This patch was derived from ISC source differences between bind-9.10.3-P2 and bind-9.10.3-P3

diff -r f899dcaa07f7 CHANGES
--- a/CHANGES	Fri Jan 15 12:48:27 2016 +0000
+++ b/CHANGES	Fri Jan 15 13:12:34 2016 +0000
@@ -1,3 +1,8 @@
+	--- 9.6-ESV-R11-P5 released ---
+
+4285.	[security]	Specific APL data could trigger a INSIST.
+			(CVE-2015-8704) [RT #41396]
+
 	--- 9.6-ESV-R11-P4 released ---
 
 4260.	[security]	Insufficient testing when parsing a message allowed
diff -r f899dcaa07f7 lib/dns/rdata/in_1/apl_42.c
--- a/lib/dns/rdata/in_1/apl_42.c	Fri Jan 15 12:48:27 2016 +0000
+++ b/lib/dns/rdata/in_1/apl_42.c	Fri Jan 15 13:12:34 2016 +0000
@@ -116,7 +116,7 @@
 	isc_uint8_t len;
 	isc_boolean_t neg;
 	unsigned char buf[16];
-	char txt[sizeof(" !64000")];
+	char txt[sizeof(" !64000:")];
 	const char *sep = "";
 	int n;
 
@@ -140,7 +140,7 @@
 		isc_region_consume(&sr, 1);
 		INSIST(len <= sr.length);
 		n = snprintf(txt, sizeof(txt), "%s%s%u:", sep,
-			     neg ? "!": "", afi);
+			     neg ? "!" : "", afi);
 		INSIST(n < (int)sizeof(txt));
 		RETERR(str_totext(txt, target));
 		switch (afi) {
diff -r f899dcaa07f7 version
--- a/version	Fri Jan 15 12:48:27 2016 +0000
+++ b/version	Fri Jan 15 13:12:34 2016 +0000
@@ -10,4 +10,4 @@
 PATCHVER=
 RELEASETYPE=-ESV
 RELEASEVER=-R11
-EXTENSIONS=-P4
+EXTENSIONS=-P5