CWE 704

Incorrect Type Conversion or Cast

Weakness ID: 704 (Weakness Class)

Status: Incomplete

Description

Description Summary

The software does not correctly convert an object, resource or structure from one type to a different type.

Time of Introduction

Applicable Platforms

Languages

C: (Often)

C++: (Often)

All

Relationships

Nature	Type	ID	Name	View(s) this relationship pertains to
ChildOf	Weakness Class	664	Improper Control of a Resource Through its Lifetime	Research Concepts (primary)1000
ChildOf	Category	737	CERT C Secure Coding Section 03 - Expressions (EXP)	Weaknesses Addressed by the CERT C Secure Coding Standard (primary)734
ChildOf	Category	741	CERT C Secure Coding Section 07 - Characters and Strings (STR)	Weaknesses Addressed by the CERT C Secure Coding Standard734
ChildOf	Category	747	CERT C Secure Coding Section 49 - Miscellaneous (MSC)	Weaknesses Addressed by the CERT C Secure Coding Standard734
ParentOf	Weakness Variant	588	Attempt to Access Child of a Non-structure Pointer	Research Concepts (primary)1000
ParentOf	Weakness Base	681	Incorrect Conversion between Numeric Types	Research Concepts (primary)1000

Taxonomy Mappings

Mapped Taxonomy Name	Node ID	Mapped Node Name
CERT C Secure Coding	EXP05-C	Do not cast away a const qualification
CERT C Secure Coding	MSC31-C	Ensure that return values are compared against the proper type
CERT C Secure Coding	STR34-C	Cast characters to unsigned types before converting to larger integer sizes
CERT C Secure Coding	STR37-C	Arguments to character handling functions must be representable as an unsigned char

Content History

Submissions
Submission Date	Submitter	Organization	Source
2008-09-09		MITRE	Internal CWE Team
2008-09-09
Modifications
Modification Date	Modifier	Organization	Source
2008-07-01	Eric Dalci	Cigital	External
2008-07-01	updated Time of Introduction
2008-11-24	CWE Content Team	MITRE	Internal
2008-11-24	updated Relationships, Taxonomy Mappings
2009-05-27	CWE Content Team	MITRE	Internal
2009-05-27	updated Description