.0.18
Eclipse Mosquitto	>=1.3.2<2.0.19

Remedy

https://github.com/eclipse-mosquitto/mosquitto/commit/8ab20b4ba4204fdcdec78cb4d9f03c944a6e0e1c

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2024-10525?
CVE-2024-10525 is considered a medium severity vulnerability due to the potential for out-of-bounds memory access.
How do I fix CVE-2024-10525?
To fix CVE-2024-10525, upgrade Eclipse Mosquitto to version 2.0.19 or later.
What versions of Eclipse Mosquitto are affected by CVE-2024-10525?
CVE-2024-10525 affects Eclipse Mosquitto versions from 1.3.2 through 2.0.18.
What type of attack does CVE-2024-10525 enable?
CVE-2024-10525 allows an attacker to exploit a malicious broker's crafted SUBACK packet to cause a client to make out-of-bounds memory access.
Is the eclipse mosquitto_sub client impacted by CVE-2024-10525?
Yes, the mosquitto_sub client using libmosquitto is impacted by CVE-2024-10525.

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Frequently Asked Questions

What is the severity of CVE-2024-10525?
CVE-2024-10525 is considered a medium severity vulnerability due to the potential for out-of-bounds memory access.
How do I fix CVE-2024-10525?
To fix CVE-2024-10525, upgrade Eclipse Mosquitto to version 2.0.19 or later.
What versions of Eclipse Mosquitto are affected by CVE-2024-10525?
CVE-2024-10525 affects Eclipse Mosquitto versions from 1.3.2 through 2.0.18.
What type of attack does CVE-2024-10525 enable?
CVE-2024-10525 allows an attacker to exploit a malicious broker's crafted SUBACK packet to cause a client to make out-of-bounds memory access.
Is the eclipse mosquitto_sub client impacted by CVE-2024-10525?
Yes, the mosquitto_sub client using libmosquitto is impacted by CVE-2024-10525.