Szczegóły CWE-1109

CWE-1109

Use of Same Variable for Multiple Purposes
Incomplete
2019-01-03
00h00 +00:00
2025-12-11
00h00 +00:00
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Nazwa: Use of Same Variable for Multiple Purposes

The code contains a callable, block, or other code element in which the same variable is used to control more than one unique task or store more than one instance of data.

Informacje ogólne

Sposoby wprowadzenia

Implementation

Odpowiednie platformy

Język

Class: Not Language-Specific (Undetermined)

Typowe konsekwencje

Zakres Wpływ Prawdopodobieństwo
OtherReduce Maintainability

Note: This issue makes it more difficult to maintain the product, which indirectly affects security by making it more difficult or time-consuming to find and/or fix vulnerabilities. It also might make it easier to introduce vulnerabilities.
OtherIncrease Analytical Complexity

Note: Use of the same variable for multiple purposes can make it more difficult for a person to read or understand the code, potentially hiding other quality issues.

Zaobserwowane przykłady

Odniesienia Opis

CVE-2023-26463

Chain: IPSec VPN product uses the same variable for multiple purposes in the same function (CWE-1109), leading to incorrect access control (CWE-284) and expired pointer dereference (CWE-825)

Uwagi dotyczące mapowania podatności

Uzasadnienie : This entry is primarily a quality issue with no direct security implications.
Komentarz : Look for weaknesses that are focused specifically on insecure behaviors that have more direct security implications.

Odniesienia

REF-963

Providing a Framework for Effective Software Quality Assessment
Robert A. Martin, Lawrence H. Shafer.
https://www.researchgate.net/publication/285403022_PROVIDING_A_FRAMEWORK_FOR_EFFECTIVE_SOFTWARE_QUALITY_MEASUREMENT_MAKING_A_SCIENCE_OF_RISK_ASSESSMENT

Zgłoszenie

Nazwa Organizacja Data Data wydania Version
CWE Content Team MITRE 2018-07-02 +00:00 2019-01-03 +00:00 3.2

Modyfikacje

Nazwa Organizacja Data Komentarz
CWE Content Team MITRE 2020-02-24 +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 2024-02-29 +00:00 updated Mapping_Notes
CWE Content Team MITRE 2025-12-11 +00:00 updated Applicable_Platforms, Common_Consequences, Description, Observed_Examples, Time_of_Introduction