CVEs-PoC/2018/CVE-2018-14617.md

### [CVE-2018-14617](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14617)
![](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 a NULL pointer dereference and panic in hfsplus_lookup() in fs/hfsplus/dir.c when opening a file (that is purportedly a hard link) in an hfs+ filesystem that has malformed catalog data, and is mounted read-only without a metadata directory.

### POC

#### Reference
- https://bugzilla.kernel.org/show_bug.cgi?id=200297
- https://usn.ubuntu.com/3821-1/
- https://usn.ubuntu.com/3821-2/
- https://usn.ubuntu.com/4118-1/

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