CWE-832
Unlock of a Resource that is not Locked
2010-12-13
00h00 +00:00
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指定 CWE 通知
随时了解指定 CWE 的变更。
名称: Unlock of a Resource that is not Locked
The product attempts to unlock a resource that is not locked.
基本信息
引入方式
Implementation适用平台
编程语言
类： Not Language-Specific (Undetermined)常见后果
| 影响范围 | 影响 | 可能性 |
|---|---|---|
| Integrity Confidentiality Availability Other | DoS: Crash, Exit, or Restart, Execute Unauthorized Code or Commands, Modify Memory, Other 注意： 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. |
观察示例
| 参考资料 | 描述 |
|---|---|
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. |
检测方法
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.)有效性 : High
漏洞映射说明
依据 : 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.备注 : 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.
提交记录
| 名称 | 组织 | 日期 | 发布日期 | Version |
|---|---|---|---|---|
| CWE Content Team | MITRE | 1.11 |
修改记录
| 名称 | 组织 | 日期 | 备注 |
|---|---|---|---|
| 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 |
