Detail CWE-1096

CWE-1096

Singleton Class Instance Creation without Proper Locking or Synchronization
2019-01-03
00h00 +00:00
Incomplete
2026-10-28
00h00 +00:00
Notifikasi untuk CWE tertentu
Tetap terinformasi tentang perubahan untuk CWE tertentu.
Kelola notifikasi

Nama: Singleton Class Instance Creation without Proper Locking or Synchronization

The product implements a Singleton design pattern but does not use appropriate locking or other synchronization mechanism to ensure that the singleton class is only instantiated once.

Informasi Umum

Mode Pengenalan

Implementation

Platform yang Berlaku

Bahasa

Kelas: Not Language-Specific (Undetermined)

Konsekuensi Umum

Cakupan Dampak Kemungkinan
OtherReduce Reliability

Catatan: This issue can prevent the product from running reliably, e.g. by making the instantiation process non-thread-safe and introducing deadlock (CWE-833) or livelock conditions. If the relevant code is reachable by an attacker, then this reliability problem might introduce a vulnerability.

Metode Deteksi

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.)
Efektivitas : High

Catatan Pemetaan Kerentanan

Justifikasi : This CWE entry is at the Variant level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.
Komentar : 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.

Referensi

REF-961

Automated Source Code Reliability Measure (ASCRM)
Object Management Group (OMG).
http://www.omg.org/spec/ASCRM/1.0/

REF-1534

Automated Technical Debt Measure, Version 2
OMG.
https://www.omg.org/spec/ATDM2/1.0/PDF

Pengajuan

Nama Organisasi Tanggal Tanggal rilis Version
CWE Content Team MITRE 2018-07-02 +00:00 2019-01-03 +00:00 3.2

Modifikasi

Nama Organisasi Tanggal Komentar
CWE Content Team MITRE 2020-02-24 +00:00 updated Description, Relationships
CWE Content Team MITRE 2020-08-20 +00:00 updated Relationships
CWE Content Team MITRE 2020-12-10 +00:00 updated Relationships
CWE Content Team MITRE 2023-01-31 +00:00 updated Description
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, Common_Consequences, Description, Time_of_Introduction
CWE Content Team MITRE 2026-10-28 +00:00 updated Detection_Factors, References