Singleton Class Instance Creation without Proper Locking or Synchronization

Opis

The product implements a Singleton design pattern but does not use appropriate locking or other synchronization mechanism to ensure that the singleton class is only instantiated once.

Skutki

• Other

  Reduce Reliability

  This issue can prevent the product from running reliably, e.g. by making the instantiation process non-thread-safe and introducing deadlock (CWE-833) or livelock conditions. If the relevant code is reachable by an attacker, then this reliability problem might introduce a vulnerability.

Słabość nadrzędna

• CWE-820 Missing Synchronization
• CWE-662 Improper Synchronization

Kiedy powstaje

• Implementation

Dotyczy

Not Language-Specific

Źródła

1. Automated Source Code Reliability Measure (ASCRM) — Object Management Group (OMG), ASCRM-RLB-12, 2016