CWE-119 Memory Buffer Error
What this means
SiteShadow flagged a memory safety pattern where code may read/write outside the bounds of a buffer (an umbrella category covering many buffer issues).
Why it matters
Buffer errors can lead to crashes or code execution.
- Crashes and DoS from invalid memory access.
- Information disclosure via out-of-bounds reads.
- RCE in the worst cases, especially in native code.
Safer examples
1) Prefer memory-safe languages and APIs
When possible, use safe containers and bounds-checked access.
2) Validate lengths before copying/parsing
Enforce size limits on inputs before parsing or allocating.
3) Use fuzzing and sanitizers for native code
ASan/UBSan and fuzz tests catch many buffer bugs early.
How SiteShadow detects it (high level)
- Flags suspicious buffer operations and unsafe copy/parse patterns.
- Prioritizes cases where sizes come from untrusted input or complex arithmetic (see
CWE-190).
References
- CWE-119: https://cwe.mitre.org/data/definitions/119.html
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