#VU14101 Integer underflow in SmartThings Hub STH-ETH-250


Published: 2018-07-30

Vulnerability identifier: #VU14101

Vulnerability risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-3926

CWE-ID: CWE-835

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SmartThings Hub STH-ETH-250
Hardware solutions / Firmware

Vendor: Samsung

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists in the ZigBee firmware update routine of the hubCore binary of the Samsung SmartThings Hub due to integer underflow when incorrect handling of malformed files existing in its "data" directory. A remote attacker can send an HTTP request, trigger infinite loop and cause the service to crash.

Mitigation
Install update from vendor's website.

Vulnerable software versions

SmartThings Hub STH-ETH-250: 0.20.17

External links
http://www.talosintelligence.com/reports/TALOS-2018-0593/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


Latest bulletins with this vulnerability


Multiple vulnerabilities in Samsung SmartThings Hub