Upstream information
Description
The Eclipse Mosquitto broker up to version 1.4.15 does not reject strings that are not valid UTF-8. A malicious client could cause other clients that do reject invalid UTF-8 strings to disconnect themselves from the broker by sending a topic string which is not valid UTF-8, and so cause a denial of service for the clients.SUSE information
Overall state of this security issue: Does not affect SUSE products
This issue is currently rated as having moderate severity.
| CVSS detail | National Vulnerability Database |
|---|---|
| Base Score | 3.5 |
| Vector | AV:N/AC:M/Au:S/C:N/I:N/A:P |
| Access Vector | Network |
| Access Complexity | Medium |
| Authentication | Single |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | Partial |
| CVSS detail | National Vulnerability Database | SUSE |
|---|---|---|
| Base Score | 5.3 | 4.3 |
| Vector | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
| Attack Vector | Network | Network |
| Attack Complexity | High | Low |
| Privileges Required | Low | Low |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | None | None |
| Integrity Impact | None | None |
| Availability Impact | High | Low |
| CVSSv3 Version | 3 | 3 |
SUSE Timeline for this CVE
CVE page created: Tue Jun 5 22:34:10 2018CVE page last modified: Mon Oct 6 18:49:38 2025