components/bind/patches/003-RT40212.patch
author William.D.Johnston <William.D.Johnston@oracle.com>
Wed, 02 Sep 2015 14:24:30 -0700
changeset 4836 2963a732ee80
permissions -rw-r--r--
21674580 Upgrade Solaris to BIND 9.6-ESV-R11-P3 21674511 problem in SERVICE/DNS-SERVER

This patch was obtained from ISC for 9.6-ESV-R11-P3.

--- old/CHANGES	Mon Aug 24 00:18:22 2015
+++ new/CHANGES	Mon Aug 24 00:18:22 2015
@@ -1,3 +1,10 @@
+	--- 9.6-ESV-R11-P3 released ---
+
+4168.	[security]	A buffer accounting error could trigger an
+			assertion failure when parsing certain malformed
+			DNSSEC keys. (CVE-2015-5722)
+			[RT #40212]
+
 	--- 9.6-ESV-R11-P2 released ---
 
 4165.	[security]	A failure to reset a value to NULL in tkey.c could
--- old/lib/dns/api	Mon Aug 24 00:18:24 2015
+++ new/lib/dns/api	Mon Aug 24 00:18:23 2015
@@ -5,5 +5,5 @@
 # 9.9: 90-109
 # 9.9-sub: 130-139
 LIBINTERFACE = 114
-LIBREVISION = 1
+LIBREVISION = 2
 LIBAGE = 1
--- old/lib/dns/hmac_link.c	Mon Aug 24 00:18:24 2015
+++ new/lib/dns/hmac_link.c	Mon Aug 24 00:18:23 2015
@@ -1,5 +1,5 @@
 /*
- * Portions Copyright (C) 2004-2008, 2012-2014  Internet Systems Consortium, Inc. ("ISC")
+ * Portions Copyright (C) 2004-2014  Internet Systems Consortium, Inc. ("ISC")
  * Portions Copyright (C) 1999-2002  Internet Software Consortium.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
@@ -51,14 +51,10 @@
 #include "dst_internal.h"
 #include "dst_parse.h"
 
-#define HMAC_LEN	64
-#define HMAC_IPAD	0x36
-#define HMAC_OPAD	0x5c
-
 static isc_result_t hmacmd5_fromdns(dst_key_t *key, isc_buffer_t *data);
 
 struct dst_hmacmd5_key {
-	unsigned char key[HMAC_LEN];
+	unsigned char key[ISC_MD5_BLOCK_LENGTH];
 };
 
 static isc_result_t
@@ -80,7 +76,7 @@
 	hmacmd5ctx = isc_mem_get(dctx->mctx, sizeof(isc_hmacmd5_t));
 	if (hmacmd5ctx == NULL)
 		return (ISC_R_NOMEMORY);
-	isc_hmacmd5_init(hmacmd5ctx, hkey->key, HMAC_LEN);
+	isc_hmacmd5_init(hmacmd5ctx, hkey->key, ISC_MD5_BLOCK_LENGTH);
 	dctx->ctxdata.hmacmd5ctx = hmacmd5ctx;
 	return (ISC_R_SUCCESS);
 }
@@ -143,7 +139,7 @@
 	else if (hkey1 == NULL || hkey2 == NULL)
 		return (ISC_FALSE);
 
-	if (isc_safe_memcmp(hkey1->key, hkey2->key, HMAC_LEN))
+	if (isc_safe_memcmp(hkey1->key, hkey2->key, ISC_MD5_BLOCK_LENGTH))
 		return (ISC_TRUE);
 	else
 		return (ISC_FALSE);
@@ -153,16 +149,16 @@
 hmacmd5_generate(dst_key_t *key, int pseudorandom_ok) {
 	isc_buffer_t b;
 	isc_result_t ret;
-	int bytes;
-	unsigned char data[HMAC_LEN];
+	unsigned int bytes;
+	unsigned char data[ISC_MD5_BLOCK_LENGTH];
 
 	bytes = (key->key_size + 7) / 8;
-	if (bytes > HMAC_LEN) {
-		bytes = HMAC_LEN;
-		key->key_size = HMAC_LEN * 8;
+	if (bytes > ISC_MD5_BLOCK_LENGTH) {
+		bytes = ISC_MD5_BLOCK_LENGTH;
+		key->key_size = ISC_MD5_BLOCK_LENGTH * 8;
 	}
 
-	memset(data, 0, HMAC_LEN);
+	memset(data, 0, ISC_MD5_BLOCK_LENGTH);
 	ret = dst__entropy_getdata(data, bytes, ISC_TF(pseudorandom_ok != 0));
 
 	if (ret != ISC_R_SUCCESS)
@@ -171,7 +167,7 @@
 	isc_buffer_init(&b, data, bytes);
 	isc_buffer_add(&b, bytes);
 	ret = hmacmd5_fromdns(key, &b);
-	memset(data, 0, HMAC_LEN);
+	memset(data, 0, ISC_MD5_BLOCK_LENGTH);
 
 	return (ret);
 }
@@ -185,6 +181,7 @@
 static void
 hmacmd5_destroy(dst_key_t *key) {
 	dst_hmacmd5_key_t *hkey = key->keydata.hmacmd5;
+
 	memset(hkey, 0, sizeof(dst_hmacmd5_key_t));
 	isc_mem_put(key->mctx, hkey, sizeof(dst_hmacmd5_key_t));
 	key->keydata.hmacmd5 = NULL;
@@ -224,7 +221,7 @@
 
 	memset(hkey->key, 0, sizeof(hkey->key));
 
