CVE-2024-10525 · cross-distro fix matrix

CVE-2024-10525: 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.

Affects 3 Linux releases across 3 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2024-10525 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

mosquitto→ fixed in2.0.11-1+deb11u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y mosquitto
```

Debian bookworm

Source: Debian Security Tracker

mosquitto→ fixed in2.0.11-1.2+deb12u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y mosquitto
```

Debian trixie

Source: Debian Security Tracker

mosquitto→ fixed in2.0.20-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y mosquitto
```

Are YOU affected by CVE-2024-10525?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

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