Changes in dyndb.c

Changes in dyndb.c http://nxr.netbsd.org/rss/src/external/mpl/bind/dist/lib/dns/dyndb.c en Copyright 2005 Java Merge changes between bind-9.20.11 and 9.20.18 /src/external/mpl/bind/dist/lib/dns/dyndb.c - 1.13 Thu Jan 29 18:37:49 UTC 2026 christos Merge conflicts between 9.18.30 and 9.20.4 /src/external/mpl/bind/dist/lib/dns/dyndb.c - 1.12 Sun Jan 26 16:25:22 UTC 2025 christos branches: 1.11.2; merge conflicts between 9.16.42 and 9.18.24 /src/external/mpl/bind/dist/lib/dns/dyndb.c - 1.11 Wed Feb 21 22:52:06 UTC 2024 christos branches: 1.10.2; Merge conflicts between 9.16.20 and 9.16.33 /src/external/mpl/bind/dist/lib/dns/dyndb.c - 1.10 Fri Sep 23 00:15:29 UTC 2022 christos Merge changes between bind 9.16.15 and 9.16.20 and restore dns client APIs needed by dhcpd. /src/external/mpl/bind/dist/lib/dns/dyndb.c - 1.9 Thu Aug 19 11:50:17 UTC 2021 christos bind: remove unnecessary CONSTCOND comments Since lint1/tree.c 1.202 from 2021-01-31, lint no longer needs the /*CONSTCOND*/ for do-while-0 "loops". No functional change. /src/external/mpl/bind/dist/lib/dns/dyndb.c - 1.8 Mon Apr 05 11:27:02 UTC 2021 rillig merge conflicts, adjust build. /src/external/mpl/bind/dist/lib/dns/dyndb.c - 1.7 Fri Feb 19 16:42:16 UTC 2021 christos Merge conflicts, bump libraries, adjust the build. /src/external/mpl/bind/dist/lib/dns/dyndb.c - 1.6 Mon Aug 03 17:23:41 UTC 2020 christos Merge conflicts /src/external/mpl/bind/dist/lib/dns/dyndb.c - 1.5 Sun May 24 19:46:22 UTC 2020 christos branches: 1.4.2; 1.4.4; merge conflicts /src/external/mpl/bind/dist/lib/dns/dyndb.c - 1.4 Sun Feb 24 20:01:30 UTC 2019 christos merge conflicts, bump major, fix build. /src/external/mpl/bind/dist/lib/dns/dyndb.c - 1.3 Wed Jan 09 16:55:11 UTC 2019 christos branches: 1.2.2; merge conflicts, add build glue. /src/external/mpl/bind/dist/lib/dns/dyndb.c - 1.2 Sun Aug 12 13:02:35 UTC 2018 christos branches: 1.1.1; Initial revision /src/external/mpl/bind/dist/lib/dns/dyndb.c - 1.1 Sun Aug 12 00:08:14 UTC 2018 christos Import bind-9.20.18 (previous was 9.20.11) BIND 9.20.18# Security Fixes# [CVE-2025-13878] Fix incorrect length checks for BRID and HHIT records. d4c0d61701 Malformed BRID and HHIT records could trigger an assertion failure. This has been fixed. ISC would like to thank Vlatko Kosturjak from Marlink Cyber for bringing this vulnerability to our attention. [GL #5616] Feature Changes# Support compilation with cmocka 2.0.0+ bb9234c6ce The assert_in_range() function was deprecated in favor of assert_int_in_range() and assert_uint_in_range(). Add compatibility shims for cmocka<2.0.0 and use the new functions. [GL #5699] [GL !11437] Add more information to the rndc recursing output about fetches. 9766feb4df This adds more information about the active fetches for debugging and diagnostic purposes. [GL !11358] Bug Fixes# Make key rollovers more robust. 7a70d05b5d A manual rollover when the zone is in an invalid DNSSEC state causes predecessor keys to be removed too quickly. Additional safeguards to prevent this have been added. DNSSEC records will not be removed from the zone until the underlying state machine has moved back into a valid DNSSEC state. [GL #5458] [GL !11329] Fix a catalog zones issue when a member zone could fail to load. 95cbc2c327 A catalog zone's member zone could fail to load in some rare cases, when the internally generated zone configuration string was exceeding 512 bytes. That condition only was not enough for the issue to arise, but it was a necessary condition. This could happen, for example, if the catalog zone's default primary servers list contained a large number of items. This has been fixed. [GL #5658] [GL !11349] Allow glue in delegations with QTYPE=ANY. 441158ac18 When a query for type ANY triggered a delegation response, all additional data was omitted from the response, including mandatory glue. This has been corrected. [GL #5659] [GL !11283] Adding NSEC3 opt-out records could leave invalid records in chain. 1b90296e1f When creating an NSEC3 opt-out chain, a node in the chain could be removed too soon, causing the previous NSEC3 being unable to be found, resulting in invalid NSEC3 records to be left in the zone. This has been fixed. [GL #5671] [GL !11340] Fix slow speed of NSEC3 optout large delegation zone signing. 88f915b77b BIND 9.20 takes much more time signing a large delegation zone with NSEC3 optout compared to version 9.18. This has been restored. [GL #5672] [GL !11362] Reconfigure NSEC3 opt-out zone to NSEC causes zone to be invalid. 1d0e19c612 A zone that is signed with NSEC3, opt-out enabled, and then reconfigured to use NSEC, causes the zone to be published with missing NSEC records. This has been fixed. [GL #5679] [GL !11401] Fix a possible catalog zone issue during reconfiguration. 911b45b2b3 The named process could terminate unexpectedly during reconfiguration when a catalog zone update was taking place at the same time. This has been fixed. [GL !11386] Fix the charts in the statistics channel. 7c7b01dd65 The charts in the statistics channel could sometimes fail to render in the browser, and were completely disabled for Mozilla-based browsers for historical reasons. This has been fixed. [GL !11364] BIND 9.20.17# New Features# Add spatch to detect implicit bool/int/result cast. 02be363d1f Detection of implicit cast from a boolean into an int, or an isc_result_t into a boolean (either in an assignement or return position). If such pattern is found, a warning comment is added into the code (and the CI will fails) so the error can be spotted and manually fixed. [GL !11237] Feature Changes# Use atomics for CMM_{LOAD,STORE}_SHARED with ThreadSanitizer. 94fa721705 Upstream has removed the atomics implementation of CMM_LOAD_SHARED and CMM_STORE_SHARED as these can be used also with non-stdatomics types. As we only use the CMM api with stdatomics types, we can restore the previous behaviour to prevent ThreadSanitizer warnings. [GL #5660] [GL !11290] Provide more information when the memory allocation fails. 6749725610 Provide more information about the failure when the memory allocation fails. [GL !11304] Reduce the number of outgoing queries. 457b470e96 Reduces the number of outgoing queries when resolving the nameservers for delegation points. This helps the DNS resolver with cold cache resolve client queries with complex delegation chains and redirections. [GL !11258] Bug Fixes# Fix the spurious timeouts while resolving names. d96cf874fb Sometimes the loops in the resolving (e.g. to resolve or validate ns1.example.com we need to resolve ns1.example.com) were not properly detected leading to spurious 10 seconds delay. This has been fixed and such loops are properly detected. [GL #3033], #5578 [GL !11298] Fix bug where zone switches from NSEC3 to NSEC after retransfer. 3b40ffbf83 When a zone is re-transferred, but the zone journal on an inline-signing secondary is out of sync, the zone could fall back to using NSEC records instead of NSEC3. This has been fixed. [GL #5527] [GL !11274] Attach socket before async streamdns_resume_processing. bb9451c73f Call to streamdns_resume_processing is asynchronous but the socket passed as argument is not attached when scheduling the call. While there is no reproducible way (so far) to make the socket reference number down to 0 before streamdns_resume_processing is called, attach the socket before scheduling the call. This guard against an hypothetic case where, for some reasons, the socket refcount would reach 0, and be freed from memory when streamdns_resume_processing is called. [GL #5620] [GL !11260] AMTRELAY type 0 presentation format handling was wrong. adf104a063 RFC 8777 specifies a placeholder value of "." for the gateway field when the gateway type is 0 (no gateway). This was not being checked for nor emitted when displaying the record. This has been corrected. Instances of this record will need the placeholder period added to them when upgrading. [GL #5639] [GL !11255] Fix parsing bug in remote-servers with key or tls. d9400c5967 The remote-servers clause enable the following pattern using a named server-list: remote-servers a { 1.2.3.4; ... }; remote-servers b { a key foo; }; However, such configuration was wrongly rejected, with an "unexpected token 'foo'" error. Such configuration is now accepted. [GL #5646] [GL !11300] Fix TLS contexts cache object usage bug in the resolver. 13adf94006 named could terminate unexpectedly when reconfiguring or reloading, and if client-side TLS transport was in use (for example, when forwarding queries to a DoT server). This has been fixed. [GL #5653] [GL !11299] Fix unitiailized pointer check on getipandkeylist. 5ed0cf091b Function named_config_getipandkeylist could, in case of error in the early code attempting to get the port or tls-port, make a pointer check on a non-initialized value. This is now fixed. [GL !11306] Standardize CHECK and RETERR macros. ef714e91ac previously, there were over 40 separate definitions of CHECK macros, of which most used "goto cleanup", and the rest "goto failure" or "goto out". there were another 10 definitions of RETERR, of which most were identical to CHECK, but some simply returned a result code instead of jumping to a cleanup label. this has now been standardized throughout the code base: RETERR is for returning an error code in the case of an error, and CHECK is for jumping to a cleanup tag, which is now always called "cleanup". both macros are defined in isc/util.h. [GL !11069] Adding NSEC3 opt-out records could leave invalid records in chain. 