cve/2022/CVE-2022-36123.md

### [CVE-2022-36123](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-36123)
![](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

The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol (.bss). This allows Xen PV guest OS users to cause a denial of service or gain privileges.

### POC

#### Reference
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.13
- https://github.com/sickcodes/security/blob/master/advisories/SICK-2022-128.md
- https://sick.codes/sick-2022-128

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