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Merge tag 'v9.20.18' into bind-9.20

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Nicki Křížek 2026-01-21 14:37:29 +00:00
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1
doc/arm/changelog.rst
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@ -18,6 +18,7 @@ Changelog
development. Regular users should refer to :ref:`Release Notes <relnotes>`
for changes relevant to them.
.. include:: ../changelog/changelog-9.20.18.rst
.. include:: ../changelog/changelog-9.20.17.rst
.. include:: ../changelog/changelog-9.20.16.rst
.. include:: ../changelog/changelog-9.20.15.rst

1
doc/arm/notes.rst
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@ -45,6 +45,7 @@ The list of known issues affecting the latest version in the 9.20 branch can be
found at
https://gitlab.isc.org/isc-projects/bind9/-/wikis/Known-Issues-in-BIND-9.20
.. include:: ../notes/notes-9.20.18.rst
.. include:: ../notes/notes-9.20.17.rst
.. include:: ../notes/notes-9.20.16.rst
.. include:: ../notes/notes-9.20.15.rst

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doc/changelog/changelog-9.20.18.rst Normal file
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@ -0,0 +1,105 @@
.. Copyright (C) Internet Systems Consortium, Inc. ("ISC")
..
.. SPDX-License-Identifier: MPL-2.0
..
.. This Source Code Form is subject to the terms of the Mozilla Public
.. License, v. 2.0. If a copy of the MPL was not distributed with this
.. file, you can obtain one at https://mozilla.org/MPL/2.0/.
..
.. See the COPYRIGHT file distributed with this work for additional
.. information regarding copyright ownership.
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 :iscman:`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`

87
doc/notes/notes-9.20.18.rst Normal file
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@ -0,0 +1,87 @@
.. Copyright (C) Internet Systems Consortium, Inc. ("ISC")
..
.. SPDX-License-Identifier: MPL-2.0
..
.. This Source Code Form is subject to the terms of the Mozilla Public
.. License, v. 2.0. If a copy of the MPL was not distributed with this
.. file, you can obtain one at https://mozilla.org/MPL/2.0/.
..
.. See the COPYRIGHT file distributed with this work for additional
.. information regarding copyright ownership.
Notes for BIND 9.20.18
----------------------
Security Fixes
~~~~~~~~~~~~~~
- Fix incorrect length checks for BRID and HHIT records.
:cve:`2025-13878`
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
~~~~~~~~~~~~~~~
- Add more information to the :option:`rndc recursing` output about
fetches.
This adds more information about active fetches, for debugging and
diagnostic purposes. :gl:`!11305`
Bug Fixes
~~~~~~~~~
- Make DNSSEC key rollovers more robust.
A manual rollover when the zone was in an invalid DNSSEC state caused
predecessor keys to be removed too quickly. Additional safeguards to
prevent this have been added: DNSSEC records are not removed from the
zone until the underlying state machine has moved back into a valid
DNSSEC state. :gl:`#5458`
- Fix a catalog zone issue, where member zones could fail to load.
A catalog zone member zone could fail to load in some rare cases, when
the internally generated zone configuration string exceeded 512 bytes.
That condition by itself was not enough for the issue to arise, but it
was necessary. This could happen if, for example, the catalog zone's
default primary servers list contained a large number of items. This
has been fixed. :gl:`#5658`
- Allow glue in delegations with QTYPE=ANY.
When a query for type ANY triggered a delegation response, all
additional data was omitted from the response, including mandatory
glue. This has been fixed. :gl:`#5659`
- Fix slow speed when signing a large delegation zone with NSEC3
opt-out.
BIND 9.20+ took much longer signing a large delegation zone with NSEC3
opt-out compared to version 9.18. This has been fixed. :gl:`#5672`
- Reconfiguring an NSEC3 opt-out zone to NSEC caused the zone to be
invalid.
A zone that was signed with NSEC3, had opt-out enabled, and was then
reconfigured to use NSEC, was published with missing NSEC records.
This has been fixed. :gl:`#5679`
- Fix a possible catalog zone issue during reconfiguration.
The :iscman:`named` process could terminate unexpectedly during
reconfiguration when a catalog zone update was taking place at the
same time. This has been fixed. :gl:`!11366`
- Fix the charts in the statistics channel.
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:`!11018`

2
lib/dns/rdata/generic/brid_68.c
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@ -84,7 +84,7 @@ fromwire_brid(ARGS_FROMWIRE) {
static isc_result_t
towire_brid(ARGS_TOWIRE) {
REQUIRE(rdata->type == dns_rdatatype_brid);
REQUIRE(rdata->length >= 3);
REQUIRE(rdata->length > 0);
UNUSED(cctx);

2
lib/dns/rdata/generic/hhit_67.c
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@ -84,7 +84,7 @@ fromwire_hhit(ARGS_FROMWIRE) {
static isc_result_t
towire_hhit(ARGS_TOWIRE) {
REQUIRE(rdata->type == dns_rdatatype_hhit);
REQUIRE(rdata->length >= 3);
REQUIRE(rdata->length > 0);
UNUSED(cctx);