CVE-2018-3894 Memory corruption in SmartThings Hub STH-ETH-250

Critical 9.9 Published 21 Sep 2018 Updated 17 Sep 2024

Buffer overflow in SmartThings Hub allows remote code execution via crafted HTTP requests to the clips handler.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2018-3894?

CVE-2018-3894 is a critical memory corruption vulnerability in Samsung SmartThings Hub STH-ETH-250, published on 21 Sep 2018. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An exploitable buffer overflow vulnerability exists in the /cameras/XXXX/clips handler of video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250-Firmware version 0.20.17. The strncpy call overflows the destination buffer, which has a size of 52 bytes. An attacker can send an arbitrarily long "startTime" value in order to exploit this vulnerability.

Weakness: CWE-120

Which versions are affected by CVE-2018-3894?

It affects 1 product.

Products include Samsung Sth-Eth-250 Firmware.

How do I fix CVE-2018-3894?

No fix has been published for CVE-2018-3894 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-2018-3894 being exploited?

There is no known exploitation of CVE-2018-3894 in the wild and no public exploit code.

Sources

Also known as GHSA-8ppx-64m7-wrpx.