Tag Archives: Always-Incorrect Control Flow Implementation

CWE-670 – Always-Incorrect Control Flow Implementation

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Description

The code contains a control flow path that does not reflect the algorithm that the path is intended to implement, leading to incorrect behavior any time this path is navigated.

This weakness captures cases in which a particular code segment is always incorrect with respect to the algorithm that it is implementing. For example, if a C programmer intends to include multiple statements in a single block but does not include the enclosing braces (CWE-483), then the logic is always incorrect. This issue is in contrast to most weaknesses in which the code usually behaves correctly, except when it is externally manipulated in malicious ways.

Modes of Introduction:

– Architecture and Design

 

 

Related Weaknesses

CWE-691

 

Consequences

Other: Other, Alter Execution Logic

 

Potential Mitigations

CVE References

  • CVE-2021-3011
    • virtual interrupt controller in a virtualization product allows crash of host by writing a certain invalid value to a register, which triggers a fatal error instead of returning an error code