Security context

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

systerel/S2OPC

              master @ bad930a
            

115

Fixes

CVEs

CRITICAL

Peak severity

28.6%

Coverage

Highlights

Auth Bypass: 23 prior fixes. Scrutinize any change in this area.

src/Common/crypto/lib_dep/cyclone/pki_cyclone.c: most-fixed (6 issues). Treat as high-risk during review.

88 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.

Authentication Bypass: Multiple fixes address fail-open authentication: missing signature verification, uninitialized validity flags, nonce length/consistency gaps, and missing token policy enforcement. These allow attackers to activate sessions without valid credentials.

Certificate Validation Bypass: Numerous fixes address incomplete certificate validation: missing expiration checks, CRL signature/issuer validation, key usage enforcement, trust list comparison length, and role-based validation. Attackers can present invalid or weak certificates to bypass trust.

Memory Corruption: Fixes address buffer overflows, use-after-free, double-free, and uninitialized memory in certificate handling, configuration, and message processing. These can lead to remote code execution or crashes.