This crate is a joke and should never be used.
cve-rs provides demonstrations of common memory vulnerabilities (such as buffer overflows and segfaults) implemented completely within safe Rust.
Internally, this crate does not use unsafe code, it instead exploits a soundness bug in rustc: https://github.com/rust-lang/rust/issues/25860
{
"license": "CC0-1.0"
}