-	if (r.length > HMAC_LEN) {
+	if (r.length > ISC_MD5_BLOCK_LENGTH) {
 		isc_md5_init(&md5ctx);
 		isc_md5_update(&md5ctx, r.base, r.length);
 		isc_md5_final(&md5ctx, hkey->key);
@@ -237,6 +234,8 @@
 	key->key_size = keylen * 8;
 	key->keydata.hmacmd5 = hkey;
 
+	isc_buffer_forward(data, r.length);
+
 	return (ISC_R_SUCCESS);
 }
 
@@ -276,7 +275,8 @@
 	unsigned int i;
 
 	/* read private key file */
-	result = dst__privstruct_parse(key, DST_ALG_HMACMD5, lexer, mctx, &priv);
+	result = dst__privstruct_parse(key, DST_ALG_HMACMD5, lexer, mctx,
+				       &priv);
 	if (result != ISC_R_SUCCESS)
 		return (result);
 
@@ -337,7 +337,7 @@
 static isc_result_t hmacsha1_fromdns(dst_key_t *key, isc_buffer_t *data);
 
 struct dst_hmacsha1_key {
-	unsigned char key[ISC_SHA1_DIGESTLENGTH];
+	unsigned char key[ISC_SHA1_BLOCK_LENGTH];
 };
 
 static isc_result_t
@@ -348,7 +348,7 @@
 	hmacsha1ctx = isc_mem_get(dctx->mctx, sizeof(isc_hmacsha1_t));
 	if (hmacsha1ctx == NULL)
 		return (ISC_R_NOMEMORY);
-	isc_hmacsha1_init(hmacsha1ctx, hkey->key, ISC_SHA1_DIGESTLENGTH);
+	isc_hmacsha1_init(hmacsha1ctx, hkey->key, ISC_SHA1_BLOCK_LENGTH);
 	dctx->ctxdata.hmacsha1ctx = hmacsha1ctx;
 	return (ISC_R_SUCCESS);
 }
@@ -411,7 +411,7 @@
 	else if (hkey1 == NULL || hkey2 == NULL)
 		return (ISC_FALSE);
 
-	if (isc_safe_memcmp(hkey1->key, hkey2->key, ISC_SHA1_DIGESTLENGTH))
+	if (isc_safe_memcmp(hkey1->key, hkey2->key, ISC_SHA1_BLOCK_LENGTH))
 		return (ISC_TRUE);
 	else
 		return (ISC_FALSE);
@@ -421,16 +421,16 @@
 hmacsha1_generate(dst_key_t *key, int pseudorandom_ok) {
 	isc_buffer_t b;
 	isc_result_t ret;
-	int bytes;
-	unsigned char data[HMAC_LEN];
+	unsigned int bytes;
+	unsigned char data[ISC_SHA1_BLOCK_LENGTH];
 
 	bytes = (key->key_size + 7) / 8;
-	if (bytes > HMAC_LEN) {
-		bytes = HMAC_LEN;
-		key->key_size = HMAC_LEN * 8;
+	if (bytes > ISC_SHA1_BLOCK_LENGTH) {
+		bytes = ISC_SHA1_BLOCK_LENGTH;
+		key->key_size = ISC_SHA1_BLOCK_LENGTH * 8;
 	}
 
-	memset(data, 0, HMAC_LEN);
+	memset(data, 0, ISC_SHA1_BLOCK_LENGTH);
 	ret = dst__entropy_getdata(data, bytes, ISC_TF(pseudorandom_ok != 0));
 
 	if (ret != ISC_R_SUCCESS)
@@ -439,7 +439,7 @@
 	isc_buffer_init(&b, data, bytes);
 	isc_buffer_add(&b, bytes);
 	ret = hmacsha1_fromdns(key, &b);
-	memset(data, 0, ISC_SHA1_DIGESTLENGTH);
+	memset(data, 0, ISC_SHA1_BLOCK_LENGTH);
 
 	return (ret);
 }
@@ -453,6 +453,7 @@
 static void
 hmacsha1_destroy(dst_key_t *key) {
 	dst_hmacsha1_key_t *hkey = key->keydata.hmacsha1;
+
 	memset(hkey, 0, sizeof(dst_hmacsha1_key_t));
 	isc_mem_put(key->mctx, hkey, sizeof(dst_hmacsha1_key_t));
 	key->keydata.hmacsha1 = NULL;
@@ -492,7 +493,7 @@
 
 	memset(hkey->key, 0, sizeof(hkey->key));
 
-	if (r.length > ISC_SHA1_DIGESTLENGTH) {
+	if (r.length > ISC_SHA1_BLOCK_LENGTH) {
 		isc_sha1_init(&sha1ctx);
 		isc_sha1_update(&sha1ctx, r.base, r.length);
 		isc_sha1_final(&sha1ctx, hkey->key);
@@ -505,6 +506,8 @@
 	key->key_size = keylen * 8;
 	key->keydata.hmacsha1 = hkey;
 
