Provide references for CVE-2017-9228.
Where can I find more information about CVE-2017-9228?
References are available at: https://github.com/kkos/oniguruma/commit/3b63d12038c8d8fc278e81c942fa9bec7c704c8b, https://access.redhat.com/errata/RHSA-2018:1296, https://github.com/kkos/oniguruma/issues/60.