CVE-2019-11778

Published: 18 September 2019

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.

Priority

Cvss 3 Severity Score

5.4

Score breakdown

Status

Package	Release	Status
mosquitto Launchpad, Ubuntu, Debian	bionic	Not vulnerable (code not present)
	disco	Not vulnerable (code not present)
	trusty	Not vulnerable (code not present)
	upstream	Released (1.6.6-1)
	xenial	Not vulnerable (code not present)

Severity score breakdown

Parameter	Value
Base score	5.4
Attack vector	Network
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	Low
Availability impact	Low
Vector	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

References

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