Security context

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

marten-seemann/qtls-go1-17
master @ 338f80f
5
Fixes
0
CVEs
MEDIUM
Peak severity
Highlights
Auth Bypass: 3 prior fixes. Scrutinize any change in this area.
crypto/tls: most-fixed (2 issues). 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.

Auth Bypass: Session tickets could be reused or accepted without validating that the negotiated ALPN matches the original session state, allowing clients to bypass application-level protocol restrictions.
Auth Bypass: Failure to immediately invalidate or delete session tickets from the client cache upon initiating a 0-RTT resumption exposes the client to replay attacks.
Protocol Violation: Improper validation of early data flags inside session tickets allows unauthorized 0-RTT processing when the ticket's capability policy forbids it.