CVE-2019-11778: If an MQTT v5 client connects to Eclipse Mosquitto versions 1.6.0 to 1.6.4 inclusive, sets a last will and testament, sets a will delay interval, sets a…

PriorityP424medium5.4CVSS 3.1

AVNACLPRLUINSUCNILAL

EPSS

0.76%

50.7th percentile

If an MQTT v5 client connects to Eclipse Mosquitto versions 1.6.0 to 1.6.4 inclusive, sets a last will and testament, sets a will delay interval, sets a session expiry interval, and the will delay interval is set longer than the session expiry interval, then a use after free error occurs, which has the potential to cause a crash in some situations.

Affected

7 ranges

Vendor	Product	Version range	Fixed in
debian	mosquitto	< mosquitto 1.6.6-1 (bookworm)	mosquitto 1.6.6-1 (bookworm)
eclipse	mosquitto	>= 0 < 1.6.6-1	1.6.6-1
eclipse	mosquitto	>= 0 < 1.6.6-1	1.6.6-1
eclipse	mosquitto	>= 0 < 1.6.6-1	1.6.6-1
eclipse	mosquitto	>= 0 < 1.6.6-1	1.6.6-1
eclipse	mosquitto	>= 1.6 < 1.6.5	1.6.5
the_eclipse_foundation	eclipse_mosquitto	—	—

CVSS provenance

nvdv3.15.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

nvdv2.05.5MEDIUMAV:N/AC:L/Au:S/C:N/I:P/A:P

osv5.4MEDIUM

vendor_debian5.4MEDIUM

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