CWE-1322 Detail

CWE-1322

Use of Blocking Code in Single-threaded, Non-blocking Context
Incomplete
2020-12-10
00h00 +00:00
2025-12-11
00h00 +00:00
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Gestione notifiche

Nome: Use of Blocking Code in Single-threaded, Non-blocking Context

The product uses a non-blocking model that relies on a single threaded process for features such as scalability, but it contains code that can block when it is invoked.

General Informations

Modes Of Introduction

Implementation

Piattaforme applicabili

Linguaggio

Class: Not Language-Specific (Undetermined)

Conseguenze comuni

Ambito Impatto Probabilità
AvailabilityDoS: Resource Consumption (CPU)

Note: An unexpected call to blocking code can trigger an infinite loop, or a large loop that causes the software to pause and wait indefinitely.

Potential Mitigations

Phases : Implementation
Generally speaking, blocking calls should be replaced with non-blocking alternatives that can be used asynchronously. Expensive computations should be passed off to worker threads, although the correct approach depends on the framework being used.
Phases : Implementation
For expensive computations, consider breaking them up into multiple smaller computations. Refer to the documentation of the framework being used for guidance.

Note sulla mappatura delle vulnerabilità

Giustificazione : 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.
Commento : 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.

Pattern di attacco correlati

CAPEC-ID Nome del pattern di attacco
CAPEC-25 Forced Deadlock
The adversary triggers and exploits a deadlock condition in the target software to cause a denial of service. A deadlock can occur when two or more competing actions are waiting for each other to finish, and thus neither ever does. Deadlock conditions can be difficult to detect.

Invio

Nome Organizzazione Data Data di rilascio Version
Joe Harvey 2019-10-25 +00:00 2020-12-10 +00:00 4.3

Modifiche

Nome Organizzazione Data Commento
CWE Content Team MITRE 2023-04-27 +00:00 updated Relationships
CWE Content Team MITRE 2023-06-29 +00:00 updated Mapping_Notes
CWE Content Team MITRE 2025-12-11 +00:00 updated Applicable_Platforms, Weakness_Ordinalities