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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 9.19.21
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----------------------
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Security Fixes
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~~~~~~~~~~~~~~
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- Validating DNS messages containing a lot of DNSSEC signatures could
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cause excessive CPU load, leading to a denial-of-service condition.
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This has been fixed. :cve:`2023-50387`
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ISC would like to thank Elias Heftrig, Haya Schulmann, Niklas Vogel,
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and Michael Waidner from the German National Research Center for
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Applied Cybersecurity ATHENE. :gl:`#4424`
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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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