+	isc_buffer_forward(data, r.length);
+
 	return (ISC_R_SUCCESS);
 }
 
@@ -606,7 +609,7 @@
 static isc_result_t hmacsha224_fromdns(dst_key_t *key, isc_buffer_t *data);
 
 struct dst_hmacsha224_key {
-	unsigned char key[ISC_SHA224_DIGESTLENGTH];
+	unsigned char key[ISC_SHA224_BLOCK_LENGTH];
 };
 
 static isc_result_t
@@ -617,7 +620,7 @@
 	hmacsha224ctx = isc_mem_get(dctx->mctx, sizeof(isc_hmacsha224_t));
 	if (hmacsha224ctx == NULL)
 		return (ISC_R_NOMEMORY);
-	isc_hmacsha224_init(hmacsha224ctx, hkey->key, ISC_SHA224_DIGESTLENGTH);
+	isc_hmacsha224_init(hmacsha224ctx, hkey->key, ISC_SHA224_BLOCK_LENGTH);
 	dctx->ctxdata.hmacsha224ctx = hmacsha224ctx;
 	return (ISC_R_SUCCESS);
 }
@@ -680,7 +683,7 @@
 	else if (hkey1 == NULL || hkey2 == NULL)
 		return (ISC_FALSE);
 
-	if (isc_safe_memcmp(hkey1->key, hkey2->key, ISC_SHA224_DIGESTLENGTH))
+	if (isc_safe_memcmp(hkey1->key, hkey2->key, ISC_SHA224_BLOCK_LENGTH))
 		return (ISC_TRUE);
 	else
 		return (ISC_FALSE);
@@ -690,16 +693,16 @@
 hmacsha224_generate(dst_key_t *key, int pseudorandom_ok) {
 	isc_buffer_t b;
 	isc_result_t ret;
-	int bytes;
-	unsigned char data[HMAC_LEN];
+	unsigned int bytes;
+	unsigned char data[ISC_SHA224_BLOCK_LENGTH];
 
 	bytes = (key->key_size + 7) / 8;
-	if (bytes > HMAC_LEN) {
-		bytes = HMAC_LEN;
-		key->key_size = HMAC_LEN * 8;
+	if (bytes > ISC_SHA224_BLOCK_LENGTH) {
+		bytes = ISC_SHA224_BLOCK_LENGTH;
+		key->key_size = ISC_SHA224_BLOCK_LENGTH * 8;
 	}
 
-	memset(data, 0, HMAC_LEN);
+	memset(data, 0, ISC_SHA224_BLOCK_LENGTH);
 	ret = dst__entropy_getdata(data, bytes, ISC_TF(pseudorandom_ok != 0));
 
 	if (ret != ISC_R_SUCCESS)
@@ -708,7 +711,7 @@
 	isc_buffer_init(&b, data, bytes);
 	isc_buffer_add(&b, bytes);
 	ret = hmacsha224_fromdns(key, &b);
-	memset(data, 0, ISC_SHA224_DIGESTLENGTH);
+	memset(data, 0, ISC_SHA224_BLOCK_LENGTH);
 
 	return (ret);
 }
@@ -722,6 +725,7 @@
 static void
 hmacsha224_destroy(dst_key_t *key) {
 	dst_hmacsha224_key_t *hkey = key->keydata.hmacsha224;
+
 	memset(hkey, 0, sizeof(dst_hmacsha224_key_t));
 	isc_mem_put(key->mctx, hkey, sizeof(dst_hmacsha224_key_t));
 	key->keydata.hmacsha224 = NULL;
@@ -761,7 +765,7 @@
 
 	memset(hkey->key, 0, sizeof(hkey->key));
 
-	if (r.length > ISC_SHA224_DIGESTLENGTH) {
+	if (r.length > ISC_SHA224_BLOCK_LENGTH) {
 		isc_sha224_init(&sha224ctx);
 		isc_sha224_update(&sha224ctx, r.base, r.length);
 		isc_sha224_final(hkey->key, &sha224ctx);
@@ -774,6 +778,8 @@
 	key->key_size = keylen * 8;
 	key->keydata.hmacsha224 = hkey;
 
+	isc_buffer_forward(data, r.length);
+
 	return (ISC_R_SUCCESS);
 }
 
@@ -875,7 +881,7 @@
 static isc_result_t hmacsha256_fromdns(dst_key_t *key, isc_buffer_t *data);
 
 struct dst_hmacsha256_key {
-	unsigned char key[ISC_SHA256_DIGESTLENGTH];
+	unsigned char key[ISC_SHA256_BLOCK_LENGTH];
 };
 
 static isc_result_t
@@ -886,7 +892,7 @@
 	hmacsha256ctx = isc_mem_get(dctx->mctx, sizeof(isc_hmacsha256_t));
 	if (hmacsha256ctx == NULL)
 		return (ISC_R_NOMEMORY);
-	isc_hmacsha256_init(hmacsha256ctx, hkey->key, ISC_SHA256_DIGESTLENGTH);
+	isc_hmacsha256_init(hmacsha256ctx, hkey->key, ISC_SHA256_BLOCK_LENGTH);
 	dctx->ctxdata.hmacsha256ctx = hmacsha256ctx;
 	return (ISC_R_SUCCESS);
 }
@@ -949,7 +955,7 @@
 	else if (hkey1 == NULL || hkey2 == NULL)
 		return (ISC_FALSE);
 
