BIND 9.9.10-P3 is now available
Michael McNally
mcnally at isc.org
Sat Jul 8 04:03:00 UTC 2017
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.
BIND 9.9.10-P3 addresses a TSIG regression introduced in 9.9.10-P2.
Download
The latest versions of BIND 9 software can always be found at
[1]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
[2]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. [3]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
[4]http://www.isc.org/donate/.
References
1. http://www.isc.org/downloads/
2. https://www.isc.org/bind-keys
3. https://www.isc.org/downloads/software-support-policy/
4. http://www.isc.org/donate/
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