CVEs-PoC/2020/CVE-2020-10565.md

### [CVE-2020-10565](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10565)
![](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

grub2-bhyve, as used in FreeBSD bhyve before revision 525916 2020-02-12, does not validate the address provided as part of a memrw command (read_* or write_*) by a guest through a grub2.cfg file. This allows an untrusted guest to perform arbitrary read or write operations in the context of the grub-bhyve process, resulting in code execution as root on the host OS.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/renorobert/grub-bhyve-bugs