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BIND 9.9.10-P2 Release Notes

  • Updated on 29 Jun 2017
  • 2 minutes to read
  • Contributors 

Introduction

  This document summarizes changes since BIND 9.9.10:




  BIND 9.9.10-P1 addresses the security issues described in
  CVE-2017-3140 and CVE-2017-3141.




  BIND 9.9.10-P2 addresses the security issues described in
  CVE-2017-3142 and CVE-2017-3143. It also includes an update
  to the address of the B root server.

Download

  The latest versions of BIND 9 software can always be found at
  [http://www.isc.org/downloads/](http://www.isc.org/downloads).
  There you will find additional information about each release,
  source code, and pre-compiled versions for Microsoft Windows
  operating systems.

New DNSSEC Root Key

  ICANN is in the process of introducing a new Key Signing Key (KSK) for
  the global root zone. BIND has multiple methods for managing DNSSEC
  trust anchors, with somewhat different behaviors. If the root
  key is configured using the **managed-keys** 
  statement, or if the pre-configured root key is enabled by using
  **dnssec-validation auto** , then BIND can keep
  keys up to date automatically. Servers configured in this way
  will roll seamlessly to the new key when it is published in
  the root zone. However, keys configured using the
  **trusted-keys**  statement are not automatically
  maintained. If your server is performing DNSSEC validation
  and is configured using **trusted-keys** , you are
  advised to change your configuration before the root zone begins
  signing with the new KSK. This is currently scheduled for
  October 11, 2017.




  This release includes an updated version of the
  `bind.keys` file containing the new root
  key. This file can also be downloaded from
  [

https://www.isc.org/bind-keys ](https://www.isc.org/bind-keys).

Security Fixes

* An error in TSIG handling could permit unauthorized zone

transfers or zone updates. These flaws are disclosed in CVE-2017-3142 and CVE-2017-3143. [RT #45383]

  • The BIND installer on Windows used an unquoted service path, which can enable privilege escalation. This flaw is disclosed in CVE-2017-3141. [RT #45229]
  • With certain RPZ configurations, a response with TTL 0 could cause named to go into an infinite query loop. This flaw is disclosed in CVE-2017-3140. [RT #45181]

End of Life

  BIND 9.9 (Extended Support Version) will be supported until
  December, 2017.
  [https://www.isc.org/downloads/software-support-policy/](https://www.isc.org/downloads/software-support-policy)

Thank You

  Thank you to everyone who assisted us in making this release possible.
  If you would like to contribute to ISC to assist us in continuing to
  make quality open source software, please visit our donations page at
  [http://www.isc.org/donate/](http://www.isc.org/donate).

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