Provide references for CVE-2015-9096.
Where can I find more information about CVE-2015-9096?
References are available at: https://www.debian.org/security/2017/dsa-3966, https://hackerone.com/reports/137631, https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html, https://github.com/rubysec/ruby-advisory-db/issues/215, https://github.com/ruby/ruby/commit/0827a7e52ba3d957a634b063bf5a391239b9ffee, http://www.mbsd.jp/Whitepaper/smtpi.pdf.