SB2025042109 - Ubuntu update for mosquitto

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Main Vulnerability Database SB2025042109

SB2025042109 - Ubuntu update for mosquitto

Published: April 21, 2025

Security Bulletin ID SB2025042109
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Out-of-bounds read (CVE-ID: CVE-2024-10525)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition when handling SUBACK packets with no reason codes. A remote attacker can send specially crafted SUBACK packets to the application, trigger an out-of-bounds read error and read contents of memory on the system.


2) Double free (CVE-ID: CVE-2024-3935)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a double free error when a Mosquitto broker is configured to create an outgoing bridge connection, and that bridge connection has an incoming topic configured that makes use of topic remapping. A remote attacker can send specially crafted PUBLISH packet to the application and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References