On FreeBSD 10.0, all configuration is installed under
/usr/local/etc/namedb and installs its own rc script in
$PREFIX, which no longer support chroot installations.
LINKS and REPLACE_BASE options are not supported on 10.0
for obvious reasons.
Note for FreeBSD 9.x and earlier users, LINKS is no longer
the default option, though still supported.
An UPDATING entry will follow after bind96 and bind99 are fixed
as well.
"--with-libiconv=${LOCALBASE}" at systems pre OSVERSION 100043 and "" (null)
otherwise;
. convert all ports which has CONFIGURE_ARGS=--with-libiconv=${LOCALBASE}.
Approved by: portmgr (bapt, implicit)
https://kb.isc.org/article/AA-01015/0
9.9.3-p1 -> 9.9.3-P2
9.8.5-p1 -> 9.8.5-P2
9.6.x is not affected, neither is 10.x.
Security: CVE-2013-4854 Remote DOS
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]
A deliberately constructed combination of records could cause
named to hang while populating the additional section of a
response. (CVE-2012-5166) [RT #31090]
Now supports NAPTR regular expression validation on all platforms,
and avoids memory exhaustion compiling pathological regular
expressions. (CVE-2013-2266) [RT #32688]
Prevents named from aborting with a require assertion failure
on servers with DNS64 enabled. These crashes might occur as a
result of specific queries that are received. (CVE-2012-5688)
[RT #30792 / #30996]
Prevents an assertion failure in named when RPZ and DNS64 are
used together. (CVE-2012-5689) [RT #32141]
See release notes for further features and bug fixes:
https://kb.isc.org/article/AA-00969/0/BIND-9.8.5-P1-Release-Notes.html
Security: CVE-2013-3919
CVE-2012-5166
CVE-2013-2266
CVE-2012-5688
CVE-2012-5689
- address the issue raised by Bob Harold. RRL on recursive servers
applies rate limits after waiting for recursion except on
sub-domains of domains for which the server is authoritative.
- fix the bug reported by Roy Arends in which "slipped" NXDOMAIN
responses had rcode values of 0 (NoError) instead of 3 (NXDOMAIN).
- move reports of RRL drop and slip actions from the "queries"
log category to the "query-errors" category. Because they are not
in the "queres" category, enabling or disabling query logging no
longer affects them.
The change makes "slip 1;" send only truncated (TC=1) responses.
Without the change, "slip 1;" is the same as the default of "slip 2;".
That default, which alternates truncated with dropped responses
when the rate limit is exceeded, is better for authoritative DNS
servers, because it further reduces the amplification of an attack
from about 1X to about 0.5X.
DNS RRL is not recommended for recursive servers.
Feature safe: yes
Removed the check for regex.h in configure in order
to disable regex syntax checking, as it exposes
BIND to a critical flaw in libregex on some
platforms. [RT #32688]
Security: CVE-2013-2266
working files that should not have been in the patches[1]
Also move to a versioned filename for the patches[2]
Submitted by: Robert Sargent <robtsgt@gmail.com> [1],
Vernon Schryver <vjs@rhyolite.com> [2]
A serious Multiple Zone Response Policy Zone (RPZ2)
Speed Improvement bug has been fixed.
`./configure --enable-rpz-nsip --enable-rpz-nsdname`
is now the default.
Responses affected by the all-per-second parameter
are always dropped. The slip value has no effect on them.
There are improved log messages for responses that aredropped or "slipped," because they would require an
excessive identical referral.
released version of January 5, 2013.
This also includes performance patches to the BIND9
Response Policy Zones (DNS RPZ), Single Zone Response
Policy Zone (RPZ) Speed Improvement, in the same
patch.
More information: http://ss.vix.su/~vjs/rrlrpz.html
BIND 9 nameservers using the DNS64 IPv6 transition mechanism are
vulnerable to a software defect that allows a crafted query to
crash the server with a REQUIRE assertion failure. Remote
exploitation of this defect can be achieved without extensive
effort, resulting in a denial-of-service (DoS) vector against
affected servers.
Security: 2892a8e2-3d68-11e2-8e01-0800273fe665
CVE-2012-5688
Feature safe: yes
Prevents a crash when queried for a record whose RDATA exceeds
65535 bytes.
Prevents a crash when validating caused by using "Bad cache" data
before it has been initialized.
ISC_QUEUE handling for recursive clients was updated to address
a race condition that could cause a memory leak. This rarely
occurred with UDP clients, but could be a significant problem
for a server handling a steady rate of TCP queries.
A condition has been corrected where improper handling of
zero-length RDATA could cause undesirable behavior, including
termination of the named process.
For more information: https://kb.isc.org/article/AA-00788
in BIND9
High numbers of queries with DNSSEC validation enabled can cause an
assertion failure in named, caused by using a "bad cache" data structure
before it has been initialized.
CVE: CVE-2012-3817
Posting date: 24 July, 2012
from ISC. These patched versions contain a critical bugfix:
Processing of DNS resource records where the rdata field is zero length
may cause various issues for the servers handling them.
Processing of these records may lead to unexpected outcomes. Recursive
servers may crash or disclose some portion of memory to the client.
Secondary servers may crash on restart after transferring a zone
containing these records. Master servers may corrupt zone data if the
zone option "auto-dnssec" is set to "maintain". Other unexpected
problems that are not listed here may also be encountered.
All BIND users are strongly encouraged to upgrade.
the latest from ISC. These versions all contain the following:
Feature Change
* BIND now recognizes the TLSA resource record type, created to
support IETF DANE (DNS-based Authentication of Named Entities)
[RT #28989]
Bug Fix
* The locking strategy around the handling of iterative queries
has been tuned to reduce unnecessary contention in a multi-
threaded environment.
Each version also contains other critical bug fixes.
All BIND users are encouraged to upgrade to these latest versions.
was noticed by ISC at:
https://lists.isc.org/pipermail/bind-users/2012-April/087345.html
and verified by me both by comparing the contents of the old and new
distfiles and by verifying the PGP signature on the new distfile.
No PORTREVISION bump because these files were not installed.
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
Feature safe: yes
- Name
em@i.l
or variations thereof. While I'm here also fix some whitespace and other
formatting errors, including moving WWW: to the last line in the file.
ALL BIND USERS ENCOURAGED TO UPGRADE IMMEDIATELY
This update addresses the following vulnerabilities:
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-2011-2464https://www.isc.org/software/bind/advisories/cve-2011-2464
CVE-2011-2465
=============
Severity: High
Exploitable: Remotely
Description:
A defect in the affected versions of BIND could cause the "named" process
to exit when queried, if the server has recursion enabled and was
configured with an RPZ zone containing certain types of records.
Specifically, these are any DNAME record and certain kinds of CNAME
records.
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2465https://www.isc.org/software/bind/advisories/cve-2011-2465
Additional changes in this version:
* If named is configured to be both authoritative and resursive and
receives a recursive query for a CNAME in a zone that it is
authoritative for, if that CNAME also points to a zone the server
is authoritative for, the recursive part of name will not follow
the CNAME change and the response will not be a complete CNAME
chain. [RT #24455]
Thus the patch for this bug has been removed from the port
* Using Response Policy Zone (RPZ) to query a wildcard CNAME label
with QUERY type SIG/RRSIG, it can cause named to crash. Fix is
query type independant. [RT #24715] [CVE-2011-1907]
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.
Add a patch from ISC that will be in 9.8.1 to handle intermittent
failure of recursive queries involving CNAMEs and previously cached
responses.
Certain response policy zone configurations could trigger an INSIST
when receiving a query of type RRSIG.
https://www.isc.org/CVE-2011-1907
This vulnerability is only possible if you have enable the new RPZ feature.
New features versus previous release candidates include:
* There is a new option in dig, +onesoa, that allows the final SOA
record in an AXFR response to be suppressed. [RT #20929
* There is additional information displayed in the recursing log
(qtype, qclass, qid and whether we are following the original
name). [RT #22043]
* Added option 'resolver-query-timeout' in named.conf (max query
timeout in seconds) to set a different value than the default (30
seconds). A value of 0 means 'use the compiled in default';
anything longer than 30 will be silently set to 30. [RT #22852]
* For Mac OS X, you can now have the test interfaces used during
"make test" stay beyond reboot. See bin/tests/system/README for
details.
There are also numerous bug fixes and enhancements. See
http://ftp.isc.org/isc/bind9/9.8.0/RELEASE-NOTES-BIND-9.8.html
for more information.
* The ADB hash table stores informations about which authoritative
servers to query about particular domains. Previous versions of
BIND had the hash table size as a fixed value. On a busy recursive
server, this could lead to hash table collisions in the ADB cache,
resulting in degraded response time to queries. Bind 9.8 now has a
dynamically scalable ADB hash table, which helps a busy server to
avoid hash table collisions and maintain a consistent query
response time.
