Security context

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

kizzycode/asn1_der-rust
master @ 88f260a
4
Fixes
0
CVEs
HIGH
Peak severity
75.0%
Coverage
Highlights
Signature Bypass: 3 prior fixes. Scrutinize any change in this area.
src/der.rs: most-fixed (4 issues). 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.

Signature Bypass: Non-canonical DER length encodings with leading zero bytes allowed parsing of malformed payloads without rejection. In cryptographic contexts, this enables signature malleability where attackers can alter signature structures without invalidating the mathematical signature.
Information Disclosure: The 'DerObject::raw()' method historically returned slices containing trailing unparsed data instead of strict boundaries. This leak of raw underlying buffer data can expose sensitive information or pollute downstream cryptographic hashes.