### [CVE-2018-21015](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-21015) ![](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 AVC_DuplicateConfig() at isomedia/avc_ext.c in GPAC 0.7.1 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted file. There is "cfg_new->AVCLevelIndication = cfg->AVCLevelIndication;" but cfg could be NULL. ### POC #### Reference - https://github.com/gpac/gpac/issues/1179 - https://github.com/gpac/gpac/issues/1179 #### Github - https://github.com/Marsman1996/pocs