cve/2018/CVE-2018-7731.md

### [CVE-2018-7731](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7731)
![](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 Exempi through 2.4.4. XMPFiles/source/FormatSupport/WEBP_Support.cpp does not check whether a bitstream has a NULL value, leading to a NULL pointer dereference in the WEBP::VP8XChunk class.

### POC

#### Reference
- https://bugs.freedesktop.org/show_bug.cgi?id=105247
- https://bugs.freedesktop.org/show_bug.cgi?id=105247

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