1e75f3ae33
The new :cve: Sphinx role takes a CVE number as an argument and creates
a hyperlink to the relevant ISC Knowledgebase document that might have
more up-to-date or verbose information than the relevant release note.
This makes reaching ISC Knowledgebase pages directly from the release
notes easier.
Make all CVE references in the release notes use the new Sphinx role.
(cherry picked from commit 41b857e567)
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81 lines
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.. Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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..
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.. SPDX-License-Identifier: MPL-2.0
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..
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.. This Source Code Form is subject to the terms of the Mozilla Public
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.. License, v. 2.0. If a copy of the MPL was not distributed with this
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.. file, you can obtain one at https://mozilla.org/MPL/2.0/.
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..
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.. See the COPYRIGHT file distributed with this work for additional
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.. information regarding copyright ownership.
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Notes for BIND 9.16.37
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----------------------
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Security Fixes
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~~~~~~~~~~~~~~
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- An UPDATE message flood could cause :iscman:`named` to exhaust all
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available memory. This flaw was addressed by adding a new
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``update-quota`` option that controls the maximum number of
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outstanding DNS UPDATE messages that :iscman:`named` can hold in a
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queue at any given time (default: 100). :cve:`2022-3094`
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ISC would like to thank Rob Schulhof from Infoblox for bringing this
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vulnerability to our attention. :gl:`#3523`
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- :iscman:`named` could crash with an assertion failure when an RRSIG
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query was received and ``stale-answer-client-timeout`` was set to a
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non-zero value. This has been fixed. :cve:`2022-3736`
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ISC would like to thank Borja Marcos from Sarenet (with assistance by
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Iratxe Niño from Fundación Sarenet) for bringing this vulnerability to
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our attention. :gl:`#3622`
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- :iscman:`named` running as a resolver with the
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``stale-answer-client-timeout`` option set to any value greater than
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``0`` could crash with an assertion failure, when the
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``recursive-clients`` soft quota was reached. This has been fixed.
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:cve:`2022-3924`
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ISC would like to thank Maksym Odinintsev from AWS for bringing this
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vulnerability to our attention. :gl:`#3619`
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New Features
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~~~~~~~~~~~~
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- The new ``update-quota`` option can be used to control the number of
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simultaneous DNS UPDATE messages that can be processed to update an
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authoritative zone on a primary server, or forwarded to the primary
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server by a secondary server. The default is 100. A new statistics
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counter has also been added to record events when this quota is
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exceeded, and the version numbers for the XML and JSON statistics
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schemas have been updated. :gl:`#3523`
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Feature Changes
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~~~~~~~~~~~~~~~
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- The Differentiated Services Code Point (DSCP) feature in BIND has been
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deprecated. Configuring DSCP values in ``named.conf`` now causes a
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warning to be logged. Note that this feature has only been partly
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operational since the new Network Manager was introduced in BIND
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9.16.0. :gl:`#3773`
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- The catalog zone implementation has been optimized to work with
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hundreds of thousands of member zones. :gl:`#3744`
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Bug Fixes
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~~~~~~~~~
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- In certain query resolution scenarios (e.g. when following CNAME
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records), :iscman:`named` configured to answer from stale cache could
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return a SERVFAIL response despite a usable, non-stale answer being
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present in the cache. This has been fixed. :gl:`#3678`
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Known Issues
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~~~~~~~~~~~~
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- There are no new known issues with this release. See :ref:`above
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<relnotes_known_issues>` for a list of all known issues affecting this
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BIND 9 branch.
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