1d83a8ad46 When creating an NSEC3 opt-out chain, a node in the chain could be removed too soon, causing the previous NSEC3 being unable to be found, resulting in invalid NSEC3 records to be left in the zone. This has been fixed. Closes [#5671](#5671) BIND 9.20.16# Feature Changes# Fix assertion failure from arc4random_uniform with invalid limit. 1040282de7e When the arc4random_uniform() is called on NetBSD with upper_bound that makes no sense statistically (0 or 1), the call crashes the calling program. Fix this by returning 0 when upper bound is < 2 as does Linux, FreeBSD and NetBSD. (Hint: System CSPRNG should never crash.) [GL #5596] [GL !11151] Bug Fixes# Fix dnssec-keygen key collision checking for KEY rrtype keys. ac8b23b80bf The dnssec-keygen utility program failed to detect possible Key ID collisions with the existing keys generated using the non-default -T KEY option (e.g. for SIG(0)). This has been fixed. [GL #5506] [GL !11128] Fix shutdown INSIST in dns_dispatchmgr_getblackhole. f0aaaef166c Previously, named could trigger an assertion in dns_dispatchmgr_getblackhole while shutting down. This has been fixed. [GL #5525] [GL !11162] Dnssec-verify now uses exit code 1 when failing due to illegal options. 6ead0aa4a2b Previously, dnssec-verify exited with code 0 if the options could not be parsed. This has been fixed. [GL #5574] [GL !11129] Prevent assertion failures of dig when server is specified before the -b option. deada63e2b2 Previously, dig could exit with an assertion failure when the server was specified before the dig -b option. This has been fixed. [GL #5609] [GL !11204] Skip unsupported algorithms when looking for signing key. c346fe88a1b A mix of supported and unsupported DNSSEC algorithms in the same zone could have caused validation failures. Ignore the DNSSEC keys with unsupported algorithm when looking for the signing keys. [GL #5622] [GL !11210] Fix configuration bugs involving global defaults. a85d6fb581c The configuration code for the max-cache-size, dnssec-validation, and response-padding options were unnecessarily complicated, and in the case of max-cache-size, buggy. These have been fixed. The optionmaps variable in configure_view() is no longer needed and has been removed. [GL !11172] Skip buffer allocations if not logging. 4f601175bd0 Currently, during IXFR we allocate a 2KB buffer for IXFR change logging regardless of the log level. This commit introduces an early check on the log level in dns_diff_print to avoid this. Results in a speedup from 28% in the test case from issue #5442. [GL !11192] BIND 9.20.15# Security Fixes# [CVE-2025-8677] DNSSEC validation fails if matching but invalid DNSKEY is found. 0d676bf9f23 Previously, if a matching but cryptographically invalid key was encountered during DNSSEC validation, the key was skipped and not counted towards validation failures. named now treats such DNSSEC keys as hard failures and the DNSSEC validation fails immediately, instead of continuing with the next DNSKEYs in the RRset. ISC would like to thank Zuyao Xu and Xiang Li from the All-in-One Security and Privacy Laboratory at Nankai University for bringing this vulnerability to our attention. [GL #5343] [CVE-2025-40778] Address various spoofing attacks. 23de94fd236 Previously, several issues could be exploited to poison a DNS cache with spoofed records for zones which were not DNSSEC-signed or if the resolver was configured to not do DNSSEC validation. These issues were assigned CVE-2025-40778 and have now been fixed. As an additional layer of protection, named no longer accepts DNAME records or extraneous NS records in the AUTHORITY section unless these are received via spoofing-resistant transport (TCP, UDP with DNS cookies, TSIG, or SIG(0)). ISC would like to thank Yuxiao Wu, Yunyi Zhang, Baojun Liu, and Haixin Duan from Tsinghua University for bringing this vulnerability to our attention. [GL #5414] [CVE-2025-40780] Cache-poisoning due to weak pseudo-random number generator. 34af35c2df8 It was discovered during research for an upcoming academic paper that a xoshiro128** internal state can be recovered by an external 3rd party, allowing the prediction of UDP ports and DNS IDs in outgoing queries. This could lead to an attacker spoofing the DNS answers with great efficiency and poisoning the DNS cache. The internal random generator has been changed to a cryptographically secure pseudo-random generator. ISC would like to thank Prof. Amit Klein and Omer Ben Simhon from Hebrew University of Jerusalem for bringing this vulnerability to our attention. [GL #5484] New Features# Add dnssec-policy keys configuration check to named-checkconf. 1f5a0405f72 A new option -k is added to named-checkconf that allows checking the dnssec-policy keys configuration against the configured key stores. If the found key files are not in sync with the given dnssec-policy, the check will fail. This is useful to run before migrating to dnssec-policy. [GL #5486] [GL !11011] Feature Changes# Minor refactor of dst code. c6acbaa020b Convert the defines to enums. Initialize the tags more explicitly and less ugly. [GL !11038] Bug Fixes# Use signer name when disabling DNSSEC algorithms. 986816baa74 disable-algorithms could cause DNSSEC validation failures when the parent zone was signed with the algorithms that were being disabled for the child zone. This has been fixed; disable-algorithms now works on a whole-of-zone basis. If the zone's name is at or below the disable-algorithms name the algorithm is disabled for that zone, using deepest match when there are multiple disable-algorithms clauses. [GL #5165] [GL !11014] Rndc sign during ZSK rollover will now replace signatures. d2f551140cd When performing a ZSK rollover, if the new DNSKEY is omnipresent, the rndc sign command now signs the zone completely with the successor key, replacing all zone signatures from the predecessor key with new ones. [GL #5483] [GL !11017] Missing DNSSEC information when CD bit is set in query. 968a6be41fb The RRSIGs for glue records were not being cached correctly for CD=1 queries. This has been fixed. [GL #5502] [GL !10956] Preserve cache when reload fails and reload the server again. 975aeda10b4 Fixes an issue where failing to reconfigure/reload the server would prevent to preserved the views caches on the subsequent server reconfiguration/reload. [GL #5523] [GL !10988] Check plugin config before registering. e2260b80702 In named_config_parsefile(), when checking the validity of named.conf, the checking of plugin correctness was deliberately postponed until the plugin is loaded and registered. However, the checking was never actually done: the plugin_register() implementation was called, but plugin_check() was not. ns_plugin_register() (used by named) now calls the check function before the register function, and aborts if either one fails. ns_plugin_check() (used by named-checkconf) calls only the check function. [GL !11032] BIND 9.20.14# Note The BIND 9.20.14 release was withdrawn after the discovery of a regression in a security fix in it during pre-release testing. BIND 9.20.13# New Features# Add manual mode configuration option to dnsec-policy. 1e435b107f Add a new option manual-mode to dnssec-policy. The intended use is that if it is enabled, it will not automatically move to the next state transition, but instead the transition is logged. Only after manual confirmation with rndc dnssec -step the transition is made. [GL #4606] [GL !10880] Add a new 'servfail-until-ready' configuration option for RPZ. 925af17d21 By default, when named is started it may start answering to queries before the response policy zones are completely loaded and processed. This new feature gives an option to the users to tell named that incoming requests should result in SERVFAIL answer until all the response policy zones are processed and ready. Note that if one or more response policy zones fail to load, named starts responding to queries according to those zones that did load. Note, that enabling this option has no effect when a DNS Response Policy Service (DNSRPS) interface is used. [GL #5222] [GL !10889] Support for parsing HHIT and BRID records has been added. 1f051af24d [GL #5444] [GL !10932] Removed Features# Deprecate the "tkey-gssapi-credential" statement. b239a70cac The tkey-gssapi-keytab statement allows GSS-TSIG to be set up in a simpler and more reliable way than using the tkey-gssapi-credential statement and setting environment variables (e.g. KRB5_KTNAME). Therefore, the tkey-gssapi-credential statement has been deprecated; tkey-gssapi-keytab should be used instead. For configurations currently using a combination of both tkey-gssapi-keytab and tkey-gssapi-credential, the latter should be dropped and the keytab pointed to by tkey-gssapi-keytab should now only contain the credential previously specified by tkey-gssapi-credential. [GL #4204] [GL !10924] Obsolete the "tkey-domain" statement. 9352ae65d7 Mark the tkey-domain statement as obsolete, since it has not had any effect on server behavior since support for TKEY Mode 2 (Diffie-Hellman) was removed (in BIND 9.20.0). [GL #4204] [GL !10926] Feature Changes# Update clang-format style with options added in newer versions. 0c2c477c31 Add and apply InsertBraces statement to add missing curly braces around one-line statements and use ControlStatementsExceptControlMacros for SpaceBeforeParens to remove space between foreach macro and the brace, e.g. FOREACH (x) { becomes FOREACH(x) {. [GL !10864] Bug Fixes# Ensure file descriptors 0-2 are in use. 35dee6eb90 libuv expect file descriptors <= STDERR_FILENO are in use. otherwise, it may abort when closing a file descriptor it opened. [GL #5226] [GL !10908] Prevent spurious SERVFAILs for certain 0-TTL resource records. 