marka at isc.org
Fri Dec 17 03:13:21 UTC 2010
BIND 9.6.3b1 is a beta release for BIND 9.6.
This document summarizes changes from BIND 9.6.2-P2 to BIND 9.6.3.
Please see the CHANGES file in the source code release for a complete
list of all changes.
The latest development version of BIND 9 software can always be found
on our web site at http://www.isc.org/downloads/development. There you
will find additional information about each release, source code, and
some pre-compiled versions for certain operating systems.
Product support information is available on
http://www.isc.org/services/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
* Adding a NO DATA signed negative response to cache failed to clear
any matching RRSIG records already in cache. A subsequent lookup of
the cached NO DATA entry could crash named (INSIST) when the
unexpected RRSIG was also returned with the NO DATA cache entry.
[RT #22288] [CVE-2010-3613] [VU#706148]
* BIND, acting as a DNSSEC validator, was determining if the NS RRset
is insecure based on a value that could mean either that the RRset
is actually insecure or that there wasn't a matching key for the
RRSIG in the DNSKEY RRset when resuming from validating the DNSKEY
RRset. This can happen when in the middle of a DNSKEY algorithm
rollover, when two different algorithms were used to sign a zone
but only the new set of keys are in the zone DNSKEY RRset. [RT
#22309] [CVE-2010-3614] [VU#837744]
* Worked around a race condition in the cache database memory
handling. Without this fix a DNS cache DB or ADB could incorrectly
stay in an over memory state, effectively refusing further caching,
which subsequently made a BIND 9 caching server unworkable. [RT
* Microsoft changed the behavior of sockets between NT/XP based
stacks vs Vista/windows7 stacks. Server 2003/2008 have the older
behavior, 2008r2 has the new behavior. With the change, different
error results are possible, so ISC adapted BIND to handle the new
error results. This resolves an issue where sockets would shut down
on Windows servers causing named to stop responding to queries. [RT
* Windows has non-POSIX compliant behavior in its rename() and
unlink() calls. This caused journal compaction to fail on Windows
BIND servers with the log error: "dns_journal_compact failed:
failure". [RT #22434]
* HPUX now correctly defaults to using /dev/poll, which should
increase performance. [RT #21919]
* If named is running as a threaded application, after an "rndc stop"
command has been issued, other inbound TCP requests can cause named
to hang and never complete shutdown. [RT #22108]
* When performing a GSS-TSIG signed dynamic zone update, memory could
be leaked. This causes an unclean shutdown and may affect
long-running servers. [RT #22573]
* Corrected a defect where a combination of dynamic updates and zone
transfers incorrectly locked the in-memory zone database, causing
named to freeze. [RT #22614]
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
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: marka at isc.org
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