Security context

What an agent needs to avoid regressing past fixes and find the next vuln in this repo.

oconnor663/blake2_simd

              master @ 6a94ae2
            

Fixes

CVEs

MEDIUM

Peak severity

Highlights

Cryptographic Issues: 1 prior fix. Scrutinize any change in this area.

src/avx2.rs: most-fixed (1 issue). Treat as high-risk during review.

0 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.

Cryptographic Issues: Incorrect signed comparison in the counter overflow logic within AVX2 SIMD implementations could lead to incorrect hash states or security-relevant state corruption when processing very large inputs.

Cryptographic Issues: Parallel signed 64-bit comparison bugs in SSE4.1 SIMD execution paths present the same overflow-handling vulnerability on platforms lacking AVX2, risking incorrect message digest calculations.