Security context

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

apple/swift-crypto
main @ 1b6b2e2
4
Fixes
1
CVEs
HIGH
Peak severity
50.0%
Coverage
Highlights
Buffer Overflow: 1 prior fix. Scrutinize any change in this area.
Sources/Crypto/ASN1/ASN1.swift: most-fixed (1 issue). Treat as high-risk during review.
3 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.

Memory Safety: Inadequate input length validation before calling underlying C BoringSSL decapsulation functions allowed out-of-bounds memory access when processing short encapsulated keys. This can lead to remote crashes or memory disclosure.
Buffer Overflow: A redundant loop iteration during byte-to-hex-string translation using unsafe mutable pointers created a potential out-of-bounds memory write during allocation operations.
Key Management Errors: A bitwise shift serialization bug corrupted length octets for content sizes of 128 bytes or larger, impacting the integrity of ASN.1 encoded structures such as private keys and certificates.