CVE-2021-41039
Published: 1 December 2021
In versions 1.6 to 2.0.11 of Eclipse Mosquitto, an MQTT v5 client connecting with a large number of user-property properties could cause excessive CPU usage, leading to a loss of performance and possible denial of service.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
mosquitto Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(code-not-present)
|
| focal |
Released
(1.6.9-1ubuntu0.1~esm1)
Available with Ubuntu Pro |
|
| hirsute |
Ignored
(end of life)
|
|
| impish |
Ignored
(end of life)
|
|
| jammy |
Released
(2.0.11-1ubuntu1.1)
|
|
| kinetic |
Ignored
(end of life, was needs-triage)
|
|
| lunar |
Not vulnerable
(2.0.11-1.2)
|
|
| mantic |
Not vulnerable
(2.0.18-1)
|
|
| trusty |
Not vulnerable
(code not present)
|
|
| upstream |
Released
(2.0.12)
|
|
| xenial |
Not vulnerable
(code-not-present)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |