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37bb75f740
1. Very large RRSIG RRsets included in a negative cache can trigger an assertion failure that will crash named (BIND 9 DNS) due to an off-by-one error in a buffer size check. This bug affects all resolving name servers, whether DNSSEC validation is enabled or not, on all BIND versions prior to today. There is a possibility of malicious exploitation of this bug by remote users. 2. Named could fail to validate zones listed in a DLV that validated insecure without using DLV and had DS records in the parent zone. Add a patch provided by ru@ and confirmed by ISC to fix a crash at shutdown time when a SIG(0) key is being used.
55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
/*
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* Copyright (C) 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC")
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* Copyright (C) 1998-2001 Internet Software Consortium.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
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* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef GENERIC_OPT_41_H
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#define GENERIC_OPT_41_H 1
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/* $Id: opt_41.h,v 1.18 2007-06-19 23:47:17 tbox Exp $ */
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/*!
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* \brief Per RFC2671 */
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typedef struct dns_rdata_opt_opcode {
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isc_uint16_t opcode;
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isc_uint16_t length;
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unsigned char *data;
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} dns_rdata_opt_opcode_t;
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typedef struct dns_rdata_opt {
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dns_rdatacommon_t common;
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isc_mem_t *mctx;
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unsigned char *options;
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isc_uint16_t length;
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/* private */
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isc_uint16_t offset;
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} dns_rdata_opt_t;
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/*
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* ISC_LANG_BEGINDECLS and ISC_LANG_ENDDECLS are already done
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* via rdatastructpre.h and rdatastructsuf.h.
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*/
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isc_result_t
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dns_rdata_opt_first(dns_rdata_opt_t *);
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isc_result_t
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dns_rdata_opt_next(dns_rdata_opt_t *);
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isc_result_t
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dns_rdata_opt_current(dns_rdata_opt_t *, dns_rdata_opt_opcode_t *);
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#endif /* GENERIC_OPT_41_H */
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