segb-forensic is designed to parse untrusted Apple SEGB (Biome) streams — including files acquired from compromised or actively hostile systems. Hostile input is the expected case, not an edge case. Robustness against crafted records is a core design goal, and we take reports of crashes, hangs, or memory-safety issues seriously.

Security fixes are released against the latest published 0.1.x line.

Do not open a public GitHub issue for a security vulnerability.

Report privately, by either:

• GitHub Security Advisories — open a private advisory on the segb-forensic repository, or
• Email — albert@securityronin.com.

Please include:

• the affected version and target triple,
• a minimal reproducing SEGB file or byte buffer (a fuzz corpus entry is ideal),
• the observed behaviour (panic, hang, excessive allocation, mis-parse) and the expected behaviour.

We aim to acknowledge a report within a few business days and to coordinate disclosure once a fix is available.

segb-forensic is hardened against adversarial input by construction:

• #![forbid(unsafe_code)] across the whole workspace — no unsafe, anywhere.
• No panics on malicious input — every length and offset is validated against both the structure's declared size and the actual buffer; arithmetic is checked or saturating.
• Bounded reads — record framing, trailers, and protobuf varints are length- checked before use, so a crafted length field cannot drive an out-of-bounds read or an allocation bomb.
• Pure auditor — segb-forensic::audit is a side-effect-free function of already-decoded records: no I/O, no allocation surprises.

Continuous fuzzing with cargo-fuzz backs the hardening above. Five targets cover the code that consumes attacker-controlled bytes:

Each target's invariant is "must not panic." Any panic found by fuzzing is fixed and pinned as a regression test.

For how to run the targets yourself, see CONTRIBUTING.md.