Security fixes were already covered by 9.6.3.1.ESV.10pl2 and this is
the final release of 9.6.ESV.
Several bug fixes and clean up, please refer CHANGES file in detail.
(CVE-2013-3919 is already fixed in pkgsrc).
Security Fixes
Prevents exploitation of a runtime_check which can crash named
when satisfying a recursive query for particular malformed zones.
(CVE-2013-3919) [RT #33690]
Feature Changes
rndc status now also shows the build-id. [RT #20422]
Improved OPT pseudo-record processing to make it easier to support
new EDNS options. [RT #34414]
"configure" now finishes by printing a summary of optional BIND
features and whether they are active or inactive. ("configure
--enable-full-report" increases the verbosity of the summary.)
[RT #31777]
Addressed compatibility issues with newer versions of Microsoft
Visual Studio. [RT #33916]
Improved the 'rndc' man page. [RT #33506]
'named -g' now no longer works with an invalid logging configuration.
[RT #33473]
The default (and minimum) value for tcp-listen-queue is now 10
instead of 3. This is a subtle control setting (not applicable
to all OS environments). When there is a high rate of inbound
TCP connections, it controls how many connections can be queued
before they are accepted by named. Once this limit is exceeded,
new TCP connections will be rejected. Note however that a value
of 10 does not imply a strict limit of 10 queued TCP connections
- the impact of changing this configuration setting will be
OS-dependent. Larger values for tcp-listen queue will permit
more pending tcp connections, which may be needed where there
is a high rate of TCP-based traffic (for example in a dynamic
environment where there are frequent zone updates and transfers).
For most production servers the new default value of 10 should
be adequate. [RT #33029]
Bug Fixes
Fixed the "allow-query-on" option to correctly check the destination
address. [RT #34590]
Fix forwarding for forward only "zones" beneath automatic empty
zones. [RT #34583]
Remove bogus warning log message about missing signatures when
receiving a query for a SIG record. [RT #34600]
Improved resistance to a theoretical authentication attack based
on differential timing. [RT #33939]
The build of BIND now installs isc/stat.h so that it's available
to /isc/file.h when building other applications that reference
these header files - for example dnsperf (see Debian bug ticket
#692467). [RT #33056]
Better handle failures building XML for stats channel responses.
[RT #33706]
Fixed a memory leak in GSS-API processing. [RT #33574]
Fixed an acache-related race condition that could cause a crash.
[RT #33602]
rndc now properly fails when given an invalid '-c' argument. [RT
#33571]
Fixed an issue with the handling of zero TTL records that could
cause improper SERVFAILs. [RT #33411]
Fixed a crash-on-shutdown race condition with DNSSEC validation.
[RT #33573]
Security Fixes
+ BIND 9 nameservers performing recursive queries could cache an
invalid record and subsequent queries for that record could
crash the resolvers with an assertion failure. [RT #26590]
[CVE-2011-4313]
Feature Changes
+ Improves initial start-up and server reload time by increasing
the default size of the hash table the configuration parser
uses to keep track of loaded zones and allowing it to grow
dynamically to better handle systems with large numbers of
zones. [RT #26523]
+ --enable-developer, a new composite argument to the configure
script, enables a set of build options normally disabled but
frequently selected in test or development builds, specifically:
enable_fixed_rrset, with_atf, enable_filter_aaaa, enable_rpz_nsip,
enable_rpz_nsdname, and with_dlz_filesystem (and on Linux and
Darwin, also enable_exportlib) [RT #27103]
For full changes, please refer:
ftp://ftp.isc.org/isc/bind9/9.6-ESV-R5/RELEASE-NOTES-BIND-9.6-ESV.html
New Features
9.6-ESV-R5
* Added a tool able to generate malformed packets to allow testing of
how named handles them. [RT #24096]
Security Fixes
9.6-ESV-R5
* named, set up to be a caching resolver, is vulnerable to a user
querying a domain with very large resource record sets (RRSets)
when trying to negatively cache the response. Due to an off-by-one
error, caching the response could cause named to crash. [RT #24650]
[CVE-2011-1910]
* Change #2912 populated the message section in replies to UPDATE
requests, which some Windows clients wanted. This exposed a latent
bug that allowed the response message to crash named. With this
fix, change 2912 has been reduced to copy only the zone section to
the reply. A more complete fix for the latent bug will be released
later. [RT #24777]
Feature Changes
9.6-ESV-R5
* Merged in the NetBSD ATF test framework (currently version 0.12)
for development of future unit tests. Use configure --with-atf to
build ATF internally or configure --with-atf=prefix to use an
external copy. [RT #23209]
* Added more verbose error reporting from DLZ LDAP. [RT #23402]
* Replaced compile time constant with STDTIME_ON_32BITS. [RT #23587]
9.6.3
* BIND now builds with threads disabled in versions of NetBSD earlier
than 5.0 and with pthreads enabled by default in NetBSD versions
5.0 and higher. Also removes support for unproven-pthreads,
mit-pthreads and ptl2. [RT #19203]
* 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]
* A bug in NetBSD and FreeBSD kernels with SO_ACCEPTFILTER enabled
allows for a TCP DoS attack. Until there is a kernel fix, ISC is
disabling SO_ACCEPTFILTER support in BIND. [RT #22589]
* 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]
* Don't run MX checks (check-mx) when the MX record points to ".".
