CVE-2018-3926 Integer overflow in Samsung

Medium 5.3 Published 28 Aug 2018 Updated 17 Sep 2024

An attacker can cause a denial of service on the Samsung SmartThings Hub by sending a malformed HTTP request that triggers an integer underflow and infinite loop.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2018-3926?

CVE-2018-3926 is a medium-severity vulnerability in Talos Samsung, published on 28 Aug 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An exploitable integer underflow vulnerability exists in the ZigBee firmware update routine of the hubCore binary of the Samsung SmartThings Hub STH-ETH-250 - Firmware version 0.20.17. The hubCore process incorrectly handles malformed files existing in its data directory, leading to an infinite loop, which eventually causes the process to crash. An attacker can send an HTTP request to trigger this vulnerability.

Weakness: CWE-191

Which versions are affected by CVE-2018-3926?

It affects 1 product.

Products include Samsung Sth-Eth-250 Firmware.

How do I fix CVE-2018-3926?

No fix has been published for CVE-2018-3926 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-3926 being exploited?

There is no known exploitation of CVE-2018-3926 in the wild and no public exploit code.

Sources

Also known as GHSA-54c3-2724-2j2f.