BIND 9.6-ESV-R7-P4 is now available
Michael McNally
mcnally at isc.org
Tue Oct 9 21:15:50 UTC 2012
Introduction
BIND 9.6-ESV-R7-P4 is the latest production release of BIND
9.6-ESV-R7 (BIND 9.6-ESV-R8 is also available for download, and is
the latest production release of BIND 9.6-ESV).
BIND 9.6-ESV is an Extended Support Version of BIND 9.
This document summarizes changes from BIND 9.6-ESV-R6 to BIND
9.6-ESV-R7-P4. Please see the CHANGES file in the source code
release for a complete list of all changes.
Download
The latest versions of BIND 9 software can always be found on our
web site at http://www.isc.org/downloads/all. There you will find
additional information about each release, source code, and
pre-compiled versions for Microsoft Windows operating systems.
Support
Product support information is available on
http://www.isc.org/support for paid support options. Free support
is provided by our user community via a mailing list. Information
on all public email lists is available at
https://lists.isc.org/mailman/listinfo.
Security Fixes
* A deliberately constructed combination of records could cause named
to hang while populating the additional section of a response.
[RT #31090]
* Prevents a named assert (crash) when queried for a record whose
RDATA exceeds 65535 bytes. [RT #30416]
* Prevents a named assert (crash) when validating caused by using
"Bad cache" data before it has been initialized. [RT #30025]
* A condition has been corrected where improper handling of
zero-length RDATA could cause undesirable behavior, including
termination of the named process. [RT #29644]
New Features
* None
Feature Changes
* BIND now recognizes the TLSA resource record type, created to
support IETF DANE (DNS-based Authentication of Named Entities)
[RT #28989]
Bug Fixes
* Fixes the defect introduced by change #3314 that was causing
failures when saving stub zones to disk (resulting in excessive CPU
usage in some cases). [RT #29952]
* The tests on random jitter values that are used when handling zone
refreshes have been relaxed. Prior to this change named could
terminate unexpectedly when processing stub zones. [RT# 19821]
* The locking strategy around the handling of iterative queries has
been tuned to reduce unnecessary contention in a multi-threaded
environment. (Note that this may not provide a measurable
improvement over previous versions of BIND, but it corrects the
performance impact of change 3309 / RT #27995) [RT #29239]
* Addresses a race condition that can cause named to to crash when
the masters list for a zone is updated via rndc reload/reconfig
[RT #26732]
* Fixes a race condition in zone.c that can cause named to crash
during the processing of rndc delzone [RT #29028]
* Prevents a named segfault from resolver.c due to procedure
fctx_finddone() not being thread-safe. [RT #27995]
* Uses hmctx, not mctx when freeing rbtdb->heaps to avoid triggering
an assertion when flushing cache data. [RT #28571]
* A new flag -R has been added to queryperf for running tests using
non-recursive queries. It also now builds correctly on MacOS
version 10.7 (darwin) [RT #28565]
* Named no longer crashes if gssapi is enabled in named.conf but was
not compiled into the binary [RT #28338]
* SDB now handles unexpected errors from back-end database drivers
gracefully instead of exiting on an assert. [RT #28534]
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/supportisc.
(c) 2001-2012 Internet Systems Consortium
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