Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
Low
Attack Vector
Network
0

CVE-2019-11779

Disclosure Date: September 19, 2019
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

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.

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CVSS V3 Severity and Metrics
Base Score:
6.5 Medium
Impact Score:
3.6
Exploitability Score:
2.8
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High

General Information

Vendors

  • canonical,
  • debian,
  • eclipse,
  • fedoraproject,
  • opensuse

Products

  • backports sle 15.0,
  • debian linux 10.0,
  • debian linux 8.0,
  • fedora 29,
  • fedora 30,
  • fedora 31,
  • leap 15.1,
  • mosquitto,
  • ubuntu linux 19.04
Technical Analysis