Unbound 1.9.2rc1 pre-release

Tue Jun 11 12:06:23 UTC 2019

Hi,

Unbound 1.9.2rc2 release candidate is available:
https://nlnetlabs.nl/downloads/unbound/unbound-1.9.2rc2.tar.gz
sha256 f74f310e48131b379d60e08213f8c8e87d83ab1bceec347e7d5511c5f3253513
pgp https://nlnetlabs.nl/downloads/unbound/unbound-1.9.2rc2.tar.gz.asc

This release candidate fixes a crash introduced in a bugfix that is part
of 1.9.2rc1.  Fixes issue #38, whilst also attempting to fix the
underlying issue.

Bug Fixes:
- Fix that fixes the Fix that spoolbuf is not used to store tcp
  pipelined response between mesh send and callback end, this fixes
  error cases that did not use the correct spoolbuf.

Best regards, Wouter

On 6/6/19 10:57 AM, Wouter Wijngaards wrote:
> Hi,
> 
> Unbound 1.9.2rc1 release candidate is available:
> https://nlnetlabs.nl/downloads/unbound/unbound-1.9.2rc1.tar.gz
> sha256 0138ea465145efb9fd573750166feb10a5bc5892c7dac7758326cfac3b52d486
> pgp https://nlnetlabs.nl/downloads/unbound/unbound-1.9.2rc1.tar.gz.asc
> 
> 
> This release contains a number of bug fixes for crashes introduced in
> 1.9, session ticket code, stream pipeline code, auth zone code and it
> also fixes qname minimisation packet scrub failures.
> 
> There is a new python module example.  This is an example of a module
> that is loaded into unbound that changes DNS messages, and how Unbound
> processes them.  The example resolves records in multicast DNS, with Avahi.
> 
> AXFR over TLS is supported.  This uses TLS to connect to the master and
> download the AXFR or IXFR.  Enable by loading certificates (just like
> for other DNS over TLS), and syntax like master: "ip#authname" in
> unbound.conf for the auth-zone where you want to use this.
> 
> 
> Features
> - add type CAA to libpyunbound (accessing libunbound from python).
> - Fix #17: Add python module example from Jan Janak, that is a
>   plugin for the Unbound DNS resolver to resolve DNS records in
>   multicast DNS [RFC 6762] via Avahi.  The plugin communicates
>   with Avahi via DBus. The comment section at the beginning of
>   the file contains detailed documentation.
> - travis build file.
> - PR #16: XoT support, AXFR over TLS, turn it on with
>   master: <ip>#<authname> in unbound.conf.  This uses TLS to
>   download the AXFR (or IXFR).
> 
> Bug Fixes
> - Fix for #4233: guard use of NDEBUG, so that it can be passed in
>   CFLAGS into configure.
> - Add log message, at verbosity 4, that says the query is encrypted
>   with TLS, if that is enabled for the query.
> - Fix #4239: set NOTIMPL when deny-any is enabled, for RFC8482.
> - Fix #4240: Fix whitespace cleanup in example.conf.
> - Fix that tls-session-ticket-keys: "" on its own in unbound.conf
>   disables the tls session ticker key calls into the OpenSSL API.
> - Fix crash if tls-servic-pem not filled in when necessary.
> - Fix auth-zone NSEC3 response for empty nonterminals with exact
>   match nsec3 records.
> - Fix for out of bounds integers, thanks to OSTIF audit.  It is in
>   allocation debug code.
> - Fix for auth zone nsec3 ent fix for wildcard nodata.
> - Move goto label in answer_from_cache to the end of the function
>   where it is more visible.
> - Fix auth-zone NSEC3 response for wildcard nodata answers,
>   include the closest encloser in the answer.
> - Fix spelling error in log output for event method.
> - Fix to reinit event structure for accepted TCP (and TLS) sockets.
> - Fix to use event_assign with libevent for thread-safety.
> - verbose information about auth zone lookup process, also lookup
>   start, timeout and fail.
> - Fix to wipe ssl ticket keys from memory with explicit_bzero,
>   if available.
> - Fix that auth zone uses correct network type for sockets for
>   SOA serial probes.  This fixes that probes fail because earlier
>   probe addresses are unreachable.
> - Fix that auth zone fails over to next master for timeout in tcp.
> - Squelch SSL read and write connection reset by peer and broken pipe
>   messages.  Verbosity 2 and higher enables them.
> - Update python documentation for init_standard().
> - Typos.
> - Fix tls write event for read state change to re-call SSL_write and
>   not resume the TLS handshake.
> - Better braces in if statement in TCP fastopen code.
> - iana portlist updated.
> - Scrub RRs from answer section when reusing NXDOMAIN message for
>   subdomain answers.
> - For harden-below-nxdomain: do not consider a name to be non-exitent
>   when message contains a CNAME record.
> - Fix wrong query name in local zone redirect answers with a CNAME,
>   the copy of the local alias is in unpacked form.
> - contrib/fastrpz.patch updated for code changes, and with git diff.
> - Fix #29: Solaris 11.3 and missing symbols be64toh, htobe64.
> - Fix #30: AddressSanitizer finding in lookup3.c.  This sets the
>   hash function to use a slower but better auditable code that does
>   not read beyond array boundaries.  This makes code better security
>   checkable, and is better for security.  It is fixed to be slower,
>   but not read outside of the array.
> - Fix edns-subnet locks, in error cases the lock was not unlocked.
> - Fix doxygen output error on readme markdown vignettes.
> - Squelch log messages from tcp send about connection reset by peer.
>   They can be enabled with verbosity at higher values for diagnosing
>   network connectivity issues.
> - Attempt to fix malformed tcp response.
> - Fix #31: swig 4.0 and python module.
> - Note that so-reuseport at extreme load is better turned off,
>   otherwise queries are not distributed evenly, on Linux 4.4.x.
> - Fix that spoolbuf is not used to store tcp pipelined response
>   between mesh send and callback end.
> - Fix double file close in tcp pipelined response code.
> - Fix to define _OPENBSD_SOURCE to get reallocarray on NetBSD.
> - Fix to guard _OPENBSD_SOURCE from redefinition.
> 
> 
> Best regards, Wouter
> 
> 
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> maintainers at nlnetlabs.nl
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> 

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