Error Handling Flaw in RIOT MQTT-SN Implementation Affects RIOT OS
CVE-2019-17389

7.5HIGH

Key Information:

Vendor

Riot-os

Status
Riot
Vendor
CVE Published:
9 October 2019

What is CVE-2019-17389?

In the RIOT Operating System version 2019.07, the MQTT-SN implementation contains an error handling flaw where errors during read operations on a UDP socket are mishandled. This issue leads to the premature termination of the receive loop. As a result, an attacker can exploit this vulnerability by sending a large packet, causing the MQTT-SN client to become unresponsive until a device restart occurs, which can severely disrupt service functionality.

References

https://github.com/RIOT-OS/RIOT/pull/12382
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.