CVE-2021-34432
Published: 27 July 2021
In Eclipse Mosquitto versions 2.07 and earlier, the server will crash if the client tries to send a PUBLISH packet with topic length = 0.
Notes
Author | Note |
---|---|
gianz |
PoC: https://bugs.eclipse.org/bugs/show_bug.cgi?id=574141 (first message) The CVE indicates versions <= 2.0.7 as affected. However only versions >= 2.0.0 and <= 2.0.7 are vulnerable. No crash detected running the PoC against any previous version we support. |
Priority
Status
Package | Release | Status |
---|---|---|
mosquitto
Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(code not present)
|
focal |
Not vulnerable
(code not present)
|
|
hirsute |
Not vulnerable
(2.0.10-3)
|
|
impish |
Not vulnerable
|
|
jammy |
Not vulnerable
(2.0.11-1ubuntu1)
|
|
kinetic |
Not vulnerable
|
|
lunar |
Not vulnerable
(2.0.11-1.2)
|
|
mantic |
Not vulnerable
(2.0.18-1)
|
|
trusty |
Not vulnerable
(code not present)
|
|
upstream |
Released
(2.0.8-1)
|
|
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 |