cve/2020/CVE-2020-12659.md

### [CVE-2020-12659](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12659)
![](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 5.6.7. xdp_umem_reg in net/xdp/xdp_umem.c has an out-of-bounds write (by a user with the CAP_NET_ADMIN capability) because of a lack of headroom validation.

### POC

#### Reference
- https://bugzilla.kernel.org/show_bug.cgi?id=207225
- https://bugzilla.kernel.org/show_bug.cgi?id=207225
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.7
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.7
- https://usn.ubuntu.com/4388-1/

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