BIND 9.8.0-P1 is security patch for BIND 9.8.0.
Please see the CHANGES file in the source code release for a complete list of all changes.
The latest development versions 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 https://lists.isc.org/mailman/listinfo.
BIND 9.8.0 introduced Response Policy Zones (RPZ), a mechanism for modifying DNS responses returned by a recursive server according to a set of rules which are either defined locally or imported from a reputation provider.
In typical configurations, RPZ is used to force negative (NXDOMAIN) responses for untrusted names. However, it can also be used to replace the answer for a given query, returning a positive response defined by local policy.
In BIND 9.8.0, when an RPZ was configured to replace the answer RRset for a given name, a query of type RRSIG for that name could trigger an assertion failure and cause the name server process to exit. [RT #24280] [CVE-2011-1907]
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