Improper Cleanup on Thrown Exception

Opis

The product does not clean up its state or incorrectly cleans up its state when an exception is thrown, leading to unexpected state or control flow.

Often, when functions or loops become complicated, some level of resource cleanup is needed throughout execution. Exceptions can disturb the flow of the code and prevent the necessary cleanup from happening.

Skutki

• Other

  Varies by Context

  The code could be left in a bad state.

Zapobieganie

• Implementation

  If one breaks from a loop or function by throwing an exception, make sure that cleanup happens or that you should exit the program. Use throwing exceptions sparsely.

Słabość nadrzędna

• CWE-459 Incomplete Cleanup
• CWE-755 Improper Handling of Exceptional Conditions

Kiedy powstaje

• Implementation — REALIZATION: This weakness is caused during implementation of an architectural security tactic.

Dotyczy

C, C++, Java, C#

Źródła

1. The CLASP Application Security Process — Secure Software, Inc., 2005