6b266b222c Under certain circumstances, BIND 9 can return SERVFAIL when updating existing entries in the cache with new NS, A, AAAA, or DS records with 0-TTL. [GL #5294] [GL !10898] Use DNS_RDATACOMMON_INIT to hide branch differences. a64df9729b Initialization of the common members of rdata type structures varies across branches. Standardize it by using the DNS_RDATACOMMON_INIT macro for all types, so that new types are more likely to use it, and hence backport more cleanly. [GL #5467] [GL !10834] RPZ canonical warning displays zone entry incorrectly. d833676515 When an IPv6 rpz prefix entry is entered incorrectly the log message was just displaying the prefix rather than the full entry. This has been corrected. [GL #5491] [GL !10930] Fix a catalog zone issue when having an unset 'default-primaries' configuration clause. 293e75af28 A catalog zone with an unset default-primaries clause could cause an unexpected termination of the named process after two reloading or reconfiguration commands. This has been fixed. [GL #5494] [GL !10905] Add and use __attribute__((nonnull)) in dnssec-signzone.c. a8eed36d3e Clang 20 was spuriously warning about the possibility of passing a NULL file pointer to fprintf(), which uses the 'nonnull' attribute. To silence the warning, the functions calling fprintf() have been marked with the same attribute to assure that NULL can't be passed to them in the first place. Close #5487 [GL !10913] RPZ 'servfail-until-ready': skip updating SERVFAIL cache. af2fb26325 In order to not pollute the SERVFAIL cache with the configured SERVFAIL answers while RPZ is loading, set the NS_CLIENTATTR_NOSETFC attribute for the client. [GL !10940] BIND 9.20.12# New Features# Support for parsing the DSYNC record has been added. f440fe712d [GL #5440] [GL !10820] Feature Changes# Adaptive memory allocation strategy for qp-tries. 9a046cbed5 qp-tries allocate their nodes (twigs) in chunks to reduce allocator pressure and improve memory locality. The choice of chunk size presents a tradeoff: larger chunks benefit qp-tries with many values (as seen in large zones and resolvers) but waste memory in smaller use cases. Previously, our fixed chunk size of 2^10 twigs meant that even an empty qp-trie would consume 12KB of memory, while reducing this size would negatively impact resolver performance. This MR implements an adaptive chunking strategy that tracks the size of the most recently allocated chunk and doubles the chunk size for each new allocation until reaching a predefined maximum. This approach effectively balances memory efficiency for small tries while maintaining the performance benefits of larger chunk sizes for bigger data structures. [GL #5445] [GL !10804] Add deprecation warnings for RSASHA1, RSASHA1-NSEC3SHA1 and DS digest type 1. 5aefaa4b97 RSASHA1 and RSASHA1-NSEC-SHA1 DNSKEY algorithms have been deprecated by the IETF and should no longer be used for DNSSEC. DS digest type 1 (SHA1) has also been deprecated. Validators are now expected to treat these algorithms and digest as unknown, resulting in some zones being treated as insecure when they were previously treated as secure. Warnings have been added to named and tools when these algorithms and this digest are being used for signing. Zones signed with RSASHA1 or RSASHA1-NSEC-SHA1 should be migrated to a different DNSKEY algorithm. Zones with DS or CDS records with digest type 1 (SHA1) should be updated to use a different digest type (e.g. SHA256) and the digest type 1 records should be removed. Related to #5358 [GL !10738] Bug Fixes# Stale RRsets in a CNAME chain were not always refreshed. ed37c7825e With serve-stale enabled, a CNAME chain that contains a stale RRset, the refresh query doesn't always properly refresh the stale RRsets. This has been fixed. [GL #5243] [GL !10767] Add RPZ extended DNS error for zones with a CNAME override policy configured. 39ad2016c1 When the zone is configured with a CNAME override policy, or the response policy zone contains a wildcard CNAME, the extended DNS error code was not added. This has been fixed. [GL #5342] [GL !10819] Fix a possible crash when adding a zone while recursing. 7a3ec8dd94 A query for a zone that was not yet loaded may yield an unexpected result such as a CNAME or DNAME, triggering an assertion failure. This has been fixed. [GL #5357] [GL !10718] Fix dig issues. 8c50819aa8 When used with the +keepopen option with a TCP connection, iscman:dig could terminate unexpectedly in rare situations. Additionally, iscman:dig could hang and fail to shutdown properly when interrupted during a query. These have been fixed. [GL #5381] [GL !10727] Log dropped or slipped responses in the query-errors category. 47470b586d Responses which were dropped or slipped because of RRL (Response Rate Limiting) were logged in the rate-limit category instead of the query-errors category, as documented in ARM. This has been fixed. [GL #5388] [GL !10725] Separate out adbname type flags. fc689c6525 There are three adbname flags that are used to identify different types of adbname lookups when hashing rather than using multiple hash tables. Separate these to their own structure element as these need to be able to be read without locking the adbname structure. [GL #5404] [GL !10695] Synth-from-dnssec was not working in some scenarios. bc54f059e0 Aggressive use of DNSSEC-Validated cache with NSEC was not working in scenarios when no parent NSEC was not in cache. This has been fixed. [GL #5422] [GL !10754] Clean enough memory when adding new ADB names/entries under memory pressure. b7e7923daa The ADB memory cleaning is opportunistic even when we are under memory pressure (in the overmem condition). Split the opportunistic LRU cleaning and overmem cleaning and make the overmem cleaning always cleanup double of the newly allocated adbname/adbentry to ensure we never allocate more memory than the assigned limit. [GL !10707] Prevent spurious validation failures. 3b98c7cc9d Under rare circumstances, validation could fail if multiple clients simultaneously iterated the same set of signatures. References #3014 [GL !10815] Rename variable called 'free' to prevent the clash with free() 7f25d92c5d [GL !10757] /src/external/mpl/bind/dist/lib/dns/dyndb.c - 1.1.1.11 Thu Jan 29 18:19:52 UTC 2026 christos Import bind-9.20.4. Previous was 9.18.30. The changes are too voluminous to list here and can be found in: https://downloads.isc.org/isc/bind9/cur/9.20/doc/arm/html/changelog.html /src/external/mpl/bind/dist/lib/dns/dyndb.c - 1.1.1.10 Sun Jan 26 16:12:33 UTC 2025 christos Import bind-9.18.24 (previous was 9.16.42) --- 9.18.24 released --- 6343. [bug] Fix case insensitive setting for isc_ht hashtable. [GL #4568] --- 9.18.23 released --- 6322. [security] Specific DNS answers could cause a denial-of-service condition due to DNS validation taking a long time. (CVE-2023-50387) [GL #4424] 6321. [security] Change 6315 inadvertently introduced regressions that could cause named to crash. [GL #4234] 6320. [bug] Under some circumstances, the DoT code in client mode could process more than one message at a time when that was not expected. That has been fixed. [GL #4487] --- 9.18.22 released --- 6319. [func] Limit isc_task_send() overhead for RBTDB tree pruning. [GL #4383] 6317. [security] Restore DNS64 state when handling a serve-stale timeout. (CVE-2023-5679) [GL #4334] 6316. [security] Specific queries could trigger an assertion check with nxdomain-redirect enabled. (CVE-2023-5517) [GL #4281] 6315. [security] Speed up parsing of DNS messages with many different names. (CVE-2023-4408) [GL #4234] 6314. [bug] Address race conditions in dns_tsigkey_find(). [GL #4182] 6312. [bug] Conversion from NSEC3 signed to NSEC signed could temporarily put the zone into a state where it was treated as unsigned until the NSEC chain was built. Additionally conversion from one set of NSEC3 parameters to another could also temporarily put the zone into a state where it was treated as unsigned until the new NSEC3 chain was built. [GL #1794] [GL #4495] 6310. [bug] Memory leak in zone.c:sign_zone. When named signed a zone it could leak dst_keys due to a misplaced 'continue'. [GL #4488] 6306. [func] Log more details about the cause of "not exact" errors. [GL #4500] 6304. [bug] The wrong time was being used to determine what RRSIGs where to be generated when dnssec-policy was in use. [GL #4494] 6302. [func] The "trust-anchor-telemetry" statement is no longer marked as experimental. This silences a relevant log message that was emitted even when the feature was explicitly disabled. [GL #4497] 6300. [bug] Fix statistics export to use full 64 bit signed numbers instead of truncating values to unsigned 32 bits. [GL #4467] 6299. [port] NetBSD has added 'hmac' to libc which collides with our use of 'hmac'. [GL #4478] --- 9.18.21 released --- 6297. [bug] Improve LRU cleaning behaviour. [GL #4448] 6296. [func] The "resolver-nonbackoff-tries" and "resolver-retry-interval" options are deprecated; a warning will be logged if they are used. [GL #4405] 6294. [bug] BIND might sometimes crash after startup or re-configuration when one 'tls' entry is used multiple times to connect to remote servers due to initialisation attempts from contexts of multiple threads. That has been fixed. [GL #4464] 6290. [bug] Dig +yaml will now report "no servers could be reached" also for UDP setup failure when no other servers or tries are left. [GL #1229] 6287. [bug] Recognize escapes when reading the public key from file. [GL !8502] 6286. [bug] Dig +yaml will now report "no servers could be reached" on TCP connection failure as well as for UDP timeouts. [GL #4396] 6282. [func] Deprecate AES-based DNS cookies. [GL #4421] --- 9.18.20 released --- 6280. [bug] Fix missing newlines in the output of "rndc nta -dump". [GL !8454] 6277. [bug] Take into account local authoritative zones when falling back to serve-stale. [GL #4355] 6275. [bug] Fix assertion failure when using lock-file configuration option together -X argument to named. [GL #4386] 6274. [bug] The 'lock-file' file was being removed when it shouldn't have been making it ineffective if named was started 3 or more times. [GL #4387] 6271. [bug] Fix a shutdown race in dns__catz_update_cb(). [GL #4381] 6269. [maint] B.ROOT-SERVERS.NET addresses are now 170.247.170.2 and 2801:1b8:10::b. [GL #4101] 6267. [func] The timeouts for resending zone refresh queries over UDP were lowered to enable named to more quickly determine that a primary is down. [GL #4260] 6265. [bug] Don't schedule resign operations on the raw version of an inline-signing zone. [GL #4350] 6261. [bug] Fix a possible assertion failure on an error path in resolver.c:fctx_query(), when using an uninitialized link. [GL #4331] 6254. [cleanup] Add semantic patch to do an explicit cast from char to unsigned char in ctype.h class of functions. [GL #4327] 6252. [test] Python system tests have to be executed by invoking pytest directly. Executing them with the legacy test runner is no longer supported. [GL #4250] 6250. [bug] The wrong covered value was being set by dns_ncache_current for RRSIG records in the returned rdataset structure. This resulted in TYPE0 being reported as the covered value of the RRSIG when dumping the cache contents. [GL #4314] --- 9.18.19 released --- 6246. [security] Fix use-after-free error in TLS DNS code when sending data. (CVE-2023-4236) [GL #4242] 6245. [security] Limit the amount of recursion that can be performed by isccc_cc_fromwire. (CVE-2023-3341) [GL #4152] 6244. [bug] Adjust log levels on malformed messages to NOTICE when transferring in a zone. [GL #4290] 6241. [bug] Take into account the possibility of partial TLS writes in TLS DNS code. That helps to prevent DNS messages corruption on long DNS over TLS streams. [GL #4255] 6240. [bug] Use dedicated per-worker thread jemalloc memory arenas for send buffers allocation to reduce memory consumption and avoid lock contention. [GL #4038] 6239. [func] Deprecate the 'dnssec-must-be-secure' option. [GL #3700] 6237. [bug] Address memory leaks due to not clearing OpenSSL error stack. [GL #4159] 6235. [doc] Clarify BIND 9 time formats. [GL #4266] 6234. [bug] Restore stale-refresh-time value after flushing the cache. [GL #4278] 6232. [bug] Following the introduction of krb5-subdomain-self-rhs and ms-subdomain-self-rhs update rules, removal of nonexistent PTR and SRV records via UPDATE could fail. [GL #4280] 6231. [func] Make nsupdate honor -v for SOA requests if the server is specified. [GL #1181] 6230. [bug] Prevent an unnecessary query restart if a synthesized CNAME target points to the CNAME owner. [GL #3835] 6227. [bug] Check the statistics-channel HTTP Content-length to prevent negative or overflowing values from causing a crash. [GL #4125] 6224. [bug] Check the If-Modified-Since value length to prevent out-of-bounds write. [GL #4124] --- 9.18.18 released --- 6220. [func] Deprecate the 'dialup' and 'heartbeat-interval' options. [GL #3700] 6219. [bug] Ignore 'max-zone-ttl' on 'dnssec-policy insecure'. [GL #4032] 6215. [protocol] Return REFUSED to GSS-API TKEY requests if GSS-API support is not configured. [GL #4225] 6213. [bug] Mark a primary server as temporarily unreachable if the TCP connection attempt times out. [GL #4215] 6212. [bug] Don't process detach and close netmgr events when the netmgr has been paused. [GL #4200] --- 9.18.17 released --- 6206. [bug] Add shutdown checks in dns_catz_dbupdate_callback() to avoid a race with dns_catz_shutdown_catzs(). [GL #4171] 6205. [bug] Restore support to read legacy HMAC-MD5 K file pairs. [GL #4154] 6204. [bug] Use NS records for relaxed QNAME-minimization mode. This reduces the number of queries named makes when resolving, as it allows the non-existence of NS RRsets at non-referral nodes to be cached in addition to the referrals that are normally cached. [GL #3325] 6200. [bug] Fix nslookup erroneously reporting a timeout when the input is delayed. [GL #4044] 6199. [bug] Improve HTTP Connection: header protocol conformance in the statistics channel. [GL #4126] 6198. [func] Remove the holes in the isc_result_t enum to compact the isc_result tables. [GL #4149] 6197. [bug] Fix a data race between the dns_zone and dns_catz modules when registering/unregistering a database update notification callback for a catalog zone. [GL #4132] 6196. [cleanup] Report "permission denied" instead of "unexpected error" when trying to update a zone file on a read-only file system. Thanks to Midnight Veil. [GL #4134] 6193. [bug] Fix a catz db update notification callback registration logic error, which could crash named when receiving an AXFR update for a catalog zone while the previous update process of the catalog zone was already running. [GL #4136] 6166. [func] Retry without DNS COOKIE on FORMERR if it appears that the FORMERR was due to the presence of a DNS COOKIE option. [GL #4049] /src/external/mpl/bind/dist/lib/dns/dyndb.c - 1.1.1.9 Wed Feb 21 21:54:51 UTC 2024 christos Import 9.16.33; last imported was 9.16.20 --- 9.16.33 released --- 5962. [security] Fix memory leak in EdDSA verify processing. (CVE-2022-38178) [GL #3487] 5961. [security] Fix memory leak in ECDSA verify processing. (CVE-2022-38177) [GL #3487] 5960. [security] Fix serve-stale crash that could happen when stale-answer-client-timeout was set to 0 and there was a stale CNAME in the cache for an incoming query. (CVE-2022-3080) [GL #3517] 5957. [security] Prevent excessive resource use while processing large delegations. (CVE-2022-2795) [GL #3394] 5956. [func] Make RRL code treat all QNAMEs that are subject to wildcard processing within a given zone as the same name. [GL #3459] 5955. [port] The libxml2 library has deprecated the usage of xmlInitThreads() and xmlCleanupThreads() functions. Use xmlInitParser() and xmlCleanupParser() instead. [GL #3518] 5954. [func] Fallback to IDNA2003 processing in dig when IDNA2008 conversion fails. [GL #3485] 5953. [bug] Fix a crash on shutdown in delete_trace_entry(). Add mctx attach/detach pair to make sure that the memory context used by a memory pool is not destroyed before the memory pool itself. [GL #3515] 5952. [bug] Use quotes around address strings in YAML output. [GL #3511] 5951. [bug] In some cases, the dnstap query_message field was erroneously set when logging response messages. [GL #3501] 5948. [bug] Fix nsec3.c:dns_nsec3_activex() function, add a missing dns_db_detachnode() call. [GL #3500] 5945. [bug] If parsing /etc/bind.key failed, delv could assert when trying to parse the built in trust anchors as the parser hadn't been reset. [GL !6468] 5942. [bug] Fix tkey.c:buildquery() function's error handling by adding the missing cleanup code. [GL #3492] 5941. [func] Zones with dnssec-policy now require dynamic DNS or inline-siging to be configured explicitly. [GL #3381] 5936. [bug] Don't enable serve-stale for lookups that error because it is a duplicate query or a query that would be dropped. [GL #2982] --- 9.16.32 released --- 5934. [func] Improve fetches-per-zone fetch limit logging to log the final allowed and spilled values of the fetch counters before the counter object gets destroyed. [GL #3461] 5933. [port] Automatically disable RSASHA1 and NSEC3RSASHA1 in named on Fedorda 33, Oracle Linux 9 and RHEL9 when they are disabled by the security policy. [GL #3469] 5932. [bug] Fix rndc dumpdb -expired and always include expired RRsets, not just for RBTDB_VIRTUAL time window. [GL #3462] 5929. [bug] The "max-zone-ttl" option in "dnssec-policy" was not fully effective; it was used for timing key rollovers but did not actually place an upper limit on TTLs when loading a zone. This has been corrected, and the documentation has been clarified to indicate that the old "max-zone-ttl" zone option is now ignored when "dnssec-policy" is in use. [GL #2918] 5924. [func] When it's necessary to use AXFR to respond to an IXFR request, a message explaining the reason is now logged at level info. [GL #2683] 5923. [bug] Fix inheritance for dnssec-policy when checking for inline-signing. [GL #3438] 5922. [bug] Forwarding of UPDATE message could fail with the introduction of netmgr. This has been fixed. [GL #3389] --- 9.16.31 released --- 5917. [bug] Update ifconfig.sh script as is miscomputed interface identifiers when destroying interfaces. [GL #3061] 5915. [bug] Detect missing closing brace (}) and computational overflows in $GENERATE directives. [GL #3429] 5913. [bug] Fix a race between resolver query timeout and validation in resolver.c:validated(). Remove resolver.c:maybe_destroy() as it is no loger needed. [GL #3398] 5909. [bug] The server-side destination port was missing from dnstap captures of client traffic. [GL #3309] 5905. [bug] When the TCP connection would be closed/reset between the connect/accept and the read, the uv_read_start() return value would be unexpected and cause an assertion failure. [GL #3400] 5903. [bug] When named checks that the OPCODE in a response matches that of the request, if there is a mismatch named logs an error. Some of those error messages incorrectly used RCODE instead of OPCODE to lookup the nemonic. This has been corrected. [GL !6420] --- 9.16.30 released --- 5899. [func] Don't try to process DNSSEC-related and ZONEMD records in catz. [GL #3380] 5890. [bug] When the fetches-per-server quota was adjusted because of an authoritative server timing out more or less frequently, it was incorrectly set to 1 rather than the intended value. This has been fixed. [GL #3327] 5888. [bug] Only write key files if the dnssec-policy keymgr has changed the metadata. [GL #3302] 5823. [func] Replace hazard pointers based lock-free list with locked-list based queue that's simpler and has no or little performance impact. [GL #3180] --- 9.16.29 released --- 5885. [bug] RPZ NSIP and NSDNAME rule processing didn't handle stub and static-stub zones at or above the query name. This has now been addressed. [GL #3232] 5881. [bug] dig +nssearch could hang in rare cases when recv_done() callback was being called earlier than send_done(). [GL #3278] 5880. [func] Add new named command-line option -C to print built-in defaults. [GL #1326] 5879. [contrib] dlz: Add FALLTHROUGH and UNREACHABLE macros. [GL #3306] 5874. [bug] keymgr didn't work with python 3.11. [GL !6157] 5866. [bug] Work around a jemalloc quirk which could trigger an out-of-memory condition in named over time. [GL #3287] 5863. [bug] If there was a pending negative cache DS entry, validations depending upon it could fail. [GL #3279] 5858. [bug] Don't remove CDS/CDNSKEY DELETE records on zone sign when using 'auto-dnssec maintain;'. [GL #2931] --- 9.16.28 released --- 5856. [bug] The "starting maxtime timer" message related to outgoing zone transfers was incorrectly logged at the ERROR level instead of DEBUG(1). [GL #3208] 5852. [func] Add new "reuseport" option to enable/disable load balancing of sockets. [GL #3249] 5843. [bug] When an UPDATE targets a zone that is not configured, the requested zone name is now logged in the "not authoritative" error message, so that it is easier to track down problematic update clients. [GL #3209] 5836. [bug] Quote the dns64 prefix in error messages that complain about problems with it, to avoid confusion with the following dns64 ACLs. [GL #3210] 5834. [cleanup] C99 variable-length arrays are difficult to use safely, so avoid them except in test code. [GL #3201] 5828. [bug] Replace single TCP write timer with per-TCP write timers. [GL #3200] 5824. [bug] Invalid dnssec-policy definitions were being accepted where the defined keys did not cover both KSK and ZSK roles for a given algorithm. This is now checked for and the dnssec-policy is rejected if both roles are not present for all algorithms in use. [GL #3142] --- 9.16.27 released --- 5818. [security] A synchronous call to closehandle_cb() caused isc__nm_process_sock_buffer() to be called recursively, which in turn left TCP connections hanging in the CLOSE_WAIT state blocking indefinitely when out-of-order processing was disabled. (CVE-2022-0396) [GL #3112] 5817. [security] The rules for acceptance of records into the cache have been tightened to prevent the possibility of poisoning if forwarders send records outside the configured bailiwick. (CVE-2021-25220) [GL #2950] 5816. [bug] Make BIND compile with LibreSSL 3.5.0, as it was using not very accurate pre-processor checks for using shims. [GL #3172] 5815. [bug] If an oversized key name of a specific length was used in the text form of an HTTP or SVBC record, an INSIST could be triggered when parsing it. [GL #3175] 5814. [bug] The RecursClients statistics counter could underflow in certain resolution scenarios. [GL #3147] 5811. [bug] Reimplement the maximum and idle timeouts for outgoing zone transfers. [GL #1897] 5807. [bug] Add a TCP "write" timer, and time out writing connections after the "tcp-idle-timeout" period has elapsed. [GL #3132] 5804. [func] Add a debug log message when starting and ending the task exclusive mode. [GL #3137] --- 9.16.26 released --- 5801. [bug] Log "quota reached" message when hard quota is reached when accepting a connection. [GL #3125] 5800. [func] Add ECS support to the DLZ interface. [GL #3082] 5797. [bug] A failed view configuration during a named reconfiguration procedure could cause inconsistencies in BIND internal structures, causing a crash or other unexpected errors. [GL #3060] 5795. [bug] rndc could crash when interrupted by a signal before receiving a response. [GL #3080] 5793. [bug] Correctly detect and enable UDP recvmmsg support in all versions of libuv that support it. [GL #3095] --- 9.16.25 released --- 5789. [bug] Allow replacing expired zone signatures with signatures created by the KSK. [GL #3049] 5788. [bug] An assertion could occur if a catalog zone event was scheduled while the task manager was being shut down. [GL #3074] 5787. [doc] Update 'auto-dnssec' documentation, it may only be activated at zone level. [GL #3023] 5786. [bug] Defer detaching from zone->raw in zone_shutdown() if the zone is in the process of being dumped to disk, to ensure that the unsigned serial number information is always written in the raw-format header of the signed version on an inline-signed zone. [GL #3071] 5785. [bug] named could leak memory when two dnssec-policy clauses had the same name. named failed to log this error. [GL #3085] 5776. [bug] Add a missing isc_condition_destroy() for nmsocket condition variable and add missing isc_mutex_destroy() for nmworker lock. [GL #3051] 5676. [func] Memory use in named was excessive. This has been addressed by: - Replacing locked memory pools with normal memory allocations. - Reducing the number of retained free items in unlocked memory pools. - Disabling the internal allocator by default. "named -M internal" turns it back on. [GL #2398] --- 9.16.24 released --- 5773. [func] Change the message when accepting TCP connection has failed to say "Accepting TCP connection failed" and change the log level for ISC_R_NOTCONNECTED, ISC_R_QUOTA and ISC_R_SOFTQUOTA results codes from ERROR to INFO. [GL #2700] 5768. [bug] dnssec-dsfromkey failed to omit revoked keys. [GL #853] 5764. [bug] dns_sdlz_putrr failed to process some valid resource records. [GL #3021] 5762. [bug] Fix a "named" crash related to removing and restoring a `catalog-zone` entry in the configuration file and running `rndc reconfig`. [GL #1608] 5758. [bug] mdig now honors the operating system's preferred ephemeral port range. [GL #2374] 5757. [test] Replace sed in nsupdate system test with awk to construct the nsupdate command. The sed expression was not reliably changing the ttl. [GL #3003] --- 9.16.23 released --- 5752. [bug] Fix an assertion failure caused by missing member zones during a reload of a catalog zone. [GL #2308] 5750. [bug] Fix a bug when comparing two RSA keys. There was a typo which caused the "p" prime factors to not being compared. [GL #2972] 5737. [bug] Address Coverity warning in lib/dns/dnssec.c. [GL #2935] --- 9.16.22 released --- 5736. [security] The "lame-ttl" option is now forcibly set to 0. This effectively disables the lame server cache, as it could previously be abused by an attacker to significantly degrade resolver performance. (CVE-2021-25219) [GL #2899] 5724. [bug] Address a potential deadlock when checking zone content consistency. [GL #2908] 5723. [bug] Change 5709 broke backward compatibility for the "check-names master ..." and "check-names slave ..." options. This has been fixed. [GL #2911] 5720. [contrib] Old-style DLZ drivers that had to be enabled at build-time have been marked as deprecated. [GL #2814] 5719. [func] The "map" zone file format has been marked as deprecated. [GL #2882] 5717. [func] The "cache-file" option, which was documented as "for testing purposes only" and not to be used, has been removed. [GL #2903] 5716. [bug] Multiple library names were mistakenly passed to the krb5-config utility when ./configure was invoked with the --with-gssapi=[/path/to/]krb5-config option. This has been fixed by invoking krb5-config separately for each required library. [GL #2866] 5715. [func] Add a check for ports specified in "*-source(-v6)" options clashing with a global listening port. Such a configuration was already unsupported, but it failed silently; it is now treated as an error. [GL #2888] 5714. [bug] Remove the "adjust interface" mechanism which was responsible for setting up listeners on interfaces when the "*-source(-v6)" address and port were the same as the "listen-on(-v6)" address and port. Such a configuration is no longer supported; under certain timing conditions, that mechanism could prevent named from listening on some TCP ports. This has been fixed. [GL #2852] 5712. [doc] Add deprecation notice about removing native PKCS#11 support in the next major BIND 9 release. [GL #2691] --- 9.16.21 released --- 5711. [bug] "map" files exceeding 2GB in size failed to load due to a size comparison that incorrectly treated the file size as a signed integer. [GL #2878] 5710. [port] win32: incorrect parentheses resulted in the wrong sizeof() tests being used to pick the appropriate Windows atomic operations for the object's size. [GL #2891] 5709. [cleanup] Enum values throughout the code have been updated to use the terms "primary" and "secondary" instead of "master" and "slave", respectively. [GL #1944] 5708. [bug] The thread-local isc_tid_v variable was not properly initialized when running BIND 9 as a Windows Service, leading to a crash on startup. [GL #2837] 5705. [bug] Change #5686 altered the internal memory structure of zone databases, but neglected to update the MAPAPI value for zone files in "map" format. This caused named to attempt to load incompatible map files, triggering an assertion failure on startup. The MAPAPI