cve/2021/CVE-2021-42614.md

### [CVE-2021-42614](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42614)
![](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

A use after free in info_width_internal in bk_info.c in Halibut 1.2 allows an attacker to cause a segmentation fault or possibly have unspecified other impact via a crafted text document.

### POC

#### Reference
- https://carteryagemann.com/halibut-case-study.html#poc-halibut-info-uaf

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/carter-yagemann/ARCUS