CVE-2021-34434 Information

Description

In Eclipse Mosquitto versions 2.0 to 2.0.11 when using the dynamic security plugin if the ability for a client to make subscriptions on a topic is revoked when a durable client is offline then existing subscriptions for that client are not revoked.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Reference

https://bugs.eclipse.org/bugs/show_bug.cgi?id=575324 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K4WWGVF5BUFPYPCFUPPP4KRIYI5OTJN2/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RLUUM52Y6AEICPXPSRRXC6OBY4H5XKW7/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

NONE

Base Severity

5.3