Description
The software incorrectly checks a return value from a function, which prevents the software from detecting errors or exceptional conditions.
Important and common functions will return some value about the success of its actions. This will alert the program whether or not to handle any errors caused by that function.
Modes of Introduction:
– Implementation
Likelihood of Exploit: Low
Related Weaknesses
CWE-573
CWE-754
Consequences
Availability, Integrity: Unexpected State, DoS: Crash, Exit, or Restart
An unexpected return value could place the system in a state that could lead to a crash or other unintended behaviors.
Potential Mitigations
Phase: Architecture and Design
Description:
Use a language or compiler that uses exceptions and requires the catching of those exceptions.
Phase: Implementation
Description:
Properly check all functions which return a value.
Phase: Implementation
Description:
When designing any function make sure you return a value or throw an exception in case of an error.
CVE References
