CVEs-PoC/2021/CVE-2021-3405.md

### [CVE-2021-3405](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3405)
![](https://img.shields.io/static/v1?label=Product&message=libebml&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-787&color=brighgreen)

### Description

A flaw was found in libebml before 1.4.2. A heap overflow bug exists in the implementation of EbmlString::ReadData and EbmlUnicodeString::ReadData in libebml.

### POC

#### Reference
- https://github.com/Matroska-Org/libebml/issues/74

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