CWE-1109
Use of Same Variable for Multiple Purposes
2019-01-03
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特定のCWEの通知
特定のCWEの変更情報をいち早くお届けします。
名前: 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.
一般情報
導入モード
Implementation適用可能なプラットフォーム
言語
クラス： Not Language-Specific (Undetermined)名前： Python (Undetermined)
一般的な結果
| スコープ | 影響 | 可能性 |
|---|---|---|
| Other | Reduce Maintainability 注記：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. | |
| Other | Increase Analytical Complexity 注記：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. |
観察された例
| 参考文献 | 説明 |
|---|---|
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) |
脆弱性マッピングノート
理由 : This entry is primarily a quality issue with no direct security implications.コメント : Look for weaknesses that are focused specifically on insecure behaviors that have more direct security implications.
参考文献
REF-963
Providing a Framework for Effective Software Quality AssessmentRobert 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
REF-1541
Secure Coding Guide for PythonOpenSSF.
https://best.openssf.org/Secure-Coding-Guide-for-Python/
登録情報
| 名前 | 組織 | 日付 | リリース日 | Version |
|---|---|---|---|---|
| CWE Content Team | MITRE | 3.2 |
変更履歴
| 名前 | 組織 | 日付 | コメント |
|---|---|---|---|
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Description | |
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Mapping_Notes | |
| CWE Content Team | MITRE | updated Mapping_Notes | |
| CWE Content Team | MITRE | updated Applicable_Platforms, Common_Consequences, Description, Observed_Examples, Time_of_Introduction | |
| CWE Content Team | MITRE | updated Applicable_Platforms, References, Relationships, Taxonomy_Mappings |