-	if (isc_safe_memcmp(hkey1->key, hkey2->key, ISC_SHA256_DIGESTLENGTH))
+	if (isc_safe_memcmp(hkey1->key, hkey2->key, ISC_SHA256_BLOCK_LENGTH))
 		return (ISC_TRUE);
 	else
 		return (ISC_FALSE);
@@ -959,16 +965,16 @@
 hmacsha256_generate(dst_key_t *key, int pseudorandom_ok) {
 	isc_buffer_t b;
 	isc_result_t ret;
-	int bytes;
-	unsigned char data[HMAC_LEN];
+	unsigned int bytes;
+	unsigned char data[ISC_SHA256_BLOCK_LENGTH];
 
 	bytes = (key->key_size + 7) / 8;
-	if (bytes > HMAC_LEN) {
-		bytes = HMAC_LEN;
-		key->key_size = HMAC_LEN * 8;
+	if (bytes > ISC_SHA256_BLOCK_LENGTH) {
+		bytes = ISC_SHA256_BLOCK_LENGTH;
+		key->key_size = ISC_SHA256_BLOCK_LENGTH * 8;
 	}
 
-	memset(data, 0, HMAC_LEN);
+	memset(data, 0, ISC_SHA256_BLOCK_LENGTH);
 	ret = dst__entropy_getdata(data, bytes, ISC_TF(pseudorandom_ok != 0));
 
 	if (ret != ISC_R_SUCCESS)
@@ -977,7 +983,7 @@
 	isc_buffer_init(&b, data, bytes);
 	isc_buffer_add(&b, bytes);
 	ret = hmacsha256_fromdns(key, &b);
-	memset(data, 0, ISC_SHA256_DIGESTLENGTH);
+	memset(data, 0, ISC_SHA256_BLOCK_LENGTH);
 
 	return (ret);
 }
@@ -991,6 +997,7 @@
 static void
 hmacsha256_destroy(dst_key_t *key) {
 	dst_hmacsha256_key_t *hkey = key->keydata.hmacsha256;
+
 	memset(hkey, 0, sizeof(dst_hmacsha256_key_t));
 	isc_mem_put(key->mctx, hkey, sizeof(dst_hmacsha256_key_t));
 	key->keydata.hmacsha256 = NULL;
@@ -1030,7 +1037,7 @@
 
 	memset(hkey->key, 0, sizeof(hkey->key));
 
-	if (r.length > ISC_SHA256_DIGESTLENGTH) {
+	if (r.length > ISC_SHA256_BLOCK_LENGTH) {
 		isc_sha256_init(&sha256ctx);
 		isc_sha256_update(&sha256ctx, r.base, r.length);
 		isc_sha256_final(hkey->key, &sha256ctx);
@@ -1043,6 +1050,8 @@
 	key->key_size = keylen * 8;
 	key->keydata.hmacsha256 = hkey;
 
+	isc_buffer_forward(data, r.length);
+
 	return (ISC_R_SUCCESS);
 }
 
@@ -1144,7 +1153,7 @@
 static isc_result_t hmacsha384_fromdns(dst_key_t *key, isc_buffer_t *data);
 
 struct dst_hmacsha384_key {
-	unsigned char key[ISC_SHA384_DIGESTLENGTH];
+	unsigned char key[ISC_SHA384_BLOCK_LENGTH];
 };
 
 static isc_result_t
@@ -1155,7 +1164,7 @@
 	hmacsha384ctx = isc_mem_get(dctx->mctx, sizeof(isc_hmacsha384_t));
 	if (hmacsha384ctx == NULL)
 		return (ISC_R_NOMEMORY);
-	isc_hmacsha384_init(hmacsha384ctx, hkey->key, ISC_SHA384_DIGESTLENGTH);
+	isc_hmacsha384_init(hmacsha384ctx, hkey->key, ISC_SHA384_BLOCK_LENGTH);
 	dctx->ctxdata.hmacsha384ctx = hmacsha384ctx;
 	return (ISC_R_SUCCESS);
 }
@@ -1218,7 +1227,7 @@
 	else if (hkey1 == NULL || hkey2 == NULL)
 		return (ISC_FALSE);
 
-	if (isc_safe_memcmp(hkey1->key, hkey2->key, ISC_SHA384_DIGESTLENGTH))
+	if (isc_safe_memcmp(hkey1->key, hkey2->key, ISC_SHA384_BLOCK_LENGTH))
 		return (ISC_TRUE);
 	else
 		return (ISC_FALSE);
@@ -1228,16 +1237,16 @@
 hmacsha384_generate(dst_key_t *key, int pseudorandom_ok) {
 	isc_buffer_t b;
 	isc_result_t ret;
-	int bytes;
-	unsigned char data[HMAC_LEN];
+	unsigned int bytes;
+	unsigned char data[ISC_SHA384_BLOCK_LENGTH];
 
 	bytes = (key->key_size + 7) / 8;
-	if (bytes > HMAC_LEN) {
-		bytes = HMAC_LEN;
-		key->key_size = HMAC_LEN * 8;
+	if (bytes > ISC_SHA384_BLOCK_LENGTH) {
+		bytes = ISC_SHA384_BLOCK_LENGTH;
+		key->key_size = ISC_SHA384_BLOCK_LENGTH * 8;
 	}
 
