Détail du CWE-369

CWE-369

Divide By Zero
Moyen
Draft
2008-04-11
00h00 +00:00
2025-04-03
00h00 +00:00
Notifications pour un CWE
Restez informé de toutes modifications pour un CWE spécifique.
Gestion des notifications

Nom: Divide By Zero

The product divides a value by zero.

Description du CWE

This weakness typically occurs when an unexpected value is provided to the product, or if an error occurs that is not properly detected. It frequently occurs in calculations involving physical dimensions such as size, length, width, and height.

Informations générales

Modes d'introduction

Implementation

Conséquences courantes

Portée Impact Probabilité
AvailabilityDoS: Crash, Exit, or Restart

Note: A Divide by Zero results in a crash.

Exemples observés

Références Description

CVE-2007-3268

Invalid size value leads to divide by zero.

CVE-2007-2723

"Empty" content triggers divide by zero.

CVE-2007-2237

Height value of 0 triggers divide by zero.

Méthodes de détection

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.)
Efficacité : High

Fuzzing

Fuzz testing (fuzzing) is a powerful technique for generating large numbers of diverse inputs - either randomly or algorithmically - and dynamically invoking the code with those inputs. Even with random inputs, it is often capable of generating unexpected results such as crashes, memory corruption, or resource consumption. Fuzzing effectively produces repeatable test cases that clearly indicate bugs, which helps developers to diagnose the issues.
Efficacité : High

Notes de cartographie des vulnérabilités

Justification : 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.
Commentaire : 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.

Références

REF-371

Handling Errors Exceptionally Well in C++
Alex Allain.
https://www.cprogramming.com/tutorial/exceptions.html

REF-372

Exceptions and Exception Handling (C# Programming Guide)
Microsoft.
https://msdn.microsoft.com/pl-pl/library/ms173160(v=vs.100).aspx

Soumission

Nom Organisation Date Date de publication Version
CWE Community 2008-04-11 +00:00 2008-04-11 +00:00 Draft 9

Modifications

Nom Organisation Date Commentaire
Sean Eidemiller Cigital 2008-07-01 +00:00 added/updated demonstrative examples
Eric Dalci Cigital 2008-07-01 +00:00 updated Time_of_Introduction
CWE Content Team MITRE 2008-09-08 +00:00 updated Common_Consequences, Description, Relationships, Other_Notes, Taxonomy_Mappings
CWE Content Team MITRE 2008-11-24 +00:00 updated Relationships, Taxonomy_Mappings
CWE Content Team MITRE 2009-05-27 +00:00 updated Demonstrative_Examples
CWE Content Team MITRE 2009-10-29 +00:00 updated Other_Notes
CWE Content Team MITRE 2011-06-01 +00:00 updated Common_Consequences, Relationships, Taxonomy_Mappings
CWE Content Team MITRE 2011-09-13 +00:00 updated Relationships, Taxonomy_Mappings
CWE Content Team MITRE 2012-05-11 +00:00 updated Relationships, Taxonomy_Mappings
CWE Content Team MITRE 2014-07-30 +00:00 updated Relationships, Taxonomy_Mappings
CWE Content Team MITRE 2015-12-07 +00:00 updated Relationships
CWE Content Team MITRE 2017-11-08 +00:00 updated Demonstrative_Examples, Taxonomy_Mappings
CWE Content Team MITRE 2019-01-03 +00:00 updated Relationships, Taxonomy_Mappings
CWE Content Team MITRE 2020-02-24 +00:00 updated 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 2022-10-13 +00:00 updated References
CWE Content Team MITRE 2023-04-27 +00:00 updated Demonstrative_Examples, Detection_Factors, References, Relationships
CWE Content Team MITRE 2023-06-29 +00:00 updated Mapping_Notes
CWE Content Team MITRE 2025-04-03 +00:00 updated Demonstrative_Examples