### [CVE-2021-40943](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40943)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brightgreen)

### Description

In Bento4 1.6.0-638, there is a null pointer reference in the function AP4_DescriptorListInspector::Action function in Ap4Descriptor.h:124 , as demonstrated by GPAC. This can cause a denial of service (DOS).

### POC

#### Reference
- https://github.com/axiomatic-systems/Bento4/issues/643

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