### [CVE-2017-12800](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12800) ![](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 EBML_FindNextElement function in ebmlmain.c in libebml2 through 2012-08-26 allows remote attackers to cause a denial of service (Null pointer dereference and application crash) via a crafted mkv file. ### POC #### Reference - http://packetstormsecurity.com/files/144902/mkvalidator-0.5.1-Denial-Of-Service.html - http://seclists.org/fulldisclosure/2017/Nov/19 - https://github.com/Matroska-Org/foundation-source/issues/24 #### Github No PoCs found on GitHub currently.