Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Eclipse | Mosquitto | <= 1.4.15 |
| Debian | Debian Linux | 8.0 |
Related Weaknesses (CWE)
References
- http://docs.oasis-open.org/mqtt/disallowed-chars/v1.0/disallowed-chars-v1.0.pdfThird Party Advisory
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=532113Issue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00036.htmlMailing ListThird Party Advisory
- https://usn.ubuntu.com/4023-1/
- https://www.debian.org/security/2018/dsa-4325Third Party Advisory
- http://docs.oasis-open.org/mqtt/disallowed-chars/v1.0/disallowed-chars-v1.0.pdfThird Party Advisory
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=532113Issue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00036.htmlMailing ListThird Party Advisory
- https://usn.ubuntu.com/4023-1/
- https://www.debian.org/security/2018/dsa-4325Third Party Advisory
FAQ
What is CVE-2017-7653?
CVE-2017-7653 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 them...
How severe is CVE-2017-7653?
CVE-2017-7653 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-7653?
Check the references section above for vendor advisories and patch information. Affected products include: Eclipse Mosquitto, Debian Debian Linux.