-	memset(data, 0, HMAC_LEN);
+	memset(data, 0, ISC_SHA384_BLOCK_LENGTH);
 	ret = dst__entropy_getdata(data, bytes, ISC_TF(pseudorandom_ok != 0));
 
 	if (ret != ISC_R_SUCCESS)
@@ -1246,7 +1255,7 @@
 	isc_buffer_init(&b, data, bytes);
 	isc_buffer_add(&b, bytes);
 	ret = hmacsha384_fromdns(key, &b);
-	memset(data, 0, ISC_SHA384_DIGESTLENGTH);
+	memset(data, 0, ISC_SHA384_BLOCK_LENGTH);
 
 	return (ret);
 }
@@ -1260,6 +1269,7 @@
 static void
 hmacsha384_destroy(dst_key_t *key) {
 	dst_hmacsha384_key_t *hkey = key->keydata.hmacsha384;
+
 	memset(hkey, 0, sizeof(dst_hmacsha384_key_t));
 	isc_mem_put(key->mctx, hkey, sizeof(dst_hmacsha384_key_t));
 	key->keydata.hmacsha384 = NULL;
@@ -1299,7 +1309,7 @@
 
 	memset(hkey->key, 0, sizeof(hkey->key));
 
-	if (r.length > ISC_SHA384_DIGESTLENGTH) {
+	if (r.length > ISC_SHA384_BLOCK_LENGTH) {
 		isc_sha384_init(&sha384ctx);
 		isc_sha384_update(&sha384ctx, r.base, r.length);
 		isc_sha384_final(hkey->key, &sha384ctx);
@@ -1312,6 +1322,8 @@
 	key->key_size = keylen * 8;
 	key->keydata.hmacsha384 = hkey;
 
+	isc_buffer_forward(data, r.length);
+
 	return (ISC_R_SUCCESS);
 }
 
@@ -1413,7 +1425,7 @@
 static isc_result_t hmacsha512_fromdns(dst_key_t *key, isc_buffer_t *data);
 
 struct dst_hmacsha512_key {
-	unsigned char key[ISC_SHA512_DIGESTLENGTH];
+	unsigned char key[ISC_SHA512_BLOCK_LENGTH];
 };
 
 static isc_result_t
@@ -1424,7 +1436,7 @@
 	hmacsha512ctx = isc_mem_get(dctx->mctx, sizeof(isc_hmacsha512_t));
 	if (hmacsha512ctx == NULL)
 		return (ISC_R_NOMEMORY);
-	isc_hmacsha512_init(hmacsha512ctx, hkey->key, ISC_SHA512_DIGESTLENGTH);
+	isc_hmacsha512_init(hmacsha512ctx, hkey->key, ISC_SHA512_BLOCK_LENGTH);
 	dctx->ctxdata.hmacsha512ctx = hmacsha512ctx;
 	return (ISC_R_SUCCESS);
 }
@@ -1487,7 +1499,7 @@
 	else if (hkey1 == NULL || hkey2 == NULL)
 		return (ISC_FALSE);
 
-	if (isc_safe_memcmp(hkey1->key, hkey2->key, ISC_SHA512_DIGESTLENGTH))
+	if (isc_safe_memcmp(hkey1->key, hkey2->key, ISC_SHA512_BLOCK_LENGTH))
 		return (ISC_TRUE);
 	else
 		return (ISC_FALSE);
@@ -1497,16 +1509,16 @@
 hmacsha512_generate(dst_key_t *key, int pseudorandom_ok) {
 	isc_buffer_t b;
 	isc_result_t ret;
-	int bytes;
-	unsigned char data[HMAC_LEN];
+	unsigned int bytes;
+	unsigned char data[ISC_SHA512_BLOCK_LENGTH];
 
 	bytes = (key->key_size + 7) / 8;
-	if (bytes > HMAC_LEN) {
-		bytes = HMAC_LEN;
-		key->key_size = HMAC_LEN * 8;
+	if (bytes > ISC_SHA512_BLOCK_LENGTH) {
+		bytes = ISC_SHA512_BLOCK_LENGTH;
+		key->key_size = ISC_SHA512_BLOCK_LENGTH * 8;
 	}
 
-	memset(data, 0, HMAC_LEN);
+	memset(data, 0, ISC_SHA512_BLOCK_LENGTH);
 	ret = dst__entropy_getdata(data, bytes, ISC_TF(pseudorandom_ok != 0));
 
 	if (ret != ISC_R_SUCCESS)
@@ -1515,7 +1527,7 @@
 	isc_buffer_init(&b, data, bytes);
 	isc_buffer_add(&b, bytes);
 	ret = hmacsha512_fromdns(key, &b);
-	memset(data, 0, ISC_SHA512_DIGESTLENGTH);
+	memset(data, 0, ISC_SHA512_BLOCK_LENGTH);
 
 	return (ret);
 }
@@ -1529,6 +1541,7 @@
 static void
 hmacsha512_destroy(dst_key_t *key) {
 	dst_hmacsha512_key_t *hkey = key->keydata.hmacsha512;
+
 	memset(hkey, 0, sizeof(dst_hmacsha512_key_t));
 	isc_mem_put(key->mctx, hkey, sizeof(dst_hmacsha512_key_t));
 	key->keydata.hmacsha512 = NULL;
@@ -1568,7 +1581,7 @@
 
 	memset(hkey->key, 0, sizeof(hkey->key));
 
