In ISC BIND before 9.10.3-P3, a buffer size check used to guard against overflow could cause named to exit with an INSIST failure In apl_42.c (CVE-2015-8704).
In ISC BIND before 9.10.3-P3, errors can occur when OPT pseudo-RR data or ECS options are formatted to text. In 9.10.3 through 9.10.3-P2, the issue may result in a REQUIRE assertion failure in buffer.c, causing a crash. This can be avoided in named by disabling debug logging (CVE-2015-8705).