CWE-121Stack-based Buffer Overflow

Description

Common consequences· 3

• Availability — Modify Memory, DoS: Crash, Exit, or Restart, DoS: Resource Consumption (CPU), DoS: Resource Consumption (Memory)
  Buffer overflows generally lead to crashes. Other attacks leading to lack of availability are possible, including putting the program into an infinite loop.
• Integrity / Confidentiality / Availability / Access Control — Modify Memory, Execute Unauthorized Code or Commands, Bypass Protection Mechanism
  Buffer overflows often can be used to execute arbitrary code, which is usually outside the scope of a program's implicit security policy.
• Integrity / Confidentiality / Availability / Access Control / Other — Modify Memory, Execute Unauthorized Code or Commands, Bypass Protection Mechanism, Other
  When the consequence is arbitrary code execution, this can often be used to subvert any other security service.

Potential mitigations· 5

• [Operation, Build and Compilation]
• [Architecture and Design]Use an abstraction library to abstract away risky APIs. Not a complete solution.
• [Implementation]Implement and perform bounds checking on input.
• [Implementation]Do not use dangerous functions such as gets. Use safer, equivalent functions which check for boundary errors.
• [Operation, Build and Compilation]

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Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.