Use After Free Vulnerability in Eclipse Mosquitto MQTT Client
CVE-2019-11778

5.4MEDIUM

Key Information:

Vendor

The Eclipse Foundation

Status
Eclipse Mosquitto
Vendor
CVE Published:
18 September 2019

What is CVE-2019-11778?

A use after free vulnerability exists in Eclipse Mosquitto when an MQTT v5 client sets a last will and testament with a will delay interval longer than the session expiry interval. This flaw can lead to a crash under certain conditions, posing significant risks during MQTT communications.

Affected Version(s)

Eclipse Mosquitto 1.6.0 to 1.6.4

References

https://bugs.eclipse.org/bugs/show_bug.cgi?id=551162
x_refsource_CONFIRM

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.