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

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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.

Modes of Introduction:

– Architecture and Design

Related Weaknesses

CWE-653
CWE-668
CWE-1189

Consequences

Confidentiality, Availability: DoS: Resource Consumption (Other), Varies by Context, Other

Attackers may infer data that belongs to a trusted agent; the methods used to perform this attack may result in noticeably increased resource consumption.

Potential Mitigations

Phase: Architecture and Design, Implementation

Description:

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

CVE References

InCWE- 1331, Improper Isolation of Shared Resources in Network On Chip (NoC)

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