Category: SFP Secondary Cluster: Missing Lock
Incomplete
Summary
This category identifies Software Fault Patterns (SFPs) within the Missing Lock cluster (SFP19).
Membership
| ID | Name | Description |
|---|---|---|
| CWE-364 | Signal Handler Race Condition | A signal handler race condition occurs when a program's signal handling routine is vulnerable to timing issues, allowing its state to be corrupted through asynchronous execution. |
| CWE-366 | Race Condition within a Thread | This vulnerability occurs when two or more threads within the same application access and manipulate a shared resource (like a variable, data structure, or file) without proper synchronization. Because the threads can execute in an unpredictable order, they can corrupt the resource's state, leading to crashes, incorrect calculations, or data loss. |
| CWE-368 | Context Switching Race Condition | This vulnerability occurs when an application switches between different security contexts (like privilege levels or domains) using a series of steps that can be interrupted. An attacker can exploit the timing gap during this switch to trick the application into performing actions with the wrong permissions or resources. |
| CWE-413 | Improper Resource Locking | This vulnerability occurs when an application fails to properly lock a shared resource, such as a file or memory location, before performing operations that require exclusive access. |
| CWE-414 | Missing Lock Check | This vulnerability occurs when software fails to verify that a proper synchronization lock is active before accessing or modifying a shared resource, potentially leading to race conditions and data corruption. |
| CWE-543 | Use of Singleton Pattern Without Synchronization in a Multithreaded Context | This vulnerability occurs when a singleton pattern is implemented in a multithreaded application without proper synchronization, potentially leading to multiple instances or corrupted state. |
| CWE-567 | Unsynchronized Access to Shared Data in a Multithreaded Context | This vulnerability occurs when multiple threads in an application can read and modify shared data, like static variables, without proper coordination. This unsynchronized access corrupts data, causes crashes, and leads to unpredictable, often security-critical, behavior. |
| CWE-609 | Double-Checked Locking | Double-checked locking is an insufficient synchronization pattern where a program checks a resource's state, acquires a lock, and checks the state again before initialization, failing to guarantee thread safety across all systems. |
| CWE-662 | Improper Synchronization | This vulnerability occurs when a multi-threaded or multi-process application allows shared resources to be accessed by multiple threads or processes simultaneously, without proper safeguards to enforce exclusive access. |
| CWE-663 | Use of a Non-reentrant Function in a Concurrent Context | This vulnerability occurs when a program uses a function that is not safe for reentrancy within a concurrent environment, such as multi-threaded code or signal handlers. If another thread or signal handler interrupts and calls the same function, it can corrupt shared data, cause crashes, or create unpredictable behavior. |
| CWE-667 | Improper Locking | This vulnerability occurs when a program fails to correctly acquire or release a lock on a shared resource, such as a file, database record, or memory location. This improper synchronization allows other processes or threads to interfere, leading to corrupted data, crashes, or unpredictable behavior. |
| CWE-888 | Software Fault Pattern (SFP) Clusters | CWE identifiers in this view are associated with clusters of Software Fault Patterns (SFPs). |
Vulnerability Mapping Notes
Usage: Prohibited
Reasons: Category
Rationale:
This entry is a Category. Using categories for mapping has been discouraged since 2019. Categories are informal organizational groupings of weaknesses that can help CWE users with data aggregation, navigation, and browsing. However, they are not weaknesses in themselves.
Comment:
See member weaknesses of this category.