-	if (r.length > ISC_SHA512_DIGESTLENGTH) {
+	if (r.length > ISC_SHA512_BLOCK_LENGTH) {
 		isc_sha512_init(&sha512ctx);
 		isc_sha512_update(&sha512ctx, r.base, r.length);
 		isc_sha512_final(hkey->key, &sha512ctx);
@@ -1581,6 +1594,8 @@
 	key->key_size = keylen * 8;
 	key->keydata.hmacsha512 = hkey;
 
+	isc_buffer_forward(data, r.length);
+
 	return (ISC_R_SUCCESS);
 }
 
--- old/lib/dns/include/dst/dst.h	Mon Aug 24 00:18:24 2015
+++ new/lib/dns/include/dst/dst.h	Mon Aug 24 00:18:23 2015
@@ -65,6 +65,7 @@
 #define DST_ALG_HMACSHA256	163	/* XXXMPA */
 #define DST_ALG_HMACSHA384	164	/* XXXMPA */
 #define DST_ALG_HMACSHA512	165	/* XXXMPA */
+#define DST_ALG_INDIRECT	252
 #define DST_ALG_PRIVATE		254
 #define DST_ALG_EXPAND		255
 #define DST_MAX_ALGS		255
--- old/lib/dns/ncache.c	Mon Aug 24 00:18:24 2015
+++ new/lib/dns/ncache.c	Mon Aug 24 00:18:23 2015
@@ -35,7 +35,7 @@
 #define DNS_NCACHE_RDATA 20U
 
 /*
- * The format of an ncache rdata is a sequence of one or more records of
+ * The format of an ncache rdata is a sequence of zero or more records of
  * the following format:
  *
  *	owner name
@@ -665,13 +665,11 @@
 		dns_name_fromregion(&tname, &remaining);
 		INSIST(remaining.length >= tname.length);
 		isc_buffer_forward(&source, tname.length);
-		remaining.length -= tname.length;
-		remaining.base += tname.length;
+		isc_region_consume(&remaining, tname.length);
 
 		INSIST(remaining.length >= 2);
 		type = isc_buffer_getuint16(&source);
-		remaining.length -= 2;
-		remaining.base += 2;
+		isc_region_consume(&remaining, 2);
 
 		if (type != dns_rdatatype_rrsig ||
 		    !dns_name_equal(&tname, name)) {
@@ -683,8 +681,7 @@
 		INSIST(remaining.length >= 1);
 		trust = isc_buffer_getuint8(&source);
 		INSIST(trust <= dns_trust_ultimate);
-		remaining.length -= 1;
-		remaining.base += 1;
+		isc_region_consume(&remaining, 1);
 
 		raw = remaining.base;
 		count = raw[0] * 256 + raw[1];
--- old/lib/dns/openssldh_link.c	Mon Aug 24 00:18:24 2015
+++ new/lib/dns/openssldh_link.c	Mon Aug 24 00:18:23 2015
@@ -1,5 +1,5 @@
 /*
- * Portions Copyright (C) 2004-2008, 2012  Internet Systems Consortium, Inc. ("ISC")
+ * Portions Copyright (C) 2004-2009, 2011-2014  Internet Systems Consortium, Inc. ("ISC")
  * Portions Copyright (C) 1999-2002  Internet Software Consortium.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
@@ -93,7 +93,7 @@
 	if (r.length < len)
 		return (ISC_R_NOSPACE);
 	ret = DH_compute_key(r.base, dhpub->pub_key, dhpriv);
-	if (ret == 0)
+	if (ret <= 0)
 		return (dst__openssl_toresult2("DH_compute_key",
 					       DST_R_COMPUTESECRETFAILURE));
 	isc_buffer_add(secret, len);
@@ -236,8 +236,10 @@
 
 static void
 uint16_toregion(isc_uint16_t val, isc_region_t *region) {
-	*region->base++ = (val & 0xff00) >> 8;
-	*region->base++ = (val & 0x00ff);
+	*region->base = (val & 0xff00) >> 8;
+	isc_region_consume(region, 1);
+	*region->base = (val & 0x00ff);
+	isc_region_consume(region, 1);
 }
 
 static isc_uint16_t
@@ -248,7 +250,8 @@
 	val = ((unsigned int)(cp[0])) << 8;
 	val |= ((unsigned int)(cp[1]));
 
-	region->base += 2;
+	isc_region_consume(region, 2);
+
 	return (val);
 }
 
@@ -289,16 +292,16 @@
 	}
 	else
 		BN_bn2bin(dh->p, r.base);
-	r.base += plen;
+	isc_region_consume(&r, plen);
 
 	uint16_toregion(glen, &r);
 	if (glen > 0)
 		BN_bn2bin(dh->g, r.base);
-	r.base += glen;
+	isc_region_consume(&r, glen);
 
 	uint16_toregion(publen, &r);
 	BN_bn2bin(dh->pub_key, r.base);
-	r.base += publen;
+	isc_region_consume(&r, publen);
 
 	isc_buffer_add(data, dnslen);
 
@@ -339,10 +342,12 @@
 		return (DST_R_INVALIDPUBLICKEY);
 	}
 	if (plen == 1 || plen == 2) {
-		if (plen == 1)
-			special = *r.base++;
-		else
+		if (plen == 1) {
+			special = *r.base;
+			isc_region_consume(&r, 1);
+		} else {
 			special = uint16_fromregion(&r);
+		}
 		switch (special) {
 			case 1:
 				dh->p = &bn768;
@@ -357,10 +362,9 @@
 				DH_free(dh);
 				return (DST_R_INVALIDPUBLICKEY);
 		}
-	}
-	else {
+	} else {
 		dh->p = BN_bin2bn(r.base, plen, NULL);
-		r.base += plen;
+		isc_region_consume(&r, plen);
 	}
 
