This research exposes critical security vulnerabilities where Rust interfaces with other programming languages, potentially undermining Rust's safety guarantees.

• Rust's static safety guarantees can be compromised when interacting with foreign functions
• Current tools like Miri cannot detect bugs in foreign functions, creating a security blind spot
• The study identifies undefined behaviors that cross language boundaries
• These findings highlight a significant correctness gap in Rust-based applications

This research is crucial for security teams as it reveals how seemingly safe Rust code may contain exploitable vulnerabilities when interfacing with code written in other languages, potentially affecting mission-critical applications.

A Study of Undefined Behavior Across Foreign Function Boundaries in Rust Libraries