CVEs-PoC/2018/CVE-2018-14612.md

### [CVE-2018-14612](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14612)
![](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

An issue was discovered in the Linux kernel through 4.17.10. There is an invalid pointer dereference in btrfs_root_node() when mounting a crafted btrfs image, because of a lack of chunk block group mapping validation in btrfs_read_block_groups in fs/btrfs/extent-tree.c, and a lack of empty-tree checks in check_leaf in fs/btrfs/tree-checker.c.

### POC

#### Reference
- https://usn.ubuntu.com/3932-1/
- https://usn.ubuntu.com/4118-1/

#### Github
- https://github.com/ARPSyndicate/cvemon