CVE-2021-34387
low-risk
Published 2021-06-21
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.
Do I need to act?
-
0.03% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.3/10
Medium
LOCAL
/ HIGH complexity
Affected Products (1)
Affected Vendors
References (2)
Vendor Advisory
https://nvidia.custhelp.com/app/answers/detail/a_id/5205
Vendor Advisory
https://nvidia.custhelp.com/app/answers/detail/a_id/5205
21
/ 100
low-risk
Severity
16/34 · Moderate
Exploitability
0/34 · Minimal
Exposure
5/34 · Minimal