buffer.c in named in ISC BIND 9.10.x before 9.10.3-P3, when debug logging is enabled, allows remote attackers to cause a denial of service (REQUIRE assertion failure and daemon exit, or daemon crash) or possibly have unspecified other impact via (1) OPT data or (2) an ECS option.
https://security.gentoo.org/glsa/201610-07
https://kb.isc.org/article/AA-01380
https://kb.isc.org/article/AA-01336
http://www.securitytracker.com/id/1034740
http://www.securityfocus.com/bid/81314
http://www.oracle.com/technetwork/topics/security/bulletinoct2016-3090566.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175977.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176564.html