Vulnerability CVE-2019-11779
Published: 2019-09-19

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.

Type:

CWE-754

CVSS2 => (AV:N/AC:L/Au:S/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4/10
2.9/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Eclipse -> Mosquitto 

 References:
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00077.html
https://bugs.eclipse.org/bugs/show_bug.cgi?id=551160
https://usn.ubuntu.com/4137-1/
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