CVE-2021-34434
Published: August 30, 2021Last modified: October 3, 2023
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.3 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | LOW |
| Integrity impact | NONE |
| Availability impact | NONE |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | mosquitto | Not affected (2.0.15-r1) |
| Stream | mosquitto | Not affected (2.0.17-r0) |
References
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=575324
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K4WWGVF5BUFPYPCFUPPP4KRIYI5OTJN2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RLUUM52Y6AEICPXPSRRXC6OBY4H5XKW7/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/K4WWGVF5BUFPYPCFUPPP4KRIYI5OTJN2/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/RLUUM52Y6AEICPXPSRRXC6OBY4H5XKW7/
- https://www.debian.org/security/2023/dsa-5511