CWE-1331: Improper Isolation of Shared Resources in Network On Chip (NoC)

Description

The Network On Chip (NoC) does not isolate or incorrectly isolates its on-chip-fabric and internal resources such that they are shared between trusted and untrusted agents, creating timing channels.

Potential Impact

Confidentiality: DoS: Resource Consumption (Other)

How to Fix

Architecture and Design

Implement priority-based arbitration inside the NoC and have dedicated buffers or virtual channels for routing secret data from trusted agents.

Detection Methods

Manual Analysis: Providing marker flags to send through the interfaces coupled with examination of which users are able to read or manipulate the flags will help verify that the proper isolation has been achieved and ...

Related Weaknesses

References

View on MITRE CWE Database →

Improper Isolation of Shared Resources in Network On Chip (NoC)