Vulnerability Description
In Eclipse Mosquitto 1.5.0 to 1.6.5 inclusive, if a malicious MQTT client sends a SUBSCRIBE packet containing a topic that consists of approximately 65400 or more '/' characters, i.e. the topic hierarchy separator, then a stack overflow will occur.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Eclipse | Mosquitto | >= 1.5, < 1.5.9 |
| Canonical | Ubuntu Linux | 19.04 |
| Opensuse | Backports Sle | 15.0 |
| Opensuse | Leap | 15.1 |
| Fedoraproject | Fedora | 29 |
| Debian | Debian Linux | 8.0 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00077.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00008.htmlMailing ListThird Party Advisory
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=551160Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2019/10/msg00035.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://seclists.org/bugtraq/2019/Nov/25Mailing ListThird Party Advisory
- https://usn.ubuntu.com/4137-1/Third Party Advisory
- https://www.debian.org/security/2019/dsa-4570Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00077.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00008.htmlMailing ListThird Party Advisory
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=551160Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2019/10/msg00035.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
FAQ
What is CVE-2019-11779?
CVE-2019-11779 is a vulnerability with a CVSS score of 6.5 (MEDIUM). In Eclipse Mosquitto 1.5.0 to 1.6.5 inclusive, if a malicious MQTT client sends a SUBSCRIBE packet containing a topic that consists of approximately 65400 or more '/' characters, i.e. the topic hierar...
How severe is CVE-2019-11779?
CVE-2019-11779 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-11779?
Check the references section above for vendor advisories and patch information. Affected products include: Eclipse Mosquitto, Canonical Ubuntu Linux, Opensuse Backports Sle, Opensuse Leap, Fedoraproject Fedora.