名稱: Missing Reference to Active Allocated Resource

The product does not properly maintain a reference to a resource that has been allocated, which prevents the resource from being reclaimed.

一般資訊

引入方式

Implementation

適用平台

程式語言

類別： Not Language-Specific (Undetermined)

常見後果

範圍	影響	可能性
Availability	DoS: Resource Consumption (Memory), DoS: Resource Consumption (Other) 注意：If an attacker can create the conditions that mistakenly release a reference to a resource, then the attacker could prevent the resource from being reclaimed, deplete the available resource pool, and prevent other processes or threads from accessing the same type of resource.

潛在緩解措施

Phases : Operation // Architecture and Design

偵測方法

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.)

漏洞對應備注

理由說明 : 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.
備註 : 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.

備注

This weakness might not frequently apply to applications written in languages or frameworks that automatically perform garbage collection, since the removal of all references may act as a signal that the resource is ready to be reclaimed.

提交

名稱	機構	日期	發布日期	Version
CWE Content Team	MITRE	2009-05-13 +00:00	2009-05-27 +00:00	1.4

修改記錄

名稱	機構	日期	備註
CWE Content Team	MITRE	2009-07-27 +00:00	updated Relationships
CWE Content Team	MITRE	2010-04-05 +00:00	updated Potential_Mitigations
CWE Content Team	MITRE	2011-06-01 +00:00	updated Common_Consequences
CWE Content Team	MITRE	2012-05-11 +00:00	updated Relationships
CWE Content Team	MITRE	2012-10-30 +00:00	updated Potential_Mitigations
CWE Content Team	MITRE	2014-07-30 +00:00	updated Relationships, Taxonomy_Mappings
CWE Content Team	MITRE	2017-01-19 +00:00	updated Relationships
CWE Content Team	MITRE	2017-11-08 +00:00	updated Likelihood_of_Exploit, Taxonomy_Mappings
CWE Content Team	MITRE	2019-01-03 +00:00	updated Common_Consequences, Maintenance_Notes, Relationships, Theoretical_Notes
CWE Content Team	MITRE	2020-02-24 +00:00	updated Relationships, Taxonomy_Mappings
CWE Content Team	MITRE	2022-10-13 +00:00	updated Relationships, Taxonomy_Mappings
CWE Content Team	MITRE	2023-01-31 +00:00	updated Description
CWE Content Team	MITRE	2023-04-27 +00:00	updated Relationships, Taxonomy_Mappings, Time_of_Introduction
CWE Content Team	MITRE	2023-06-29 +00:00	updated Mapping_Notes
CWE Content Team	MITRE	2025-12-11 +00:00	updated Applicable_Platforms, Detection_Factors, Weakness_Ordinalities
CWE Content Team	MITRE	2026-10-28 +00:00	updated Common_Consequences, Description, Other_Notes

CWE-771 詳細資料

CWE-771