CVEs-PoC/2021/CVE-2021-34387.md

### [CVE-2021-34387](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34387)
![](https://img.shields.io/static/v1?label=Product&message=NVIDIA%20Jetson%20TX1&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=information%20disclosure%2C%20escalation%20of%20privileges%2C%20denial%20of%20service&color=brighgreen)

### Description

The ARM TrustZone Technology on which Trusty is based on contains a vulnerability in access permission settings where the portion of the DRAM reserved for TrustZone is identity-mapped by TLK with read, write, and execute permissions, which gives write access to kernel code and data that is otherwise mapped read only.

### POC

#### Reference
- https://nvidia.custhelp.com/app/answers/detail/a_id/5205

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