CVE-2019-16754 Information

Description

RIOT 2019.07 contains a NULL pointer dereference in the MQTT-SN implementation (asymcute) potentially allowing an attacker to crash a network node running RIOT. This requires spoofing an MQTT server response. To do so the attacker needs to know the MQTT MsgID of a pending MQTT protocol message and the ephemeral port used by RIOT’s MQTT implementation. Additionally the server IP address is required for spoofing the packet.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://github.com/RIOT-OS/RIOT/pull/12293

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5