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When the logic thinks that the final value will always be more significant than the original value, the software runs a calculation that can result in an integer overflow or wraparound.
When the logic thinks that the final value will always be more significant than the original value, the software runs a calculation that can result in an integer overflow or wraparound.
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When the calculation is utilized for resource management or execution control, this can introduce other flaws.
When the calculation is utilized for resource management or execution control, this can introduce other flaws.
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When an integer value is incremented to a value that is too big to retain in the associated representation, an integer overflow or wraparound occurs. If this happens, the value may wrap to become an extremely small or negative number.
When an integer value is incremented to a value that is too big to retain in the associated representation, an integer overflow or wraparound occurs. If this happens, the value may wrap to become an extremely small or negative number.
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While this may be intended in situations when wrapping is required, it can have security implications If the wrap is unexpected. This is particularly the case if user-supplied inputs can cause the integer overflow.
While this may be intended in situations when wrapping is required, it can have security implications If the wrap is unexpected. This is particularly the case if user-supplied inputs can cause the integer overflow.
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When the result is used to regulate looping, make a security decision, or decide the offset or size in actions like memory allocation, copying, concatenation, etc., this becomes critical security.
When the result is used to regulate looping, make a security decision, or decide the offset or size in actions like memory allocation, copying, concatenation, etc., this becomes critical security.
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# Potential Impact:
• The flaw will usually result in odd behaviour and, as a result, a crash. In the case of loop index variable overflows, the probability of infinite loops is equally large.
# Potential Impact:
• The flaw will usually result in odd behaviour and, as a result, a crash. In the case of loop index variable overflows, the probability of infinite loops is equally large.
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• This flaw can cause buffer overflows, which can be exploited to run arbitrary code.
• This flaw can cause buffer overflows, which can be exploited to run arbitrary code.
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• Simple data corruption occurs if the value in question is essential to data (rather than flow). Further memory corruption may occur if the wrap around causes other situations such as buffer overflows.
• Simple data corruption occurs if the value in question is essential to data (rather than flow). Further memory corruption may occur if the wrap around causes other situations such as buffer overflows.
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# Mitigation:
• Use a language that prevents this vulnerability from occurring or provides constructs that make it easy to avoid this weakness.
• If possible, choose a language or compiler that automatically checks boundaries.
# Mitigation:
• Use a language that prevents this vulnerability from occurring or provides constructs that make it easy to avoid this weakness.
• If possible, choose a language or compiler that automatically checks boundaries.
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• Ensure that all protocols are clearly stated so that any out-of-bounds conduct can be quickly discovered and that strict adherence to the protocol is required.
• Ensure that all protocols are clearly stated so that any out-of-bounds conduct can be quickly discovered and that strict adherence to the protocol is required.
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• Examine compiler warnings carefully and address issues that could compromise security, such as signed/unsigned memory mismatches or the use of uninitialized variables.
• Examine compiler warnings carefully and address issues that could compromise security, such as signed/unsigned memory mismatches or the use of uninitialized variables.
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