COMMON WEAKNESS ENUMERATIONDraft

CWE-685

Function Call With Incorrect Number of Arguments

The product calls a function, procedure, or routine, but the caller specifies too many arguments, or too few arguments, which may lead to undefined behavior and resultant weaknesses.

Soyutlama

Variant

Yapı

Simple

Sömürü İhtimali

Medium

Problemi anla

Problem nedir?

The product calls a function, procedure, or routine, but the caller specifies too many arguments, or too few arguments, which may lead to undefined behavior and resultant weaknesses.

Kök neden

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Yaşam döngüsü evresi

Implementation

This problem typically occurs when the programmer makes a typo, or copy and paste errors.

Risk

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Quality Degradation

Etkilenen güvenlik alanları: Other

Savunma

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Testing

Test ve doğrulama yaklaşımı

Detay
Because this function call often produces incorrect behavior it will usually be detected during testing or normal operation of the product. During testing exercise all possible control paths will typically expose this weakness except in rare cases when the incorrect function call accidentally produces the correct results or if the provided argument type is very similar to the expected argument type.

Doğrulama

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Other

While this weakness might be caught by the compiler in some languages, it can occur more frequently in cases in which the called function accepts variable numbers of arguments, such as format strings in C. It also can occur in languages or environments that do not require that functions always be called with the correct number of arguments, such as Perl.