svn commit: r195933 - in stable/7/contrib/bind9: . bin/named lib/dns

[Doug Barton]

Author: dougb
Date: Tue Jul 28 23:59:22 2009
New Revision: 195933
URL: http://svn.freebsd.org/changeset/base/195933

Log:
  Update to version 9.4.3-P3 which addresses a remote DoS vulnerability:
  
  	Receipt of a specially-crafted dynamic update message may
  	cause BIND 9 servers to exit. This vulnerability affects all
  	servers -- it is not limited to those that are configured to
  	allow dynamic updates. Access controls will not provide an
  	effective workaround.
  
  More details can be found here: https://www.isc.org/node/474
  
  All BIND users are encouraged to update to a patched version ASAP.

Modified:
  stable/7/contrib/bind9/   (props changed)
  stable/7/contrib/bind9/CHANGES   (contents, props changed)
  stable/7/contrib/bind9/bin/named/update.c
  stable/7/contrib/bind9/lib/dns/validator.c   (props changed)
  stable/7/contrib/bind9/version   (contents, props changed)

Modified: stable/7/contrib/bind9/CHANGES
==============================================================================
--- stable/7/contrib/bind9/CHANGES	Tue Jul 28 23:42:39 2009	(r195932)
+++ stable/7/contrib/bind9/CHANGES	Tue Jul 28 23:59:22 2009	(r195933)
@@ -1,3 +1,8 @@
+	--- 9.4.3-P3 released ---
+
+2640.	[security]	A specially crafted update packet will cause named
+			to exit. [RT #20000]
+
 	--- 9.4.3-P2 released ---
 
 2579.	[bug]		DNSSEC lookaside validation failed to handle unknown

Modified: stable/7/contrib/bind9/bin/named/update.c
==============================================================================
--- stable/7/contrib/bind9/bin/named/update.c	Tue Jul 28 23:42:39 2009	(r195932)
+++ stable/7/contrib/bind9/bin/named/update.c	Tue Jul 28 23:59:22 2009	(r195933)
@@ -15,7 +15,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: update.c,v 1.109.18.27 2008/02/07 03:16:08 marka Exp $ */
+/* $Id: update.c,v 1.109.18.27.4.1 2009/07/28 13:57:27 marka Exp $ */
 
 #include <config.h>
 
@@ -865,7 +865,11 @@ temp_check(isc_mem_t *mctx, dns_diff_t *
 			if (type == dns_rdatatype_rrsig ||
 			    type == dns_rdatatype_sig)
 				covers = dns_rdata_covers(&t->rdata);
-			else
+			else if (type == dns_rdatatype_any) {
+				dns_db_detachnode(db, &node);
+				dns_diff_clear(&trash);
+				return (DNS_R_NXRRSET);
+			} else
 				covers = 0;
 
 			/*

Modified: stable/7/contrib/bind9/version
==============================================================================
--- stable/7/contrib/bind9/version	Tue Jul 28 23:42:39 2009	(r195932)
+++ stable/7/contrib/bind9/version	Tue Jul 28 23:59:22 2009	(r195933)
@@ -1,4 +1,4 @@
-# $Id: version,v 1.29.134.23.2.2 2009/03/17 02:23:49 marka Exp $
+# $Id: version,v 1.29.134.23.2.3 2009/07/28 13:57:27 marka Exp $
 #
 # This file must follow /bin/sh rules.  It is imported directly via
 # configure.
@@ -7,4 +7,4 @@ MAJORVER=9
 MINORVER=4
 PATCHVER=3
 RELEASETYPE=-P
-RELEASEVER=2
+RELEASEVER=3