| Name | CVE-2024-3935 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| mosquitto (PTS) | jessie, jessie (lts) | 1.3.4-2+deb8u4 | fixed |
| stretch (security), stretch (lts), stretch | 1.4.10-3+deb9u5 | fixed |
| buster (security), buster, buster (lts) | 1.5.7-1+deb10u1 | fixed |
| bullseye (security), bullseye | 2.0.11-1+deb11u1 | vulnerable |
| bookworm (security), bookworm | 2.0.11-1.2+deb12u1 | vulnerable |
| sid, trixie | 2.0.20-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| mosquitto | source | jessie | (not affected) | | | |
| mosquitto | source | stretch | (not affected) | | | |
| mosquitto | source | buster | (not affected) | | | |
| mosquitto | source | (unstable) | 2.0.20-1 | | | |
Notes
https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/197
https://mosquitto.org/blog/2024/10/version-2-0-19-released/
[buster] - mosquitto <not-affected> (The vulnerable code was introduced later)
[stretch] - mosquitto <not-affected> (The vulnerable code was introduced later)
[jessie] - mosquitto <not-affected> (The vulnerable code was introduced later)