Mistaken assumptions about the ordering of records in the answer section of a response containing CNAME or DNAME resource records could lead to a situation in which named would exit with an assertion failure when processing a response in which records occurred in an unusual order. Affects BIND 9.9.9-P6, 9.9.10b1->9.9.10rc1, 9.10.4-P6, 9.10.5b1->9.10.5rc1, 9.11.0-P3, 9.11.1b1->9.11.1rc1, and 9.9.9-S8.
https://www.debian.org/security/2017/dsa-3854
https://security.netapp.com/advisory/ntap-20180802-0002/
https://security.gentoo.org/glsa/201708-01
https://kb.isc.org/docs/aa-01466
https://access.redhat.com/errata/RHSA-2017:1583
https://access.redhat.com/errata/RHSA-2017:1582
https://access.redhat.com/errata/RHSA-2017:1105
https://access.redhat.com/errata/RHSA-2017:1095
http://www.securitytracker.com/id/1040195