Security context
What an agent needs to avoid regressing past fixes and find the next vuln in this repo.
google/flatbuffers
master @ 81edeb1
15
Fixes
2
CVEs
CRITICAL
Peak severity
50.0%
Coverage
Highlights
Out-of-bounds Read: 8 prior fixes. Scrutinize any change in this area.
include/flatbuffers/flatbuffers.h: most-fixed (3 issues). Treat as high-risk during review.
10 high-severity fixes in this history; regressions here are high-impact.
Recurring patterns
The bug types that recur here, drawn from past fixes, not open vulnerabilities.
Out-of-bounds Read: The FlatBuffers C++ Verifier is highly sensitive to buffer validation logic. Missing pointer boundary checks and integer wrap-arounds when validating sizes can allow malicious payloads to read out of bounds. This is evidenced by critical verifier bounds fixes.
Out-of-bounds Read: Schema parsing suffers from classic indexing errors, such as off-by-one errors and unchecked field-ID-to-index mappings, allowing malicious IDL definitions or serialized tables to trigger out-of-bounds vector reads.
Memory Safety: The Rust implementation historically suffered from soundess issues, type confusion, and improper safe-API wrappings that allowed unsafe actions (like transmuting or copying nonoverlapping memory blocks) to occur inside safe-labeled functions.