CVE-2018-12546

Publication date 27 March 2019

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

In Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) when a client publishes a retained message to a topic, then has its access to that topic revoked, the retained message will still be published to clients that subscribe to that topic in the future. In some applications this may result in clients being able cause effects that would otherwise not be allowed.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
mosquitto	19.04 disco	Not affected
	18.10 cosmic	Fixed 1.4.15-2ubuntu0.18.10.1
	18.04 LTS bionic	Fixed 1.4.15-2ubuntu0.18.04.1
	16.04 LTS xenial	Fixed 1.4.8-1ubuntu0.16.04.5
	14.04 LTS trusty	Not affected

Notes

ebarretto

mosquitto's version on Trusty is EOL. The first patch introduced a regression, please see bug below https://bugs.launchpad.net/bugs/1815695

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
mosquitto	Upstream: https://mosquitto.org/files/cve/2018-12546/

Severity score breakdown

Parameter	Value
Base score	6.5 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	High
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N