CVEs-PoC/2020/CVE-2020-11558.md

### [CVE-2020-11558](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11558)
![](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 in libgpac.a in GPAC 0.8.0, as demonstrated by MP4Box. audio_sample_entry_Read in isomedia/box_code_base.c does not properly decide when to make gf_isom_box_del calls. This leads to various use-after-free outcomes involving mdia_Read, gf_isom_delete_movie, and gf_isom_parse_movie_boxes.

### POC

#### Reference
- https://github.com/gpac/gpac/issues/1440

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