CWE-466 상세 정보

A function can return a pointer to memory that is outside of the buffer that the pointer is expected to reference.

취약점 도입 방식

Implementation

적용 가능한 플랫폼

언어

클래스: Memory-Unsafe (Undetermined)
이름: C (Undetermined)
이름: C++ (Undetermined)

일반적인 결과

탐지 방법

Automated Static Analysis

Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)

Automated Dynamic Analysis

Use tools that are integrated during compilation to insert runtime error-checking mechanisms related to memory safety errors, such as AddressSanitizer (ASan) for C/C++ [REF-1518].
효과성 : Moderate

취약점 매핑 메모

근거 : This CWE entry is at the Base level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.
댓글 : Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.

메모

This entry should have a chaining relationship with CWE-119 instead of a parent / child relationship, however the focus of this weakness does not map cleanly to any existing entries in CWE. A new parent is being considered which covers the more generic problem of incorrect return values. There is also an abstract relationship to weaknesses in which one component sends incorrect messages to another component; in this case, one routine is sending an incorrect value to another.

참고 자료

REF-6

Seven Pernicious Kingdoms: A Taxonomy of Software Security Errors
Katrina Tsipenyuk, Brian Chess, Gary McGraw.
https://cwe.mitre.org/documents/sources/SevenPerniciousKingdoms.pdf

REF-44

24 Deadly Sins of Software Security
Michael Howard, David LeBlanc, John Viega.

REF-1518

AddressSanitizer
https://clang.llvm.org/docs/AddressSanitizer.html

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