CWE-832
Unlock of a Resource that is not Locked
2010-12-13
00h00 +00:00
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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: Unlock of a Resource that is not Locked
The product attempts to unlock a resource that is not locked.
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)一般的な結果
| スコープ | 影響 | 可能性 |
|---|---|---|
| Integrity Confidentiality Availability Other | DoS: Crash, Exit, or Restart, Execute Unauthorized Code or Commands, Modify Memory, Other 注記：Depending on the locking functionality, an unlock of a non-locked resource might corrupt the state of the product, possibly including denial of service, memory corruption, or other modification to the resource (or its associated metadata that is used for tracking locks). In some cases, an unlock operation might not have any adverse effects. |
観察された例
| 参考文献 | 説明 |
|---|---|
CVE-2010-4210 | function in OS kernel unlocks a mutex that was not previously locked, causing a panic or overwrite of arbitrary memory. |
CVE-2008-4302 | Chain: OS kernel does not properly handle a failure of a function call (CWE-755), leading to an unlock of a resource that was not locked (CWE-832), with resultant crash. |
CVE-2009-1243 | OS kernel performs an unlock in some incorrect circumstances, leading to panic. |
検出方法
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.)有効性 : High
脆弱性マッピングノート
理由 : 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.コメント : 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.
登録情報
| 名前 | 組織 | 日付 | リリース日 | Version |
|---|---|---|---|---|
| CWE Content Team | MITRE | 1.11 |
変更履歴
| 名前 | 組織 | 日付 | コメント |
|---|---|---|---|
| CWE Content Team | MITRE | updated Common_Consequences | |
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Common_Consequences, Description | |
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Mapping_Notes | |
| CWE Content Team | MITRE | updated Applicable_Platforms, Detection_Factors, Time_of_Introduction, Weakness_Ordinalities | |
| CWE Content Team | MITRE | updated Common_Consequences, Description |
