cve/2021/CVE-2021-30501.md

### [CVE-2021-30501](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30501)
![](https://img.shields.io/static/v1?label=Product&message=upx&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3D%20upx%204.0%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-20&color=brighgreen)

### Description

An assertion abort was found in upx MemBuffer::alloc() in mem.cpp, in version UPX 4.0.0. The flow allows attackers to cause a denial of service (abort) via a crafted file.

### POC

#### Reference
- https://github.com/upx/upx/issues/486

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