[RT #22645]
* DST key reference counts can now be incremented via dst_key_attach.
[RT #22672]
* isc_mutex_init_errcheck() in phtreads/mutex.c failed to destroy
attr. [RT #22766]
* The Kerberos realm was being truncated when being pulled from the
the host prinicipal, make krb5-self updates fail. [RT #22770]
* named failed to preserve the case of domain names in RDATA which is
not compressible when writing master files. [RT #22863]
* There was a bug in how the clients-per-query code worked with some
query patterns. This could result, in rare circumstances, in having
all the client query slots filled with queries for the same DNS
label, essentially ignoring the max-clients-per-query setting. [RT
#22972]
--- 9.6.1-P3 released ---
2831. [security] Do not attempt to validate or cache
out-of-bailiwick data returned with a secure
answer; it must be re-fetched from its original
source and validated in that context. [RT #20819]
2828. [security] Cached CNAME or DNAME RR could be returned to clients
without DNSSEC validation. [RT #20737]
2827. [security] Bogus NXDOMAIN could be cached as if valid. [RT #20712]
Based on PR 41772 by Robert Elz.
Pkgsrc changes:
o MAKE_JOBS_SAFE=no, README said "Do not use a parallel make".
o remove patch-aj, libbind has been removed from the BIND 9 distribution
since 9.6.0.
o add bind-dig-sigchase option. requested by PR 41751.
Changes since 9.6.0:
--- 9.6.1 released ---
2607. [bug] named could incorrectly delete NSEC3 records for
empty nodes when processing a update request.
[RT #19749]
2606. [bug] "delegation-only" was not being accepted in
delegation-only type zones. [RT #19717]
2605. [bug] Accept DS responses from delegation only zones.
[RT # 19296]
2603. [port] win32: handle .exe extension of named-checkzone and
named-comilezone argv[0] names under windows.
[RT #19767]
2602. [port] win32: fix debugging command line build of libisccfg.
[RT #19767]
--- 9.6.1rc1 released ---
2599. [bug] Address rapid memory growth when validation fails.
[RT #19654]
2597. [bug] Handle a validation failure with a insecure delegation
from a NSEC3 signed master/slave zone. [RT #19464]
2596. [bug] Stale tree nodes of cache/dynamic rbtdb could stay
long, leading to inefficient memory usage or rejecting
newer cache entries in the worst case. [RT #19563]
2595. [bug] Fix unknown extended rcodes in dig. [RT #19625]
2592. [bug] Treat "any" as a type in nsupdate. [RT #19455]
2591. [bug] named could die when processing a update in
removed_orphaned_ds(). [RT #19507]
2588. [bug] SO_REUSEADDR could be set unconditionally after failure
of bind(2) call. This should be rare and mostly
harmless, but may cause interference with other
processes that happen to use the same port. [RT #19642]
2586. [bug] Missing cleanup of SIG rdataset in searching a DLZ DB
or SDB. [RT #19577]
2585. [bug] Uninitialized socket name could be referenced via a
statistics channel, triggering an assertion failure in
XML rendering. [RT #19427]
2584. [bug] alpha: gcc optimization could break atomic operations.
[RT #19227]
2583. [port] netbsd: provide a control to not add the compile
date to the version string, -DNO_VERSION_DATE.
2582. [bug] Don't emit warning log message when we attempt to
remove non-existant journal. [RT #19516]
2579. [bug] DNSSEC lookaside validation failed to handle unknown
algorithms. [RT #19479]
2578. [bug] Changed default sig-signing-type to 65534, because
65535 turns out to be reserved. [RT #19477]
2499. [port] solaris: lib/lwres/getaddrinfo.c namespace clash.
[RT #18837]
--- 9.6.1b1 released ---
2577. [doc] Clarified some statistics counters. [RT #19454]
2576. [bug] NSEC record were not being correctly signed when
a zone transitions from insecure to secure.
Handle such incorrectly signed zones. [RT #19114]
2574. [doc] Document nsupdate -g and -o. [RT #19351]
2573. [bug] Replacing a non-CNAME record with a CNAME record in a
single transaction in a signed zone failed. [RT #19397]
2568. [bug] Report when the write to indicate a otherwise
successful start fails. [RT #19360]
2567. [bug] dst__privstruct_writefile() could miss write errors.
write_public_key() could miss write errors.
dnssec-dsfromkey could miss write errors.
