cve/2019/CVE-2019-13173.md

### [CVE-2019-13173](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-13173)
![](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

fstream before 1.0.12 is vulnerable to Arbitrary File Overwrite. Extracting tarballs containing a hardlink to a file that already exists in the system, and a file that matches the hardlink, will overwrite the system's file with the contents of the extracted file. The fstream.DirWriter() function is vulnerable.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/ossf-cve-benchmark/CVE-2019-13173