CWE-826
Premature Release of Resource During Expected Lifetime
Incomplete
2010-09-27
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2025-12-11
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Nome: Premature Release of Resource During Expected Lifetime
The product releases a resource that is still intended to be used by itself or another actor.
Informações Gerais
Modos de Introdução
ImplementationPlataformas Aplicáveis
Linguagem
Class: Not Language-Specific (Undetermined)Consequências Comuns
| Escopo | Impacto | Probabilidade |
|---|---|---|
| Confidentiality | Read Application Data, Read Memory Note: If the released resource is subsequently reused or reallocated, then a read operation on the original resource might access sensitive data that is associated with a different user or entity. | |
| Availability | DoS: Crash, Exit, or Restart Note: When the resource is released, the software might modify some of its structure, or close associated channels (such as a file descriptor). When the software later accesses the resource as if it is valid, the resource might not be in an expected state, leading to resultant errors that may lead to a crash. | |
| Integrity Confidentiality Availability | Execute Unauthorized Code or Commands, Modify Application Data, Modify Memory Note: When the resource is released, the software might modify some of its structure. This might affect logic in the sections of code that still assume the resource is active. If the released resource is related to memory and is used in a function call, or points to unexpected data in a write operation, then code execution may be possible upon subsequent accesses. |
Exemplos Observados
| Referências | Descrição |
|---|---|
CVE-2009-3547 | Chain: race condition (CWE-362) might allow resource to be released before operating on it, leading to NULL dereference (CWE-476) |
Métodos de Detecção
Automated Static Analysis
Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)Notas de Mapeamento de Vulnerabilidade
Justificativa : This CWE entry is at the Base level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.Comentário : Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.
Notas
Under-studied and under-reported as of September 2010. This weakness has been reported in high-visibility software, although the focus has been primarily on memory allocation and de-allocation. There are very few examples of this weakness that are not directly related to memory management, although such weaknesses are likely to occur in real-world software for other types of resources.Submissão
| Nome | Organização | Data | Data de lançamento | Version |
|---|---|---|---|---|
| CWE Content Team | MITRE | 1.10 |
Modificações
| Nome | Organização | Data | Comentário |
|---|---|---|---|
| CWE Content Team | MITRE | updated Common_Consequences | |
| CWE Content Team | MITRE | updated Description, Relationships | |
| CWE Content Team | MITRE | updated Common_Consequences, Description | |
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Mapping_Notes | |
| CWE Content Team | MITRE | updated Observed_Examples | |
| CWE Content Team | MITRE | updated Applicable_Platforms, Detection_Factors, Time_of_Introduction, Weakness_Ordinalities |