value has now been updated, so named rejects outdated files when encountering them. [GL #2872] 5704. [bug] Change #5317 caused the EDNS TCP Keepalive option to be ignored inadvertently in client requests. It has now been fixed and this option is handled properly again. [GL #1927] 5701. [bug] named-checkconf failed to detect syntactically invalid values of the "key" and "tls" parameters used to define members of remote server lists. [GL #2461] 5700. [bug] When a member zone was removed from a catalog zone, journal files for the former were not deleted. [GL #2842] 5699. [func] Data structures holding DNSSEC signing statistics are now grown and shrunk as necessary upon key rollover events. [GL #1721] 5698. [bug] When a DNSSEC-signed zone which only has a single signing key available is migrated to use KASP, that key is now treated as a Combined Signing Key (CSK). [GL #2857] 5696. [protocol] Support for HTTPS and SVCB record types has been added. (This does not include ADDITIONAL section processing for these record types, only basic support for RR type parsing and printing.) [GL #1132] 5694. [bug] Stale data in the cache could cause named to send non-minimized queries despite QNAME minimization being enabled. [GL #2665] 5691. [bug] When a dynamic zone was made available in another view using the "in-view" statement, running "rndc freeze" always reported an "already frozen" error even though the zone was successfully frozen. [GL #2844] 5690. [func] dnssec-signzone now honors Predecessor and Successor metadata found in private key files: if a signature for an RRset generated by the inactive predecessor exists and does not need to be replaced, no additional signature is now created for that RRset using the successor key. This enables dnssec-signzone to gradually replace RRSIGs during a ZSK rollover. [GL #1551] /src/external/mpl/bind/dist/lib/dns/dyndb.c - 1.1.1.8 Fri Sep 23 00:09:17 UTC 2022 christos Import bind-9.16.20 --- 9.16.20 released --- 5689. [security] An assertion failure occurred when named attempted to send a UDP packet that exceeded the MTU size, if Response Rate Limiting (RRL) was enabled. (CVE-2021-25218) [GL #2856] 5688. [bug] Zones using KASP and inline-signed zones failed to apply changes from the unsigned zone to the signed zone under certain circumstances. This has been fixed. [GL #2735] 5687. [bug] "rndc reload <zonename>" could trigger a redundant reload for an inline-signed zone whose zone file was not modified since the last "rndc reload". This has been fixed. [GL #2855] 5686. [func] The number of internal data structures allocated for each zone was reduced. [GL #2829] 5685. [bug] named failed to check the opcode of responses when performing zone refreshes, stub zone updates, and UPDATE forwarding. This has been fixed. [GL #2762] 5682. [bug] Some changes to "zone-statistics" settings were not properly processed by "rndc reconfig". This has been fixed. [GL #2820] 5681. [func] Relax the checks in the dns_zone_cdscheck() function to allow CDS and CDNSKEY records in the zone that do not match an existing DNSKEY record, as long as the algorithm matches. This allows a clean rollover from one provider to another in a multi-signer DNSSEC configuration. [GL #2710] 5679. [func] Thread affinity is no longer set. [GL #2822] 5678. [bug] The "check DS" code failed to release all resources upon named shutdown when a refresh was in progress. This has been fixed. [GL #2811] 5672. [bug] Authentication of rndc messages could fail if a "controls" statement was configured with multiple key algorithms for the same listener. This has been fixed. [GL #2756] --- 9.16.19 released --- 5671. [bug] A race condition could occur where two threads were competing for the same set of key file locks, leading to a deadlock. This has been fixed. [GL #2786] 5670. [bug] create_keydata() created an invalid placeholder keydata record upon a refresh failure, which prevented the database of managed keys from subsequently being read back. This has been fixed. [GL #2686] 5669. [func] KASP support was extended with the "check DS" feature. Zones with "dnssec-policy" and "parental-agents" configured now check for DS presence and can perform automatic KSK rollovers. [GL #1126] 5668. [bug] Rescheduling a setnsec3param() task when a zone failed to load on startup caused a hang on shutdown. This has been fixed. [GL #2791] 5667. [bug] The configuration-checking code failed to account for the inheritance rules of the "dnssec-policy" option. This has been fixed. [GL #2780] 5666. [doc] The safe "edns-udp-size" value was tweaked to match the probing value from BIND 9.16 for better compatibility. [GL #2183] 5665. [bug] If nsupdate sends an SOA request and receives a REFUSED response, it now fails over to the next available server. [GL #2758] 5664. [func] For UDP messages larger than the path MTU, named now sends an empty response with the TC (TrunCated) bit set. In addition, setting the DF (Don't Fragment) flag on outgoing UDP sockets was re-enabled. [GL #2790] 5662. [bug] Views with recursion disabled are now configured with a default cache size of 2 MB unless "max-cache-size" is explicitly set. This prevents cache RBT hash tables from being needlessly preallocated for such views. [GL #2777] 5661. [bug] Change 5644 inadvertently introduced a deadlock: when locking the key file mutex for each zone structure in a different view, the "in-view" logic was not considered. This has been fixed. [GL #2783] 5658. [bug] Increasing "max-cache-size" for a running named instance (using "rndc reconfig") did not cause the hash tables used by cache databases to be grown accordingly. This has been fixed. [GL #2770] 5655. [bug] Signed, insecure delegation responses prepared by named either lacked the necessary NSEC records or contained duplicate NSEC records when both wildcard expansion and CNAME chaining were required to prepare the response. This has been fixed. [GL #2759] 5653. [bug] A bug that caused the NSEC3 salt to be changed on every restart for zones using KASP has been fixed. [GL #2725] --- 9.16.18 released --- 5660. [bug] The configuration-checking code failed to account for the inheritance rules of the "key-directory" option. [GL #2778] 5659. [bug] When preparing DNS responses, named could replace the letters 'W' (uppercase) and 'w' (lowercase) with '\000'. This has been fixed. [GL #2779] --- 9.16.17 released --- 5652. [bug] A copy-and-paste error in change 5584 caused the IP_DONTFRAG socket option to be enabled instead of disabled. This has been fixed. [GL #2746] 5651. [func] Refactor zone dumping to be processed asynchronously via the uv_work_t thread pool API. [GL #2732] 5650. [bug] Prevent a crash that could occur if serve-stale was enabled and a prefetch was triggered during a query restart. [GL #2733] 5649. [bug] If a query was answered with stale data on a server with DNS64 enabled, an assertion could occur if a non-stale answer arrived afterward. [GL #2731] 5648. [bug] The calculation of the estimated IXFR transaction size in dns_journal_iter_init() was invalid. [GL #2685] 5644. [bug] Fix a race condition in reading and writing key files for zones using KASP and configured in multiple views. [GL #1875] 5643. [cleanup] "make install" no longer creates an empty ${localstatedir}/run directory. [GL #2709] 5642. [bug] Zones which are configured in multiple views with different values set for "dnssec-policy" and with identical values set for "key-directory" are now detected and treated as a configuration error. [GL #2463] 5641. [bug] Address a potential memory leak in dst_key_fromnamedfile(). [GL #2689] 5639. [bug] Check that the first and last SOA record of an AXFR are consistent. [GL #2528] 5638. [bug] Improvements related to network manager/task manager integration: - isc_managers_create() and isc_managers_destroy() functions were added to handle setup and teardown of netmgr, taskmgr, timermgr, and socketmgr, since these require a precise order of operations now. - Event queue processing is now quantized to prevent infinite looping. - The netmgr can now be paused from within a netmgr thread. - Deadlocks due to a conflict between netmgr's pause/resume and listen/stoplistening operations were fixed. [GL #2654] 5633. [doc] The "inline-signing" option was incorrectly described as being inherited from the "options"/"view" levels and was incorrectly accepted at those levels without effect. This has been fixed. [GL #2536] 5624. [func] Task manager events are now processed inside network manager loops. The task manager no longer needs its own set of worker threads, which improves resolver performance. [GL #2638] --- 9.16.16 released --- 5637. [func] Change the default value of the "max-ixfr-ratio" option to "unlimited". [GL #2671] 5636. [bug] named and named-checkconf did not report an error when multiple zones with the "dnssec-policy" option set were using the same zone file. This has been fixed. [GL #2603] 5635. [bug] Journal compaction could fail when a journal with invalid transaction headers was not detected at startup. This has been fixed. [GL #2670] 5634. [bug] If "dnssec-policy" was active and a private key file was temporarily offline during a rekey event, named could incorrectly introduce replacement keys and break a signed zone. This has been fixed. [GL #2596] 5633. [doc] The "inline-signing" option was incorrectly described as being inherited from the "options"/"view" levels and was incorrectly accepted at those levels without effect. This has been fixed. [GL #2536] 5632. [func] Add a new built-in KASP, "insecure", which is used to transition a zone from a signed to an