cve/2017/CVE-2017-14643.md

### [CVE-2017-14643](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-14643)
![](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

The AP4_HdlrAtom class in Core/Ap4HdlrAtom.cpp in Bento4 version 1.5.0-617 uses an incorrect character data type, leading to a heap-based buffer over-read and application crash in AP4_BytesToUInt32BE in Core/Ap4Utils.h.

### POC

#### Reference
- https://blogs.gentoo.org/ago/2017/09/14/bento4-heap-based-buffer-overflow-in-ap4_bytestouint32be-ap4utils-h/
- https://github.com/axiomatic-systems/Bento4/issues/187

#### Github
- https://github.com/mudongliang/LinuxFlaw
- https://github.com/oneoy/cve-