CVEs-PoC/2020/CVE-2020-21830.md

### [CVE-2020-21830](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-21830)
![](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 heap based buffer overflow vulneraibility exists in GNU LibreDWG 0.10 via bit_calc_CRC ../../src/bits.c:2213.

### POC

#### Reference
- https://github.com/LibreDWG/libredwg/issues/188#issuecomment-574493134

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