cve/2018/CVE-2018-3903.md

### [CVE-2018-3903](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-3903)
![](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

On Samsung SmartThings Hub STH-ETH-250 devices with 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. An attacker can send an HTTP request to trigger this vulnerability. The memcpy call overflows the destination buffer, which has a size of 512 bytes. An attacker can send an arbitrarily long "url" value in order to overwrite the saved-PC with 0x42424242.

### POC

#### Reference
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0574

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/lnick2023/nicenice
- https://github.com/qazbnm456/awesome-cve-poc
- https://github.com/xbl3/awesome-cve-poc_qazbnm456