 	/*
@@ -391,8 +395,7 @@
 				return (DST_R_INVALIDPUBLICKEY);
 			}
 		}
-	}
-	else {
+	} else {
 		if (glen == 0) {
 			DH_free(dh);
 			return (DST_R_INVALIDPUBLICKEY);
@@ -399,7 +402,7 @@
 		}
 		dh->g = BN_bin2bn(r.base, glen, NULL);
 	}
-	r.base += glen;
+	isc_region_consume(&r, glen);
 
 	if (r.length < 2) {
 		DH_free(dh);
@@ -411,7 +414,7 @@
 		return (DST_R_INVALIDPUBLICKEY);
 	}
 	dh->pub_key = BN_bin2bn(r.base, publen, NULL);
-	r.base += publen;
+	isc_region_consume(&r, publen);
 
 	key->key_size = BN_num_bits(dh->p);
 
@@ -577,11 +580,11 @@
 
 		s = strchr(hexdigits, tolower((unsigned char)str[i]));
 		RUNTIME_CHECK(s != NULL);
-		high = s - hexdigits;
+		high = (unsigned int)(s - hexdigits);
 
 		s = strchr(hexdigits, tolower((unsigned char)str[i + 1]));
 		RUNTIME_CHECK(s != NULL);
-		low = s - hexdigits;
+		low = (unsigned int)(s - hexdigits);
 
 		data[i/2] = (unsigned char)((high << 4) + low);
 	}
--- old/lib/dns/openssldsa_link.c	Mon Aug 24 00:18:24 2015
+++ new/lib/dns/openssldsa_link.c	Mon Aug 24 00:18:23 2015
@@ -1,5 +1,5 @@
 /*
- * Portions Copyright (C) 2004-2009, 2011, 2012  Internet Systems Consortium, Inc. ("ISC")
+ * Portions Copyright (C) 2004-2009, 2011-2013  Internet Systems Consortium, Inc. ("ISC")
  * Portions Copyright (C) 1999-2002  Internet Software Consortium.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
@@ -137,6 +137,7 @@
 	DSA *dsa = key->keydata.dsa;
 	isc_region_t r;
 	DSA_SIG *dsasig;
+	unsigned int klen;
 #if USE_EVP
 	EVP_MD_CTX *evp_md_ctx = dctx->ctxdata.evp_md_ctx;
 	EVP_PKEY *pkey;
@@ -209,11 +210,17 @@
 					       "DSA_do_sign",
 					       DST_R_SIGNFAILURE));
 #endif
-	*r.base++ = (key->key_size - 512)/64;
+
+	klen = (key->key_size - 512)/64;
+	if (klen > 255)
+		return (ISC_R_FAILURE);
+	*r.base = klen;
+	isc_region_consume(&r, 1);
+
 	BN_bn2bin_fixed(dsasig->r, r.base, ISC_SHA1_DIGESTLENGTH);
-	r.base += ISC_SHA1_DIGESTLENGTH;
+	isc_region_consume(&r, ISC_SHA1_DIGESTLENGTH);
 	BN_bn2bin_fixed(dsasig->s, r.base, ISC_SHA1_DIGESTLENGTH);
-	r.base += ISC_SHA1_DIGESTLENGTH;
+	isc_region_consume(&r, ISC_SHA1_DIGESTLENGTH);
 	DSA_SIG_free(dsasig);
 	isc_buffer_add(sig, ISC_SHA1_DIGESTLENGTH * 2 + 1);
 
@@ -416,15 +423,16 @@
 	if (r.length < (unsigned int) dnslen)
 		return (ISC_R_NOSPACE);
 
-	*r.base++ = t;
+	*r.base = t;
+	isc_region_consume(&r, 1);
 	BN_bn2bin_fixed(dsa->q, r.base, ISC_SHA1_DIGESTLENGTH);
-	r.base += ISC_SHA1_DIGESTLENGTH;
+	isc_region_consume(&r, ISC_SHA1_DIGESTLENGTH);
 	BN_bn2bin_fixed(dsa->p, r.base, key->key_size/8);
-	r.base += p_bytes;
+	isc_region_consume(&r, p_bytes);
 	BN_bn2bin_fixed(dsa->g, r.base, key->key_size/8);
-	r.base += p_bytes;
+	isc_region_consume(&r, p_bytes);
 	BN_bn2bin_fixed(dsa->pub_key, r.base, key->key_size/8);
-	r.base += p_bytes;
+	isc_region_consume(&r, p_bytes);
 
 	isc_buffer_add(data, dnslen);
 
@@ -449,7 +457,8 @@
 		return (ISC_R_NOMEMORY);
 	dsa->flags &= ~DSA_FLAG_CACHE_MONT_P;
 
-	t = (unsigned int) *r.base++;
+	t = (unsigned int) *r.base;
+	isc_region_consume(&r, 1);
 	if (t > 8) {
 		DSA_free(dsa);
 		return (DST_R_INVALIDPUBLICKEY);
@@ -456,22 +465,22 @@
 	}
 	p_bytes = 64 + 8 * t;
 