unsigned state. The existing built-in KASP "none" should no longer be used to unsign a zone. [GL #2645] 5631. [protocol] Update the implementation of the ZONEMD RR type to match RFC 8976. [GL #2658] 5630. [func] Treat DNSSEC responses containing NSEC3 records with iteration counts greater than 150 as insecure. [GL #2445] 5629. [func] Reduce the maximum supported number of NSEC3 iterations that can be configured for a zone to 150. [GL #2642] 5627. [bug] RRSIG(SOA) RRsets placed anywhere other than at the zone apex were triggering infinite resigning loops. This has been fixed. [GL #2650] 5626. [bug] When generating zone signing keys, KASP now also checks for key ID conflicts among newly created keys, rather than just between new and existing ones. [GL #2628] 5625. [bug] A deadlock could occur when multiple "rndc addzone", "rndc delzone", and/or "rndc modzone" commands were invoked simultaneously for different zones. This has been fixed. [GL #2626] 5622. [cleanup] The lib/samples/ directory has been removed, as export versions of libraries are no longer maintained. [GL !4835] 5619. [protocol] Implement draft-vandijk-dnsop-nsec-ttl, updating the protocol such that NSEC(3) TTL values are set to the minimum of the SOA MINIMUM value or the SOA TTL. [GL #2347] 5618. [bug] Change 5149 introduced some inconsistencies in the way record TTLs were presented in cache dumps. These inconsistencies have been eliminated. [GL #389] [GL #2289] /src/external/mpl/bind/dist/lib/dns/dyndb.c - 1.1.1.7 Thu Aug 19 11:45:23 UTC 2021 christos --- 9.16.12 released --- 5578. [protocol] Make "check-names" accept A records below "_spf", "_spf_rate", and "_spf_verify" labels in order to cater for the "exists" SPF mechanism specified in RFC 7208 section 5.7 and appendix D.1. [GL #2377] 5577. [bug] Fix the "three is a crowd" key rollover bug in KASP by correctly implementing Equation (2) of the "Flexible and Robust Key Rollover" paper. [GL #2375] 5575. [bug] When migrating to KASP, BIND 9 considered keys with the "Inactive" and/or "Delete" timing metadata to be possible active keys. This has been fixed. [GL #2406] 5572. [bug] Address potential double free in generatexml(). [GL #2420] 5571. [bug] named failed to start when its configuration included a zone with a non-builtin "allow-update" ACL attached. [GL #2413] 5570. [bug] Improve performance of the DNSSEC verification code by reducing the number of repeated calls to dns_dnssec_keyfromrdata(). [GL #2073] 5569. [bug] Emit useful error message when "rndc retransfer" is applied to a zone of inappropriate type. [GL #2342] 5568. [bug] Fixed a crash in "dnssec-keyfromlabel" when using ECDSA keys. [GL #2178] 5567. [bug] Dig now reports unknown dash options while pre-parsing the options. This prevents "-multi" instead of "+multi" from reporting memory usage before ending option parsing with "Invalid option: -lti". [GL #2403] 5566. [func] Add "stale-answer-client-timeout" option, which is the amount of time a recursive resolver waits before attempting to answer the query using stale data from cache. [GL #2247] 5565. [func] The SONAMEs for BIND 9 libraries now include the current BIND 9 version number, in an effort to tightly couple internal libraries with a specific release. [GL #2387] 5562. [security] Fix off-by-one bug in ISC SPNEGO implementation. (CVE-2020-8625) [GL #2354] 5561. [bug] KASP incorrectly set signature validity to the value of the DNSKEY signature validity. This is now fixed. [GL #2383] 5560. [func] The default value of "max-stale-ttl" has been changed from 12 hours to 1 day and the default value of "stale-answer-ttl" has been changed from 1 second to 30 seconds, following RFC 8767 recommendations. [GL #2248] 5456. [func] Added "primaries" as a synonym for "masters" in named.conf, and "primary-only" as a synonym for "master-only" in the parameters to "notify", to bring terminology up-to-date with RFC 8499. [GL #1948] 5362. [func] Limit the size of IXFR responses so that AXFR will be used instead if it would be smaller. This is controlled by the "max-ixfr-ratio" option, which is a percentage representing the ratio of IXFR size to the size of the entire zone. This value cannot exceed 100%, which is the default. [GL #1515] --- 9.16.11 released --- 5559. [bug] The --with-maxminddb=PATH form of the build-time option enabling support for libmaxminddb was not working correctly. This has been fixed. [GL #2366] 5557. [bug] Prevent RBTDB instances from being destroyed by multiple threads at the same time. [GL #2317] 5556. [bug] Further tweak newline printing in dnssec-signzone and dnssec-verify. [GL #2359] 5555. [bug] server->reload_status was not properly initialized. [GL #2361] 5554. [bug] dnssec-signzone and dnssec-verify were missing newlines between log messages. [GL #2359] 5553. [bug] When reconfiguring named, removing "auto-dnssec" did not turn off DNSSEC maintenance. [GL #2341] 5552. [func] When switching to "dnssec-policy none;", named now permits a safe transition to insecure mode and publishes the CDS and CDNSKEY DELETE records, as described in RFC 8078. [GL #1750] 5551. [bug] named no longer attempts to assign threads to CPUs outside the CPU affinity set. Thanks to Ole Bjørn Hessen. [GL #2245] 5550. [func] dnssec-signzone and named now log a warning when falling back to the "increment" SOA serial method. [GL #2058] 5545. [func] OS support for load-balanced sockets is no longer required to receive incoming queries in multiple netmgr threads. [GL #2137] 5543. [bug] Fix UDP performance issues caused by making netmgr callbacks asynchronous-only. [GL #2320] 5542. [bug] Refactor netmgr. [GL #1920] [GL #2034] [GL #2061] [GL #2194] [GL #2221] [GL #2266] [GL #2283] [GL #2318] [GL #2321] --- 9.16.10 released --- 5544. [func] Restore the default value of "nocookie-udp-size" to 4096 bytes. [GL #2250] 5541. [func] Adjust the "max-recursion-queries" default from 75 to 100. [GL #2305] 5540. [port] Fix building with native PKCS#11 support for AEP Keyper. [GL #2315] 5539. [bug] Tighten handling of missing DNS COOKIE responses over UDP by falling back to TCP. [GL #2275] 5538. [func] Add NSEC3 support to KASP. A new option for "dnssec-policy", "nsec3param", can be used to set the desired NSEC3 parameters. NSEC3 salt collisions are automatically prevented during resalting. Salt generation is now logged with zone context. [GL #1620] 5534. [bug] The CNAME synthesized from a DNAME was incorrectly followed when the QTYPE was CNAME or ANY. [GL #2280] --- 9.16.9 released --- 5533. [func] Add the "stale-refresh-time" option, a time window that starts after a failed lookup, during which a stale RRset is served directly from cache before a new attempt to refresh it is made. [GL #2066] 5530. [bug] dnstap did not capture responses to forwarded UPDATE requests. [GL #2252] 5527. [bug] A NULL pointer dereference occurred when creating an NTA recheck query failed. [GL #2244] 5525. [bug] Change 5503 inadvertently broke cross-compilation by replacing a call to AC_LINK_IFELSE() with a call to AC_RUN_IFELSE() in configure.ac. This has been fixed, making cross-compilation possible again. [GL #2237] 5523. [bug] The initial lookup in a zone transitioning to/from a signed state could fail if the DNSKEY RRset was not found. [GL #2236] 5522. [bug] Fixed a race/NULL dereference in TCPDNS send. [GL #2227] 5520. [bug] Fixed a number of shutdown races, reference counting errors, and spurious log messages that could occur in the network manager. [GL #2221] 5518. [bug] Stub zones now work correctly with primary servers using "minimal-responses yes". [GL #1736] 5517. [bug] Do not treat UV_EOF as a TCP4RecvErr or a TCP6RecvErr. [GL #2208] --- 9.16.8 released --- 5516. [func] The default EDNS buffer size has been changed from 4096 to 1232 bytes. [GL #2183] 5515. [func] Add 'rndc dnssec -rollover' command to trigger a manual rollover for a specific key. [GL #1749] 5514. [bug] Fix KASP expected key size for Ed25519 and Ed448. [GL #2171] 5513. [doc] The ARM section describing the "rrset-order" statement was rewritten to make it unambiguous and up-to-date with the source code. [GL #2139] 5512. [bug] "rrset-order" rules using "order none" were causing named to crash despite named-checkconf treating them as valid. [GL #2139] 5511. [bug] 'dig -u +yaml' failed to display timestamps to the microsecond. [GL #2190] 5510. [bug] Implement the attach/detach semantics for dns_message_t to fix a data race in accessing an already-destroyed fctx->rmessage. [GL #2124] 5509. [bug] filter-aaaa: named crashed upon shutdown if it was in the process of recursing for A RRsets. [GL #1040] 5508. [func] Added new parameter "-expired" for "rndc dumpdb" that also prints expired RRsets (awaiting cleanup) to the dump file. [GL #1870] 5507. [bug] Named could compute incorrect SIG(0) responses. [GL #2109] 5506. [bug] Properly handle failed sysconf() calls, so we don't report invalid memory size. [GL #2166] 5505. [bug] Updating contents of a mixed-case RPZ could cause some rules to be ignored. [GL #2169] 5503. [bug] Cleaned up reference counting of network manager handles, now using isc_nmhandle_attach() and _detach() instead of _ref() and _unref(). [GL #2122] --- 9.16.7 released --- 5501. [func] Log CDS/CDNSKEY publication. [GL #1748] 5500. [bug] Fix (non-)publication of CDS and CDNSKEY records. [GL #2103] 5499. [func] Add '-P ds' and '-D ds' arguments to dnssec-settime. [GL #1748] 5497. [bug] 'dig +bufsize=0' failed to disable EDNS. [GL #2054] 5496. [bug] Address a TSAN report by ensuring each rate limiter object holds a reference to its task. [GL #2081] 5495. [bug] With query minimization