Bouncy Castle in Android before 5.1.1 LMY49F and 6.0 before 2016-01-01 allows attackers to obtain sensitive information via a crafted application, aka internal bug 24106146.
https://usn.ubuntu.com/3727-1/
https://access.redhat.com/errata/RHSA-2018:2927
https://access.redhat.com/errata/RHSA-2017:2811
https://access.redhat.com/errata/RHSA-2017:2810
https://access.redhat.com/errata/RHSA-2017:2809
https://access.redhat.com/errata/RHSA-2017:2808
https://access.redhat.com/errata/RHSA-2017:1832
http://www.securitytracker.com/id/1034592
http://www.securityfocus.com/bid/79865