CVEs-PoC/2021/CVE-2021-40426.md

### [CVE-2021-40426](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40426)
![](https://img.shields.io/static/v1?label=Product&message=libsox&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=14.4.2%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=master%20commit%2042b3557e%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-122%3A%20Heap-based%20Buffer%20Overflow&color=brightgreen)

### Description

A heap-based buffer overflow vulnerability exists in the sphere.c start_read() functionality of Sound Exchange libsox 14.4.2 and master commit 42b3557e. A specially-crafted file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.

### POC

#### Reference
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1434

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