cve/2023/CVE-2023-38431.md

### [CVE-2023-38431](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-38431)
![](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 before 6.3.8. fs/smb/server/connection.c in ksmbd does not validate the relationship between the NetBIOS header's length field and the SMB header sizes, via pdu_size in ksmbd_conn_handler_loop, leading to an out-of-bounds read.

### POC

#### Reference
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.8

#### Github
- https://github.com/chenghungpan/test_data
- https://github.com/fkie-cad/nvd-json-data-feeds