[RT #19360]
2564. [bug] Only take EDNS fallback steps when processing timeouts.
[RT #19405]
2563. [bug] Dig could leak a socket causing it to wait forever
to exit. [RT #19359]
2562. [doc] ARM: miscellaneous improvements, reorganization,
and some new content.
2561. [doc] Add isc-config.sh(1) man page. [RT #16378]
2560. [bug] Add #include <config.h> to iptable.c. [RT #18258]
2559. [bug] dnssec-dsfromkey could compute bad DS records when
reading from a K* files. [RT #19357]
2557. [cleanup] PCI compliance:
* new libisc log module file
* isc_dir_chroot() now also changes the working
directory to "/".
* additional INSISTs
* additional logging when files can't be removed.
2556. [port] Solaris: mkdir(2) on tmpfs filesystems does not do the
error checks in the correct order resulting in the
wrong error code sometimes being returned. [RT #19249]
2554. [bug] Validation of uppercase queries from NSEC3 zones could
fail. [RT #19297]
2553. [bug] Reference leak on DNSSEC validation errors. [RT #19291]
2552. [bug] zero-no-soa-ttl-cache was not being honoured.
[RT #19340]
2551. [bug] Potential Reference leak on return. [RT #19341]
2550. [bug] Check --with-openssl=<path> finds <openssl/opensslv.h>.
[RT #19343]
2549. [port] linux: define NR_OPEN if not currently defined.
[RT #19344]
2548. [bug] Install iterated_hash.h. [RT #19335]
2547. [bug] openssl_link.c:mem_realloc() could reference an
out-of-range area of the source buffer. New public
function isc_mem_reallocate() was introduced to address
this bug. [RT #19313]
2545. [doc] ARM: Legal hostname checking (check-names) is
for SRV RDATA too. [RT #19304]
2544. [cleanup] Removed unused structure members in adb.c. [RT #19225]
2543. [contrib] Update contrib/zkt to version 0.98. [RT #19113]
2542. [doc] Update the description of dig +adflag. [RT #19290]
2541. [bug] Conditionally update dispatch manager statistics.
[RT #19247]
2539. [security] Update the interaction between recursion, allow-query,
allow-query-cache and allow-recursion. [RT #19198]
2538. [bug] cache/ADB memory could grow over max-cache-size,
especially with threads and smaller max-cache-size
values. [RT #19240]
2537. [experimental] Added more statistics counters including those on socket
I/O events and query RTT histograms. [RT #18802]
2536. [cleanup] Silence some warnings when -Werror=format-security is
specified. [RT #19083]
2535. [bug] dig +showsearh and +trace interacted badly. [RT #19091]
2532. [bug] dig: check the question section of the response to
see if it matches the asked question. [RT #18495]
2531. [bug] Change #2207 was incomplete. [RT #19098]
2530. [bug] named failed to reject insecure to secure transitions
via UPDATE. [RT #19101]
2529. [cleanup] Upgrade libtool to silence complaints from recent
version of autoconf. [RT #18657]
2528. [cleanup] Silence spurious configure warning about
--datarootdir [RT #19096]
2527. [bug] named could reuse cache on reload with
enabling/disabling validation. [RT #19119]
2525. [experimental] New logging category "query-errors" to provide detailed
internal information about query failures, especially
about server failures. [RT #19027]
2524. [port] sunos: dnssec-signzone needs strtoul(). [RT #19129]
2523. [bug] Random type rdata freed by dns_nsec_typepresent().
[RT #19112]
2522. [security] Handle -1 from DSA_do_verify() and EVP_VerifyFinal().
2521. [bug] Improve epoll cross compilation support. [RT #19047]
2519. [bug] dig/host with -4 or -6 didn't work if more than two
nameserver addresses of the excluded address family
preceded in resolv.conf. [RT #19081]
2517. [bug] dig +trace with -4 or -6 failed when it chose a
nameserver address of the excluded address.
[RT #18843]
2516. [bug] glue sort for responses was performed even when not
needed. [RT #19039]
2514. [bug] dig/host failed with -4 or -6 when resolv.conf contains
a nameserver of the excluded address family.
[RT #18848]
2511. [cleanup] dns_rdata_tofmttext() add const to linebreak.
[RT #18885]
2506. [port] solaris: Check at configure time if
hack_shutup_pthreadonceinit is needed. [RT #19037]
2505. [port] Treat amd64 similarly to x86_64 when determining
atomic operation support. [RT #19031]
2503. [port] linux: improve compatibility with Linux Standard
Base. [RT #18793]
2502. [cleanup] isc_radix: Improve compliance with coding style,
document function in <isc/radix.h>. [RT #18534]
