CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 6.3. See the original NVD description below for full technical details.
CVE
CVE-2021-34387
Severity
MEDIUM
CVSS
6.3
EPSS
0.21%
Original NVD 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.
Related CVEs
Other vulnerabilities affecting the same vendor(s)