The Eclipse Mosquitto broker up to version 1.4.15 does not reject strings that are not valid UTF-8. A malicious client could cause other clients that do reject invalid UTF-8 strings to disconnect themselves from the broker by sending a topic string which is not valid UTF-8, and so cause a denial of service for the clients.
{ "availability": "No subscription required", "binaries": [ { "binary_name": "libmosquitto-dev", "binary_version": "1.4.8-1ubuntu0.16.04.7" }, { "binary_name": "libmosquitto-dev-dbgsym", "binary_version": "1.4.8-1ubuntu0.16.04.7" }, { "binary_name": "libmosquitto1", "binary_version": "1.4.8-1ubuntu0.16.04.7" }, { "binary_name": "libmosquitto1-dbg", "binary_version": "1.4.8-1ubuntu0.16.04.7" }, { "binary_name": "libmosquitto1-dbgsym", "binary_version": "1.4.8-1ubuntu0.16.04.7" }, { "binary_name": "libmosquittopp-dev", "binary_version": "1.4.8-1ubuntu0.16.04.7" }, { "binary_name": "libmosquittopp-dev-dbgsym", "binary_version": "1.4.8-1ubuntu0.16.04.7" }, { "binary_name": "libmosquittopp1", "binary_version": "1.4.8-1ubuntu0.16.04.7" }, { "binary_name": "libmosquittopp1-dbg", "binary_version": "1.4.8-1ubuntu0.16.04.7" }, { "binary_name": "libmosquittopp1-dbgsym", "binary_version": "1.4.8-1ubuntu0.16.04.7" }, { "binary_name": "mosquitto", "binary_version": "1.4.8-1ubuntu0.16.04.7" }, { "binary_name": "mosquitto-clients", "binary_version": "1.4.8-1ubuntu0.16.04.7" }, { "binary_name": "mosquitto-clients-dbgsym", "binary_version": "1.4.8-1ubuntu0.16.04.7" }, { "binary_name": "mosquitto-dbg", "binary_version": "1.4.8-1ubuntu0.16.04.7" }, { "binary_name": "mosquitto-dbgsym", "binary_version": "1.4.8-1ubuntu0.16.04.7" }, { "binary_name": "mosquitto-dev", "binary_version": "1.4.8-1ubuntu0.16.04.7" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_name": "libmosquitto-dev", "binary_version": "1.4.15-2ubuntu0.18.04.3" }, { "binary_name": "libmosquitto1", "binary_version": "1.4.15-2ubuntu0.18.04.3" }, { "binary_name": "libmosquitto1-dbg", "binary_version": "1.4.15-2ubuntu0.18.04.3" }, { "binary_name": "libmosquittopp-dev", "binary_version": "1.4.15-2ubuntu0.18.04.3" }, { "binary_name": "libmosquittopp1", "binary_version": "1.4.15-2ubuntu0.18.04.3" }, { "binary_name": "libmosquittopp1-dbg", "binary_version": "1.4.15-2ubuntu0.18.04.3" }, { "binary_name": "mosquitto", "binary_version": "1.4.15-2ubuntu0.18.04.3" }, { "binary_name": "mosquitto-clients", "binary_version": "1.4.15-2ubuntu0.18.04.3" }, { "binary_name": "mosquitto-dbg", "binary_version": "1.4.15-2ubuntu0.18.04.3" }, { "binary_name": "mosquitto-dev", "binary_version": "1.4.15-2ubuntu0.18.04.3" } ] }