Medium severity · published Oct 30, 2024
CVE-2024-3935
Eclipse Mosquito: Double free vulnerability
6.5
CVSS
0.7%
EPSS
No
On KEV
Description
In Eclipse Mosquito, versions from 2.0.0 through 2.0.18, if 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, then if the remote connection sends a crafted PUBLISH packet to the broker a double free will occur with a subsequent crash of the broker.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 55% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MO
mosquitto · Eclipse Foundation
2.0.0 through 2.0.18 · source: vendor, NVD, CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-3935
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-3935
Patch
https://github.com/eclipse-mosquitto/mosquitto/commit/ae7a804dadac8f2aaedb24336df8496a9680fda9
Exploit
https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/197
Release Notes
https://mosquitto.org/blog/2024/10/version-2-0-19-released/
lists.debian.org
https://lists.debian.org/debian-lts-announce/2025/02/msg00022.html
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