Security context

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

alexdalitz/dnsruby

              master @ 74f5c4e
            

Fixes

CVEs

HIGH

Peak severity

40.0%

Coverage

Highlights

Auth Bypass: 11 prior fixes. Scrutinize any change in this area.

lib/Dnsruby/dnssec.rb: most-fixed (4 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.

Auth Bypass: The DNSSEC single verifier has repeatedly suffered from validation bypasses including incorrect loop termination, string canonicalization errors, and the extraction of untrusted nameservers from responses instead of querying trusted recursors.

Auth Bypass: Incorrect error handling during signature verification and chain traversal has repeatedly led to validation failures being treated as INSECURE/UNCHECKED states or returning boolean false instead of raising a VerifyError.

Cryptographic Signature Verification Bypass: Unsigned RRSets injected into the additional section of a DNS response were processed without verification, bypassing DNSSEC integrity checks on key resources.