81 lines
3.0 KiB
ReStructuredText
81 lines
3.0 KiB
ReStructuredText
.. 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 9.16.37
|
|
----------------------
|
|
|
|
Security Fixes
|
|
~~~~~~~~~~~~~~
|
|
|
|
- An UPDATE message flood could cause :iscman:`named` to exhaust all
|
|
available memory. This flaw was addressed by adding a new
|
|
``update-quota`` option that controls the maximum number of
|
|
outstanding DNS UPDATE messages that :iscman:`named` can hold in a
|
|
queue at any given time (default: 100). (CVE-2022-3094)
|
|
|
|
ISC would like to thank Rob Schulhof from Infoblox for bringing this
|
|
vulnerability to our attention. :gl:`#3523`
|
|
|
|
- :iscman:`named` could crash with an assertion failure when an RRSIG
|
|
query was received and ``stale-answer-client-timeout`` was set to a
|
|
non-zero value. This has been fixed. (CVE-2022-3736)
|
|
|
|
ISC would like to thank Borja Marcos from Sarenet (with assistance by
|
|
Iratxe Niño from Fundación Sarenet) for bringing this vulnerability to
|
|
our attention. :gl:`#3622`
|
|
|
|
- :iscman:`named` running as a resolver with the
|
|
``stale-answer-client-timeout`` option set to any value greater than
|
|
``0`` could crash with an assertion failure, when the
|
|
``recursive-clients`` soft quota was reached. This has been fixed.
|
|
(CVE-2022-3924)
|
|
|
|
ISC would like to thank Maksym Odinintsev from AWS for bringing this
|
|
vulnerability to our attention. :gl:`#3619`
|
|
|
|
New Features
|
|
~~~~~~~~~~~~
|
|
|
|
- The new ``update-quota`` option can be used to control the number of
|
|
simultaneous DNS UPDATE messages that can be processed to update an
|
|
authoritative zone on a primary server, or forwarded to the primary
|
|
server by a secondary server. The default is 100. A new statistics
|
|
counter has also been added to record events when this quota is
|
|
exceeded, and the version numbers for the XML and JSON statistics
|
|
schemas have been updated. :gl:`#3523`
|
|
|
|
Feature Changes
|
|
~~~~~~~~~~~~~~~
|
|
|
|
- The Differentiated Services Code Point (DSCP) feature in BIND has been
|
|
deprecated. Configuring DSCP values in ``named.conf`` now causes a
|
|
warning to be logged. Note that this feature has only been partly
|
|
operational since the new Network Manager was introduced in BIND
|
|
9.16.0. :gl:`#3773`
|
|
|
|
- The catalog zone implementation has been optimized to work with
|
|
hundreds of thousands of member zones. :gl:`#3744`
|
|
|
|
Bug Fixes
|
|
~~~~~~~~~
|
|
|
|
- In certain query resolution scenarios (e.g. when following CNAME
|
|
records), :iscman:`named` configured to answer from stale cache could
|
|
return a SERVFAIL response despite a usable, non-stale answer being
|
|
present in the cache. This has been fixed. :gl:`#3678`
|
|
|
|
Known Issues
|
|
~~~~~~~~~~~~
|
|
|
|
- There are no new known issues with this release. See :ref:`above
|
|
<relnotes_known_issues>` for a list of all known issues affecting this
|
|
BIND 9 branch.
|