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CVE-2021-34387

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.