cve/2023/CVE-2023-6040.md

### [CVE-2023-6040](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6040)
![](https://img.shields.io/static/v1?label=Product&message=linux&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=0%3C%205.18-rc1%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-125&color=brighgreen)

### Description

An out-of-bounds access vulnerability involving netfilter was reported and fixed as: f1082dd31fe4 (netfilter: nf_tables: Reject tables of unsupported family); While creating a new netfilter table, lack of a safeguard against invalid nf_tables family (pf) values within `nf_tables_newtable` function enables an attacker to achieve out-of-bounds access.

### POC

#### Reference
- http://packetstormsecurity.com/files/177029/Kernel-Live-Patch-Security-Notice-LSN-0100-1.html

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