cve/2019/CVE-2019-11878.md

### [CVE-2019-11878](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11878)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

An issue was discovered on XiongMai Besder IP20H1 V4.02.R12.00035520.12012.047500.00200 cameras. An attacker on the same local network as the camera can craft a message with a size field larger than 0x80000000 and send it to the camera, related to an integer overflow or use of a negative number. This then crashes the camera for about 120 seconds.

### POC

#### Reference
- https://www.youtube.com/watch?v=SnyPJtDDMFQ

#### Github
- https://github.com/KostasEreksonas/Besder-6024PB-XMA501-ip-camera-security-investigation