-	if (r.length < 1 + ISC_SHA1_DIGESTLENGTH + 3 * p_bytes) {
+	if (r.length < ISC_SHA1_DIGESTLENGTH + 3 * p_bytes) {
 		DSA_free(dsa);
 		return (DST_R_INVALIDPUBLICKEY);
 	}
 
 	dsa->q = BN_bin2bn(r.base, ISC_SHA1_DIGESTLENGTH, NULL);
-	r.base += ISC_SHA1_DIGESTLENGTH;
+	isc_region_consume(&r, ISC_SHA1_DIGESTLENGTH);
 
 	dsa->p = BN_bin2bn(r.base, p_bytes, NULL);
-	r.base += p_bytes;
+	isc_region_consume(&r, p_bytes);
 
 	dsa->g = BN_bin2bn(r.base, p_bytes, NULL);
-	r.base += p_bytes;
+	isc_region_consume(&r, p_bytes);
 
 	dsa->pub_key = BN_bin2bn(r.base, p_bytes, NULL);
-	r.base += p_bytes;
+	isc_region_consume(&r, p_bytes);
 
 	key->key_size = p_bytes * 8;
 
--- old/lib/dns/opensslrsa_link.c	Mon Aug 24 00:18:24 2015
+++ new/lib/dns/opensslrsa_link.c	Mon Aug 24 00:18:23 2015
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004-2012, 2014  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2004-2009, 2011-2014  Internet Systems Consortium, Inc. ("ISC")
  * Copyright (C) 2000-2003  Internet Software Consortium.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
@@ -908,6 +908,7 @@
 	RSA *rsa;
 	isc_region_t r;
 	unsigned int e_bytes;
+	unsigned int length;
 #if USE_EVP
 	EVP_PKEY *pkey;
 #endif
@@ -915,6 +916,7 @@
 	isc_buffer_remainingregion(data, &r);
 	if (r.length == 0)
 		return (ISC_R_SUCCESS);
+	length = r.length;
 
 	rsa = RSA_new();
 	if (rsa == NULL)
@@ -925,8 +927,8 @@
 		RSA_free(rsa);
 		return (DST_R_INVALIDPUBLICKEY);
 	}
-	e_bytes = *r.base++;
-	r.length--;
+	e_bytes = *r.base;
+	isc_region_consume(&r, 1);
 
 	if (e_bytes == 0) {
 		if (r.length < 2) {
@@ -933,9 +935,10 @@
 			RSA_free(rsa);
 			return (DST_R_INVALIDPUBLICKEY);
 		}
-		e_bytes = ((*r.base++) << 8);
-		e_bytes += *r.base++;
-		r.length -= 2;
+		e_bytes = (*r.base) << 8;
+		isc_region_consume(&r, 1);
+		e_bytes += *r.base;
+		isc_region_consume(&r, 1);
 	}
 
 	if (r.length < e_bytes) {
@@ -943,14 +946,13 @@
 		return (DST_R_INVALIDPUBLICKEY);
 	}
 	rsa->e = BN_bin2bn(r.base, e_bytes, NULL);
-	r.base += e_bytes;
-	r.length -= e_bytes;
+	isc_region_consume(&r, e_bytes);
 
 	rsa->n = BN_bin2bn(r.base, r.length, NULL);
 
 	key->key_size = BN_num_bits(rsa->n);
 
-	isc_buffer_forward(data, r.length);
+	isc_buffer_forward(data, length);
 
 #if USE_EVP
 	pkey = EVP_PKEY_new();
--- old/lib/dns/resolver.c	Mon Aug 24 00:18:24 2015
+++ new/lib/dns/resolver.c	Mon Aug 24 00:18:23 2015
@@ -8572,6 +8572,12 @@
 
 	REQUIRE(VALID_RESOLVER(resolver));
 
+	/*
+	 * DH is unsupported for DNSKEYs, see RFC 4034 sec. A.1.
+	 */
+	if ((alg == DST_ALG_DH) || (alg == DST_ALG_INDIRECT))
+		return (ISC_FALSE);
+
 #if USE_ALGLOCK
 	RWLOCK(&resolver->alglock, isc_rwlocktype_read);
 #endif
@@ -8591,6 +8597,7 @@
 #endif
 	if (found)
 		return (ISC_FALSE);
+
 	return (dst_algorithm_supported(alg));
 }
 
--- old/lib/isc/include/isc/md5.h	Mon Aug 24 00:18:24 2015
+++ new/lib/isc/include/isc/md5.h	Mon Aug 24 00:18:23 2015
@@ -46,7 +46,8 @@
 #include <isc/lang.h>
 #include <isc/types.h>
 
-#define ISC_MD5_DIGESTLENGTH 16U
+#define ISC_MD5_DIGESTLENGTH   16U
+#define        ISC_MD5_BLOCK_LENGTH    64U
 
 typedef struct {
 	isc_uint32_t buf[4];
--- old/version	Mon Aug 24 00:18:24 2015
+++ new/version	Mon Aug 24 00:18:23 2015
@@ -10,4 +10,4 @@
 PATCHVER=
 RELEASETYPE=-ESV
 RELEASEVER=-R11
-EXTENSIONS=-P2
+EXTENSIONS=-P3