CWE-1109
Use of Same Variable for Multiple Purposes
Incomplete
2019-01-03
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2025-12-11
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Notificações para um CWE
Fique informado sobre quaisquer alterações para um CWE específico.
Nome: Use of Same Variable for Multiple Purposes
The code contains a callable, block, or other code element in
which the same variable is used to control more than one unique task or store
more than one instance of data.
Informações Gerais
Modos de Introdução
ImplementationPlataformas Aplicáveis
Linguagem
Class: Not Language-Specific (Undetermined)Consequências Comuns
| Escopo | Impacto | Probabilidade |
|---|---|---|
| Other | Reduce Maintainability Note: This issue makes it more difficult to maintain the product, which indirectly affects security by making it more difficult or time-consuming to find and/or fix vulnerabilities. It also might make it easier to introduce vulnerabilities. | |
| Other | Increase Analytical Complexity Note: Use of the same variable for multiple purposes can make it more difficult for a person to read or understand the code, potentially hiding other quality issues. |
Exemplos Observados
| Referências | Descrição |
|---|---|
CVE-2023-26463 | Chain: IPSec VPN product uses the same variable for multiple purposes in the same function (CWE-1109), leading to incorrect access control (CWE-284) and expired pointer dereference (CWE-825) |
Notas de Mapeamento de Vulnerabilidade
Justificativa : This entry is primarily a quality issue with no direct security implications.Comentário : Look for weaknesses that are focused specifically on insecure behaviors that have more direct security implications.
Referências
REF-963
Providing a Framework for Effective Software Quality AssessmentRobert A. Martin, Lawrence H. Shafer.
https://www.researchgate.net/publication/285403022_PROVIDING_A_FRAMEWORK_FOR_EFFECTIVE_SOFTWARE_QUALITY_MEASUREMENT_MAKING_A_SCIENCE_OF_RISK_ASSESSMENT
Submissão
| Nome | Organização | Data | Data de lançamento | Version |
|---|---|---|---|---|
| CWE Content Team | MITRE | 3.2 |
Modificações
| Nome | Organização | Data | Comentário |
|---|---|---|---|
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Description | |
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Mapping_Notes | |
| CWE Content Team | MITRE | updated Mapping_Notes | |
| CWE Content Team | MITRE | updated Applicable_Platforms, Common_Consequences, Description, Observed_Examples, Time_of_Introduction |
