Adding upstream version 1:9.16.44.upstream/1%9.16.44upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 80 insertions, 0 deletions

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+.. 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.