CVE-2019-17389
HIGHCVSS 7.5/10EPSS 1.38%
Last modified
CVE-2019-17389 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In RIOT 2019.07, the MQTT-SN implementation (asymcute) mishandles errors occurring during a read operation on a UDP socket. The receive loop ends. EPSS estimates a 1.38% chance of exploitation in the next 30 days.
Description
In RIOT 2019.07, the MQTT-SN implementation (asymcute) mishandles errors occurring during a read operation on a UDP socket. The receive loop ends. This allows an attacker (via a large packet) to prevent a RIOT MQTT-SN client from working until the device is restarted.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Riot-Os | Riot | 2019.07 |
References
- https://github.com/RIOT-OS/RIOT/pull/12382Patch, Third Party Advisory
- https://github.com/RIOT-OS/RIOT/pull/12382Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-17389?
In RIOT 2019.07, the MQTT-SN implementation (asymcute) mishandles errors occurring during a read operation on a UDP socket. The receive loop ends. This allows an attacker (via a large packet) to prevent a RIOT MQTT-SN client from working until the device is restarted.
How severe is CVE-2019-17389?
CVE-2019-17389 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.38% probability of exploitation in the next 30 days.
How do I fix CVE-2019-17389?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2019-17389?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST