Commit Graph

55 Commits

Author SHA1 Message Date
Doug Barton
b62e898e00 Upgrade to BIND 9.8.1-P1 to address the following DDOS bug:
Recursive name servers are failing with an assertion:
INSIST(! dns_rdataset_isassociated(sigrdataset))

At this time it is not thought that authoritative-only servers
are affected, but information about this bug is evolving rapidly.

Because it may be possible to trigger this bug even on networks
that do not allow untrusted users to access the recursive name
servers (perhaps via specially crafted e-mail messages, and/or
malicious web sites) it is recommended that ALL operators of
recursive name servers upgrade immediately.

For more information see:
https://www.isc.org/software/bind/advisories/cve-2011-tbd
which will be updated as more information becomes available.

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4313
2011-11-17 00:25:35 +00:00
Doug Barton
6fae67da24 Upgrade to BIND version 9.8.1. Release notes at:
https://deepthought.isc.org/article/AA-00446/81/
or
/usr/src/contrib/bind9/

Approved by:	re (kib)
2011-09-03 07:13:45 +00:00
Doug Barton
7afecc12f4 Upgrade to version 9.8.0-P4
This version has many new features, see /usr/share/doc/bind9/README
for details.
2011-07-16 11:12:09 +00:00
Doug Barton
7c9d9e417a Update to version 9.6-ESV-R4-P3
ALL BIND USERS ARE ENCOURAGED TO UPGRADE IMMEDIATELY

This update addresses the following vulnerability:

CVE-2011-2464
=============
Severity:	High
Exploitable:	Remotely

Description:

A defect in the affected BIND 9 versions allows an attacker to remotely
cause the "named" process to exit using a specially crafted packet. This
defect affects both recursive and authoritative servers. The code location
of the defect makes it impossible to protect BIND using ACLs configured
within named.conf or by disabling any features at compile-time or run-time.

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2464
https://www.isc.org/software/bind/advisories/cve-2011-2464
2011-07-06 00:48:31 +00:00
Doug Barton
09103e4808 Apply bug fixes
Submitted by:	marius
2011-07-06 00:47:27 +00:00
Doug Barton
37bb75f740 Upgrade to 9.6-ESV-R4-P1, which address the following issues:
1. Very large RRSIG RRsets included in a negative cache can trigger
an assertion failure that will crash named (BIND 9 DNS) due to an
off-by-one error in a buffer size check.

This bug affects all resolving name servers, whether DNSSEC validation
is enabled or not, on all BIND versions prior to today. There is a
possibility of malicious exploitation of this bug by remote users.

2. Named could fail to validate zones listed in a DLV that validated
insecure without using DLV and had DS records in the parent zone.

Add a patch provided by ru@ and confirmed by ISC to fix a crash at
shutdown time when a SIG(0) key is being used.
2011-05-28 00:21:28 +00:00
Doug Barton
5143adb549 Update to BIND 9.6.3, the latest from ISC on the 9.6 branch.
All 9.6 users with DNSSEC validation enabled should upgrade to this
version, or the latest version in the 9.7 branch, prior to 2011-03-31
in order to avoid validation failures for names in .COM as described
here:

https://www.isc.org/announcement/bind-9-dnssec-validation-fails-new-ds-record

In addition the fixes for this and other bugs, there are also the
following:

  * Various fixes to kerberos support, including GSS-TSIG
  * Various fixes to avoid leaking memory, and to problems that could
    prevent a clean shutdown of named
2011-02-06 22:46:07 +00:00
Doug Barton
c3c441cd46 Update to version 9.6-ESV-R3, the latest from ISC, which addresses
the following security vulnerabilities.

For more information regarding these issues please see:
http://www.isc.org/announcement/guidance-regarding-dec-1st-2010-security-advisories

1. Cache incorrectly allows ncache and rrsig for the same type

   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-3613

   Affects resolver operators whose servers are open to potential
   attackers. Triggering the bug will cause the server to crash.

   This bug applies even if you do not have DNSSEC enabled.

2. Key algorithm rollover

   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-3614

   Affects resolver operators who are validating with DNSSEC, and
   querying zones which are in a key rollover period. The bug will
   cause answers to incorrectly be marked as insecure.
2010-12-04 05:58:56 +00:00
Doug Barton
34ceb982dc Update to 9.6-ESV-R2, the latest from ISC.
This version contains bug fixes that are relevant to any
caching/resolving name server; as well as DNSSEC-related
fixes.
2010-10-31 04:45:53 +00:00
Doug Barton
e7493cfc51 Upgrade to 9.6.2-P2, which addresses the following;
Named could return SERVFAIL for negative responses
   from unsigned zones.
2010-05-20 08:15:06 +00:00
Doug Barton
b8743b3ba5 Update to 9.6.2-P1, the latest patchfix release which deals with
the problems related to the handling of broken DNSSEC trust chains.

This fix is only relevant for those who have DNSSEC validation
enabled and configure trust anchors from third parties, either
manually, or through a system like DLV.
2010-03-18 19:00:35 +00:00
Doug Barton
eda14e83f2 Upgrade to version 9.6.2. This version includes all previously released
security patches to the 9.6.1 version, as well as many other bug fixes.

This version also incorporates a different fix for the problem we had
patched in contrib/bind9/bin/dig/dighost.c, so that file is now back
to being the same as the vendor version.

Due to the fact that the DNSSEC algorithm that will be used to sign the
root zone is only included in this version and in 9.7.x those who wish
to do validation MUST upgrade to one of these prior to July 2010.
2010-03-03 05:45:24 +00:00
Doug Barton
e049346bd4 Upgrade to BIND 9.6.1-P3.
This version address the following vulnerabilities:

BIND 9 Cache Update from Additional Section
https://www.isc.org/advisories/CVE-2009-4022v6
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4022
A nameserver with DNSSEC validation enabled may incorrectly add
unauthenticated records to its cache that are received during the
resolution of a recursive client query

BIND 9 DNSSEC validation code could cause bogus NXDOMAIN responses
https://www.isc.org/advisories/CVE-2010-0097
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-0097
There was an error in the DNSSEC NSEC/NSEC3 validation code that could
cause bogus NXDOMAIN responses (that is, NXDOMAIN responses for records
proven by NSEC or NSEC3 to exist) to be cached as if they had validated
correctly

These issues only affect systems with DNSSEC validation enabled.
2010-01-25 06:18:31 +00:00
Marcel Moolenaar
de7459e59d Fix Read-After-Write (RAW) dependency violation for ar.ccv in
isc_atomic_xadd() and isc_atomic_cmpxchg().

Approved by:	dougb@
MFC after:	1 week
2009-12-07 02:17:58 +00:00
Doug Barton
9748b72412 Update to BIND 9.6.1-P2. The vulnerability this is designed to fix is
related to DNSSEC validation on a resolving name server that allows
access to untrusted users. If your system does not fall into all 3 of
these categories you do not need to update immediately.
2009-11-30 03:38:34 +00:00
Doug Barton
48a8495574 Wrap some socket handling code in a !NULL bow
This patch or something similar will likely be included in a future
BIND release.

PR:		bin/138061
Submitted by:	Michael Baker <michael.baker@diversit.com.au>
Original patch submitted by:	Volker <volker@vwsoft.com>
Patch reviewed and tweaked by:	ISC
2009-11-07 18:55:39 +00:00
Doug Barton
0df811a678 Update to version 9.6.1-P1 which addresses a remote DoS vulnerability:
Receipt of a specially-crafted dynamic update message may
	cause BIND 9 servers to exit. This vulnerability affects all
	servers -- it is not limited to those that are configured to
	allow dynamic updates. Access controls will not provide an
	effective workaround.

More details can be found here: https://www.isc.org/node/474

All BIND users are encouraged to update to a patched version ASAP.

Approved by:	re (re -> SO -> dougb)
2009-07-29 00:15:39 +00:00
Doug Barton
9d0520c4b2 This is the solution that ISC committed after 9.6.1-release for
the gcc warning issue. It should be included in the next upstream
release.
2009-06-25 19:52:45 +00:00
Doug Barton
d1fdc8795a Update to the final release version of BIND 9.6.1. It has the following
changes from the 9.6.1rc1 version. The first 2 only affect DNSSEC.

          named could incorrectly delete NSEC3 records for
          empty nodes when processing a update request.

          Accept DS responses from delegation only zones.

          "delegation-only" was not being accepted in
          delegation-only type zones.
2009-06-25 19:16:29 +00:00
Doug Barton
8df4f1e7be Local hack to get the build going again while ISC works on a more
permanent solution for 9.6.1-release.

"My suggestion is to remove the whole attribute construct.
It only suppresses a warning when a function is unused. In this case
the function is defined as inline, so it's not causing a warning when
not used."

Submitted by:	marcel
2009-06-01 06:31:04 +00:00
Doug Barton
86a672bc31 Update BIND to version 9.6.1rc1. This version has better performance and
lots of new features compared to 9.4.x, including:

	Full NSEC3 support
	Automatic zone re-signing
	New update-policy methods tcp-self and 6to4-self
	DHCID support.
	More detailed statistics counters including those supported in BIND 8.
	Faster ACL processing.
	Efficient LRU cache-cleaning mechanism.
	NSID support.
2009-05-31 05:44:21 +00:00
Doug Barton
6318052d9e Update BIND to version 9.6.1rc1. This version has better performance and
lots of new features compared to 9.4.x, including:

	Full NSEC3 support
	Automatic zone re-signing
	New update-policy methods tcp-self and 6to4-self
	DHCID support.
	More detailed statistics counters including those supported in BIND 8.
	Faster ACL processing.
	Efficient LRU cache-cleaning mechanism.
	NSID support.
2009-05-31 05:42:58 +00:00
Doug Barton
212b42b0a3 Merge from vendor/bind9/dist as of the 9.4.3-P2 import 2009-03-21 23:00:40 +00:00
Doug Barton
990eddd5b7 Merge from vendor/bind9/dist as of the 9.4.3-P1 import 2009-01-09 11:45:45 +00:00
Doug Barton
514216e8d6 Merge from vendor/bind9/dist as of the 9.4.3 import 2008-12-23 22:47:56 +00:00
Doug Barton
ac9a011f43 Merge from vendor/bind9/dist as of the 9.4.2-P2 import 2008-09-01 22:54:49 +00:00
Doug Barton
2e5453748e Merge from vendor/bind9/dist as of the 9.4.2-P1 import, including
the patch from ISC for lib/bind9/check.c and deletion of unused
files in lib/bind.

This version will by default randomize the UDP query source port
(and sequence number of course) for every query.

In order to take advantage of this randomization users MUST have an
appropriate firewall configuration to allow UDP queries to be sent and
answers to be received on random ports; and users MUST NOT specify a
port number using the query-source[-v6] options.

The avoid-v[46]-udp-ports options exist for users who wish to eliminate
certain port numbers from being chosen by named for this purpose. See
the ARM Chatper 6 for more information.

Also please note, this issue applies only to UDP query ports. A random
ephemeral port is always chosen for TCP queries.

This issue applies primarily to name servers whose main purpose is to
resolve random queries (sometimes referred to as "caching" servers, or
more properly as "resolving" servers), although even an "authoritative"
name server will make some queries, primarily at startup time.

All users of BIND are strongly encouraged to upgrade to the latest
version, and to utilize the source port randomization feature.

This update addresses issues raised in:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1447
http://www.kb.cert.org/vuls/id/800113
http://tools.ietf.org/html/draft-ietf-dnsext-forgery-resilience
2008-07-12 09:38:35 +00:00
Doug Barton
632c4e7871 The vendor area is the proper home for these files now. 2008-07-12 08:46:21 +00:00
Peter Wemm
a988131922 Flatten bind9 vendor work area 2008-07-12 05:00:28 +00:00
Doug Barton
5de57ff6ba Add proper mime-types for files that they are relevant for.
This is useful for things like *.pdf files that svn needs
to know about, and will probably be useful down the road
for other things.
2008-06-02 20:37:11 +00:00
Doug Barton
3104e2690b Update this file so that BIND on ARM can actually work. I quote:
The problem was, isc_atomic_cmpxchg() is almost like our
	atomic_cmpset_32(), except it expects the old value to be
	returned, whereas our atomic_cmpset_32 returns 1 on success,
	or 0 on failure. So I re-implemented something suitable.

Submitted by:	cognet
Reviewed by:	bsdimp
2007-12-03 08:26:34 +00:00
Doug Barton
1061ff7e54 This commit was generated by cvs2svn to compensate for changes in r174206,
which included commits to RCS files with non-trunk default branches.
2007-12-03 08:26:34 +00:00
Doug Barton
a6861a2eb3 These files are not part of the distribution.
Brought to you by:	PEBCAK
2007-12-02 19:21:31 +00:00
Doug Barton
e99bdb9937 This commit was generated by cvs2svn to compensate for changes in r174190,
which included commits to RCS files with non-trunk default branches.
2007-12-02 19:17:26 +00:00
Doug Barton
2f4b1e8790 This file is no longer in BIND 9.4.2 2007-12-02 19:17:26 +00:00
Doug Barton
995ea97467 Vendor import of BIND 9.4.2 2007-12-02 19:10:41 +00:00
Doug Barton
56a78b5211 Vendor import of 9.4.1-P1, which has fixes for the following:
1. The default access control lists (acls) are not being
correctly set. If not set anyone can make recursive queries
and/or query the cache contents.

See also:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2925

2. The DNS query id generation is vulnerable to cryptographic
analysis which provides a 1 in 8 chance of guessing the next
query id for 50% of the query ids. This can be used to perform
cache poisoning by an attacker.

This bug only affects outgoing queries, generated by BIND 9 to
answer questions as a resolver, or when it is looking up data
for internal uses, such as when sending NOTIFYs to slave name
servers.

All users are encouraged to upgrade.

See also:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2926

Approved by:	re (kensmith, implicit)
2007-07-25 08:12:36 +00:00
Doug Barton
c197e4d678 Add a custom atomic.h file which implements the C versions of the
code we already have assembly versions of.

Written by:	imp
2007-06-05 22:15:38 +00:00
Doug Barton
d6a1012ea9 Remove from the vendor branch files that are no longer
present in BIND 9.4.1.
2007-06-02 23:29:48 +00:00
Doug Barton
141cfa5029 Vendor import of BIND 9.4.1 2007-06-02 23:21:47 +00:00
Doug Barton
fa5fb0343e Vendor import of BIND 9.3.4 2007-01-29 18:31:57 +00:00
Doug Barton
fcb35ad9ef Remove from the vendor branch files that are no longer in the
9.3.3 sources.
2006-12-10 07:12:50 +00:00
Doug Barton
e99fbbb680 Vendor import of BIND 9.3.3 2006-12-10 07:09:56 +00:00
Doug Barton
a02f92e875 Update to version 9.3.2-P2, which addresses the vulnerability
announced by ISC dated 31 October (delivered via e-mail to the
bind-announce@isc.org list on 2 November):

Description:
        Because of OpenSSL's recently announced vulnerabilities
        (CAN-2006-4339, CVE-2006-2937 and CVE-2006-2940) which affect named,
        we are announcing this workaround and releasing patches.  A proof of
        concept attack on OpenSSL has been demonstrated for CAN-2006-4339.

        OpenSSL is required to use DNSSEC with BIND.

Fix for version 9.3.2-P1 and lower:
        Upgrade to BIND 9.3.2-P2, then generate new RSASHA1 and
        RSAMD5 keys for all old keys using the old default exponent
        and perform a key rollover to these new keys.

        These versions also change the default RSA exponent to be
        65537 which is not vulnerable to the attacks described in
        CAN-2006-4339.
2006-11-04 07:53:25 +00:00
Doug Barton
42b74b2549 Vendor import of BIND 9.3.2-P1, which addresses the following security
vulnerabilities:

http://www.niscc.gov.uk/niscc/docs/re-20060905-00590.pdf?lang=en
2066.  [security]      Handle SIG queries gracefully. [RT #16300]

http://www.kb.cert.org/vuls/id/697164
1941.  [bug]           ncache_adderesult() should set eresult even if no
                       rdataset is passed to it. [RT #15642]

All users of BIND 9 are encouraged to upgrade to this version.
2006-09-06 21:27:11 +00:00
Doug Barton
16cf7c033f Remove files from the vendor branch that are no longer present
in BIND 9.3.2 that were mistakenly removed from HEAD.
2006-01-14 02:11:56 +00:00
Doug Barton
b824835191 After some discussion with the folks at ISC, it turns out that the _ai_pad
part of the structure was a hack to maintain binary compatibility with
Sun binaries, and my understanding is that it's not needed generally
on sparc systems running other operating systems. Therefore, hide this
code behind the same set of tests as in lib/bind/include/netdb.h.

This file is being imported on the vendor branch because a similar change
(or change with similar effect) will be in the next version of BIND 9.

This change will not affect other platforms in any way.
2006-01-04 19:18:43 +00:00
Doug Barton
a00aca3467 Vendor import of BIND 9.3.2 2005-12-29 04:22:58 +00:00
Doug Barton
adaaaab975 Update the vendor branch with a patch to this file that was
researched by glebius, and incorporated by ISC into the next
version of BIND. Unfortunately, it looks like their release
will come after the release of FreeBSD 6, so we will bring
this in now.

The patch addresses a problem with high-load resolvers which
hit memory barriers. Without this patch, running the resolving
name server out of memory would lead to "unpredictable results."

Of course, the canonical answer to this problem is to put more
memory into the system, however that is not always possible, and
the code should be able to handle this situation gracefully in
any case.
2005-08-18 18:39:31 +00:00
Doug Barton
94b2911216 Remove files from the vendor branch that were [re]moved in 9.3.1 2005-03-17 08:10:34 +00:00