cve/2018/CVE-2018-3866.md

### [CVE-2018-3866](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-3866)
![](https://img.shields.io/static/v1?label=Product&message=Samsung&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Classic%20Buffer%20Overflow&color=brighgreen)

### Description

An exploitable buffer overflow vulnerability exists in the samsungWifiScan handler of video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250 - Firmware version 0.20.17. The video-core process incorrectly extracts fields from a user-controlled JSON payload, leading to a buffer overflow on the stack. The strcpy at [8] overflows the destination buffer, which has a size of 40 bytes. An attacker can send an arbitrarily long 'callbackUrl' value in order to exploit this vulnerability.

### POC

#### Reference
- https://talosintelligence.com/vulnerability_reports/TALOS-2018-0548

#### Github
No PoCs found on GitHub currently.