Security context

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

jruby/jruby-openssl
master @ 484a0c9
9
Fixes
2
CVEs
HIGH
Peak severity
50.0%
Coverage
Highlights
Cryptographic Issues: 2 prior fixes. Scrutinize any change in this area.
src/main/java/org/jruby/ext/openssl/Random.java: most-fixed (2 issues). Treat as high-risk during review.
4 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.

Improper Certificate Validation: Default configurations previously failed to enforce hostname verification during SSL/TLS handshakes, exposing applications to Man-in-the-Middle (MitM) attacks. This pattern is reflected in CVE-2025-46551 and CVE-2009-4123.
Insecure Randomness: Weak entropy mixing due to operator precedence bugs and fallbacks to weaker algorithms like SHA1PRNG can lead to predictable random number generation. Additionally, pseudo_bytes was historically implemented without a cryptographically secure generator.
Timing Attack: Non-constant-time byte array comparisons in secret key validation and PKCS7 digest verification can leak equality information through timing side-channels, allowing attackers to systematically brute-force expected signatures or keys.