CVEs-PoC/2021/CVE-2021-21897.md

### [CVE-2021-21897](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21897)
![](https://img.shields.io/static/v1?label=Product&message=Ribbonsoft&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-191%3A%20Integer%20Underflow%20(Wrap%20or%20Wraparound)&color=brighgreen)

### Description

A code execution vulnerability exists in the DL_Dxf::handleLWPolylineData functionality of Ribbonsoft dxflib 3.17.0. A specially-crafted .dxf 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-2021-1346

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