Affected versions of this crate unconditionally implement Sync for SyncRef<T>. This definition allows data races if &T is accessible through &SyncRef.
SyncRef<T> derives Clone and Debug, and the default implementations of those traits access &T by invoking T::clone() & T::fmt(). It is possible to create data races & undefined behavior by concurrently invoking SyncRef<T>::clone() or SyncRef<T>::fmt() from multiple threads with T: !Sync.
github.com/purpleposeidon/v9
github.com/purpleposeidon/v9/commit/18847c50e5d36561cc91c996c3539ddb1eacf6c7
github.com/purpleposeidon/v9/issues/1
nvd.nist.gov/vuln/detail/CVE-2020-36447
raw.githubusercontent.com/rustsec/advisory-db/main/crates/v9/RUSTSEC-2020-0127.md
rustsec.org/advisories/RUSTSEC-2020-0127.html