CVE-2018-3914 Memory corruption in SmartThings Hub STH-ETH-250

High 7.5 Published 21 Sep 2018 Updated 16 Sep 2024

A stack-based buffer overflow in the SmartThings Hub allows remote attackers to execute arbitrary code via a long sessionToken.

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-2018-3914?

CVE-2018-3914 is a high-severity memory corruption vulnerability in Samsung SmartThings Hub STH-ETH-250, published on 21 Sep 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An exploitable stack-based buffer overflow vulnerability exists in the retrieval of database fields in the video-core HTTP server of the Samsung SmartThings Hub STH-ETH-250 - Firmware version 0.20.17. The strcpy call overflows the destination buffer, which has a size of 2000 bytes. An attacker can send an arbitrarily long "sessionToken" value in order to exploit this vulnerability.

Weakness: CWE-787

Which versions are affected by CVE-2018-3914?

It affects 1 product.

Products include Samsung Sth-Eth-250 Firmware.

How do I fix CVE-2018-3914?

No fix has been published for CVE-2018-3914 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2018-3914 being exploited?

There is no known exploitation of CVE-2018-3914 in the wild and no public exploit code.

Sources

Also known as GHSA-7373-q85p-xf23.