Provide references for CVE-2015-6420.
Where can I find more information about CVE-2015-6420?
References are available at: http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html, https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05376917, http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151209-java-deserialization, http://www.securityfocus.com/bid/78872, https://www.tenable.com/security/research/tra-2017-23, https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722, https://www.kb.cert.org/vuls/id/581311, https://www.tenable.com/security/research/tra-2017-14, https://lists.apache.org/thread.html/r352e40ca9874d1beb4ad95403792adca7eb295e6bc3bd7b65fabcc21%40%3Ccommits.samza.apache.org%3E.