Provide references for CVE-2020-15254.
Where can I find more information about CVE-2020-15254?
References are available at: https://github.com/crossbeam-rs/crossbeam/security/advisories/GHSA-v5m7-53cv-f3hx, https://github.com/crossbeam-rs/crossbeam/issues/539, https://github.com/crossbeam-rs/crossbeam/pull/533, https://github.com/RustSec/advisory-db/pull/425.