enabled, named failed to resolve ip6.arpa. names that had extra labels to the left of the IPv6 part. [GL #1847] 5494. [bug] Silence the EPROTO syslog message on older systems. [GL #1928] 5493. [bug] Fix off-by-one error when calculating new hash table size. [GL #2104] 5492. [bug] Tighten LOC parsing to reject a period (".") and/or "m" as a value. Fix handling of negative altitudes which are not whole meters. [GL #2074] 5491. [bug] rbtversion->glue_table_size could be read without the appropriate lock being held. [GL #2080] 5489. [bug] Named erroneously accepted certain invalid resource records that were incorrectly processed after subsequently being written to disk and loaded back, as the wire format differed. Such records include: CERT, IPSECKEY, NSEC3, NSEC3PARAM, NXT, SIG, TLSA, WKS, and X25. [GL !3953] 5488. [bug] NTA code needed to have a weak reference on its associated view to prevent the latter from being deleted while NTA tests were being performed. [GL #2067] 5486. [func] Add 'rndc dnssec -checkds' command, which signals to named that the DS record for a given zone or key has been updated in the parent zone. [GL #1613] --- 9.16.6 released --- 5484. [func] Expire zero TTL records quickly rather than using them for stale answers. [GL #1829] 5483. [func] A new configuration option "stale-cache-enable" has been introduced to enable or disable keeping stale answers in cache. [GL #1712] 5482. [bug] If the Duplicate Address Detection (DAD) mechanism had not yet finished after adding a new IPv6 address to the system, BIND 9 would fail to bind to IPv6 addresses in a tentative state. [GL #2038] 5481. [security] "update-policy" rules of type "subdomain" were incorrectly treated as "zonesub" rules, which allowed keys used in "subdomain" rules to update names outside of the specified subdomains. The problem was fixed by making sure "subdomain" rules are again processed as described in the ARM. (CVE-2020-8624) [GL #2055] 5480. [security] When BIND 9 was compiled with native PKCS#11 support, it was possible to trigger an assertion failure in code determining the number of bits in the PKCS#11 RSA public key with a specially crafted packet. (CVE-2020-8623) [GL #2037] 5479. [security] named could crash in certain query resolution scenarios where QNAME minimization and forwarding were both enabled. (CVE-2020-8621) [GL #1997] 5478. [security] It was possible to trigger an assertion failure by sending a specially crafted large TCP DNS message. (CVE-2020-8620) [GL #1996] 5477. [bug] The idle timeout for connected TCP sockets, which was previously set to a high fixed value, is now derived from the client query processing timeout configured for a resolver. [GL #2024] 5476. [security] It was possible to trigger an assertion failure when verifying the response to a TSIG-signed request. (CVE-2020-8622) [GL #2028] 5475. [bug] Wildcard RPZ passthru rules could incorrectly be overridden by other rules that were loaded from RPZ zones which appeared later in the "response-policy" statement. This has been fixed. [GL #1619] 5474. [bug] dns_rdata_hip_next() failed to return ISC_R_NOMORE when it should have. [GL !3880] 5473. [func] The RBT hash table implementation has been changed to use a faster hash function (HalfSipHash2-4) and Fibonacci hashing for better distribution. Setting "max-cache-size" now preallocates a fixed-size hash table so that rehashing does not cause resolution brownouts while the hash table is grown. [GL #1775] 5471. [bug] The introduction of KASP support inadvertently caused the second field of "sig-validity-interval" to always be calculated in hours, even in cases when it should have been calculated in days. This has been fixed. (Thanks to Tony Finch.) [GL !3735] 5469. [port] On illumos, a constant called SEC is already defined in <sys/time.h>, which conflicts with an identically named constant in libbind9. This conflict has been resolved. [GL #1993] 5468. [bug] Addressed potential double unlock in process_fd(). [GL #2005] 5466. [bug] Addressed an error in recursive clients stats reporting. [GL #1719] 5465. [func] Added fallback to built-in trust-anchors, managed-keys, or trusted-keys if the bindkeys-file (bind.keys) cannot be parsed. [GL #1235] 5464. [bug] Requesting more than 128 files to be saved when rolling dnstap log files caused a buffer overflow. This has been fixed. [GL #1989] 5462. [bug] Move LMDB locking from LMDB itself to named. [GL #1976] 5461. [bug] The STALE rdataset header attribute was updated while the write lock was not being held, leading to incorrect statistics. The header attributes are now converted to use atomic operations. [GL #1475] /src/external/mpl/bind/dist/lib/dns/dyndb.c - 1.1.1.6 Fri Feb 19 16:37:12 UTC 2021 christos --- 9.16.5 released --- 5458. [bug] Prevent a theoretically possible NULL dereference caused by a data race between zone_maintenance() and dns_zone_setview_helper(). [GL #1627] 5455. [bug] named could crash when cleaning dead nodes in lib/dns/rbtdb.c that were being reused. [GL #1968] 5454. [bug] Address a startup crash that occurred when the server was under load and the root zone had not yet been loaded. [GL #1862] 5453. [bug] named crashed on shutdown when a new rndc connection was received during shutdown. [GL #1747] 5452. [bug] The "blackhole" ACL was accidentally disabled for client queries. [GL #1936] 5451. [func] Add 'rndc dnssec -status' command. [GL #1612] 5449. [bug] Fix a socket shutdown race in netmgr udp. [GL #1938] 5448. [bug] Fix a race condition in isc__nm_tcpdns_send(). [GL #1937] 5447. [bug] IPv6 addresses ending in "::" could break YAML parsing. A "0" is now appended to such addresses in YAML output from dig, mdig, delv, and dnstap-read. [GL #1952] 5446. [bug] The validator could fail to accept a properly signed RRset if an unsupported algorithm appeared earlier in the DNSKEY RRset than a supported algorithm. It could also stop if it detected a malformed public key. [GL #1689] 5444. [bug] 'rndc dnstap -roll <value>' did not limit the number of saved files to <value>. [GL !3728] 5443. [bug] The "primary" and "secondary" keywords, when used as parameters for "check-names", were not processed correctly and were being ignored. [GL #1949] 5441. [bug] ${LMDB_CFLAGS} was missing from make/includes.in. [GL #1955] 5440. [test] Properly handle missing kyua. [GL #1950] 5439. [bug] The DS RRset returned by dns_keynode_dsset() was used in a non-thread-safe manner. [GL #1926] --- 9.16.4 released --- 5438. [bug] Fix a race in TCP accepting code. [GL #1930] 5437. [bug] Fix a data race in lib/dns/resolver.c:log_formerr(). [GL #1808] 5436. [security] It was possible to trigger an INSIST when determining whether a record would fit into a TCP message buffer. (CVE-2020-8618) [GL #1850] 5435. [tests] Add RFC 4592 responses examples to the wildcard system test. [GL #1718] 5434. [security] It was possible to trigger an INSIST in lib/dns/rbtdb.c:new_reference() with a particular zone content and query patterns. (CVE-2020-8619) [GL #1111] [GL #1718] 5431. [func] Reject DS records at the zone apex when loading master files. Log but otherwise ignore attempts to add DS records at the zone apex via UPDATE. [GL #1798] 5430. [doc] Update docs - with netmgr, a separate listening socket is created for each IPv6 interface (just as with IPv4). [GL #1782] 5428. [bug] Clean up GSSAPI resources in nsupdate only after taskmgr has been destroyed. Thanks to Petr Menšík. [GL !3316] 5426. [bug] Don't abort() when setting SO_INCOMING_CPU on the socket fails. [GL #1911] 5425. [func] The default value of "max-stale-ttl" has been changed from 1 week to 12 hours. [GL #1877] 5424. [bug] With KASP, when creating a successor key, the "goal" state of the current active key (predecessor) was not changed and thus never removed from the zone. [GL #1846] 5423. [bug] Fix a bug in keymgr_key_has_successor(): it incorrectly returned true if any other key in the keyring had a successor. [GL #1845] 5422. [bug] When using dnssec-policy, print correct key timing metadata. [GL #1843] 5421. [bug] Fix a race that could cause named to crash when looking up the nodename of an RBT node if the tree was modified. [GL #1857] 5420. [bug] Add missing isc_{mutex,conditional}_destroy() calls that caused a memory leak on FreeBSD. [GL #1893] 5418. [bug] delv failed to parse deprecated trusted-keys-style trust anchors. [GL #1860] 5416. [bug] Fix a lock order inversion in lib/isc/unix/socket.c. [GL #1859] 5415. [test] Address race in dnssec system test that led to test failures. [GL #1852] 5414. [test] Adjust time allowed for journal truncation to occur in nsupdate system test to avoid test failure. [GL #1855] 5413. [test] Address race in autosign system test that led to test failures. [GL #1852] 5412. [bug] 'provide-ixfr no;' failed to return up-to-date responses when the serial was greater than or equal to the current serial. [GL #1714] 5411. [cleanup] TCP accept code has been refactored to use a single accept() and pass the accepted socket to child threads for processing. [GL !3320] 5409. [performance] When looking up NSEC3 data in a zone database, skip the check for empty non-terminal nodes; the NSEC3 tree does not have any. [GL #1834] 5408. [protocol] Print Extended DNS Errors if present in OPT record. [GL #1835] 5407. [func] Zone timers are now exported via statistics channel. Thanks to Paul Frieden, Verizon Media. [GL #1232] 5405. [bug] 'named-checkconf -p' could include spurious text in server-addresses statements due to an uninitialized DSCP value. [GL #1812] /src/external/mpl/bind/dist/lib/dns/dyndb.c - 1.1.1.5 Mon Aug 03 17:07:10 UTC 2020 christos