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CWE-765 - Multiple Unlocks of a Critical Resource

CWE-765

  • Abstraction:
  • Base
  • Structure:
  • Simple
  • Status:
  • Incomplete
Weakness Name

Multiple Unlocks of a Critical Resource

Description

The product unlocks a critical resource more times than intended, leading to an unexpected state in the system.

When the product is operating in a concurrent environment and repeatedly unlocks a critical resource, the consequences will vary based on the type of lock, the lock's implementation, and the resource being protected. In some situations such as with semaphores, the resources are pooled and extra calls to unlock will increase the count for the number of available resources, likely resulting in a crash or unpredictable behavior when the system nears capacity.

Common Consequences

Scope: Availability, Integrity

Impact: DoS: Crash, Exit, or Restart, Modify Memory, Unexpected State

Related Weaknesses
  • Release Date:
  • 2009-05-27
  • Latest Modification Date:
  • 2023-06-29

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