CVE-2021-34431

In Eclipse Mosquitto version 1.6 to 2.0.10, if an authenticated client that had connected with MQTT v5 sent a crafted CONNECT message to the broker a memory leak would occur, which could be used to provide a DoS attack against the broker.

CVSS v3 6.5 MEDIUM
CVSS v2.0 4.0 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:N/I:N/A:P

Exploitability : 8.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://bugs.eclipse.org/bugs/show_bug.cgi?id=573191	Mailing List Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:eclipse:mosquitto:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-07-22 14:15

Updated : 2021-08-03 17:49

NVD link : CVE-2021-34431

Mitre link : CVE-2021-34431

CVE.ORG link : CVE-2021-34431

JSON object : View

Products Affected

eclipse

mosquitto

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

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