CVE-2019-11779
Published: August 31, 2023Last modified: August 31, 2023
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | mosquitto | Not affected (2.0.15-r1) |
| Stream | mosquitto | Not affected (2.0.17-r0) |
References
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00077.html
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00008.html
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=551160
- https://lists.debian.org/debian-lts-announce/2019/10/msg00035.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D4WMHIM64Q35NGTR6R3ILZUL4MA4ANB5/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HFWQBNFTAVHPUYNGYO2TCPF5PCSWC2Z7/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JWNVTFA2CKXERXRYPYE2YFTZP4GNBGYY/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/D4WMHIM64Q35NGTR6R3ILZUL4MA4ANB5/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/HFWQBNFTAVHPUYNGYO2TCPF5PCSWC2Z7/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/JWNVTFA2CKXERXRYPYE2YFTZP4GNBGYY/
- https://seclists.org/bugtraq/2019/Nov/25
- https://usn.ubuntu.com/4137-1/
- https://www.debian.org/security/2019/dsa-4570