The following CVE updates are included:
* CVE-2021-25219: The "lame-ttl" option is now forcibly set to 0. This
effectively disables the lame server cache, as it could previously be
abused by an attacker to significantly degrade resolver performance.
* CVE-2021-25218: An assertion failure occurred when named attempted
to send a UDP packet that exceeded the MTU size, if Response Rate
Limiting (RRL) was enabled.
Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
Reload the service when interfaces flap; note that libcap support
is required to open new sockets on interfaces coming up during
a reload, otherwise a full restart would be needed.
Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
Fixes the following security issues:
* CVE-2021-25215 - named crashed when a DNAME record placed in the ANSWER
section during DNAME chasing turned out to be the final
answer to a client query.
* CVE-2021-25214 - Insufficient IXFR checks could result in named serving a
zone without an SOA record at the apex, leading to a
RUNTIME_CHECK assertion failure when the zone was
subsequently refreshed. This has been fixed by adding an
owner name check for all SOA records which are included
in a zone transfer.
Signed-off-by: Noah Meyerhans <frodo@morgul.net>
After d18692c, we need to include nls.mk to setup correct
environment variables so that linking succeeds.
Signed-off-by: Michael Heimpold <mhei@heimpold.de>
Drop obsolete patches
- 001-no-tests.patch
- 002-fix-cross-compilation.patch
Move several user-executable binaries from /usr/sbin to /usr/bin per
upstream.
Signed-off-by: Noah Meyerhans <frodo@morgul.net>
Start named before dhcpd so that dhcpd can prime the local zones at startup.
Restore the empty domain zone for rfc1918 addresses that previously existed.
Create an additional subsidiary named.conf.local file (initially empty)
in /tmp/bind/ that can be seeded with dynamic zones and primed with
"rndc reload", and add it to the watched list of config files for procd.
Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
Enable the control port on named that rncd uses to talk to it. Use
rndc to allow for lightweight reloads of some (per-zone) or all of
the database without an interruption of service.
Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
- DNS Flag Day 2020
(default EDNS buffer size changed from 4096 to 1232 bytes)
-- Added patch, which should be part of the next release
It fixes an issue while cross-compilation (I linked it in the commit
message with issue link)
Signed-off-by: Josef Schlehofer <pepe.schlehofer@gmail.com>
Several security issures are addressed:
- CVE-2020-8620 It was possible to trigger an assertion failure by sending
a specially crafted large TCP DNS message.
- CVE-2020-8621 named could crash after failing an assertion check in
certain query resolution scenarios where QNAME minimization and
forwarding were both enabled. To prevent such crashes, QNAME minimization is
now always disabled for a given query resolution process, if forwarders are
used at any point.
- CVE-2020-8622 It was possible to trigger an assertion failure when
verifying the response to a TSIG-signed request.
- CVE-2020-8623 When BIND 9 was compiled with native PKCS#11 support, it
was possible to trigger an assertion failure in code determining the
number of bits in the PKCS#11 RSA public key with a specially crafted
packet.
- CVE-2020-8624 update-policy rules of type subdomain were incorrectly
treated as zonesub rules, which allowed keys used in subdomain rules to
update names outside of the specified subdomains. The problem was fixed by
making sure subdomain rules are again processed as described in the ARM.
Full release notes are available at
https://ftp.isc.org/isc/bind9/9.16.6/doc/arm/html/notes.html#notes-for-bind-9-16-6
Signed-off-by: Noah Meyerhans <frodo@morgul.net>
Add alternative to busybox nslookup. Busybox throws an error when
the host does not have an AAAA record.
Signed-off-by: Ian Cooper <iancooper@hotmail.com>
BIND now requires POSIX thread and IPv6 support to build
Add filter-AAAA plugin
Remove unrecognized options
Remove patch that no longer needed
- 002-autoconf-ar-fix.patch
Signed-off-by: Deng Qingfang <dengqf6@mail2.sysu.edu.cn>
Refresh patches
Remove --enable-static and --enable-dynamic because they're enabled by default
Enable parallel compilation
Fix compile without IPv6
Signed-off-by: Deng Qingfang <dengqf6@mail2.sysu.edu.cn>
A multi-year DNSSEC root key update is in progress, as described at
https://www.isc.org/downloads/bind/bind-keys/. This change refreshes the
bind.keys file, ensuring that the new key, in place as of 2018-10-11,
will be recognized and trusted.
Signed-off-by: Noah Meyerhans <frodo@morgul.net>
delv is a tool for sending DNS queries and validating the results, using the
same internal resolver and validator logic as named.
Signed-off-by: Noah Meyerhans <frodo@morgul.net>
This includes the fix for CVE-2018-5738: When recursion is enabled but the
allow-recursion and allow-query-cache ACLs are not specified, they should be
limited to local networks, but they were inadvertently set to match the default
allow-query, thus allowing remote queries.
Signed-off-by: Noah Meyerhans <frodo@morgul.net>
By default, libatomic is conditionally enabled on some platforms, but it's not
strictly necessary. We'll disable it here globally rather than introduce an
unnecessary dependency.
Signed-off-by: Noah Meyerhans <frodo@morgul.net>
EdDSA support is optional and currently defaults to being disabled.
The following security issues are addressed with this update:
* An error in TSIG handling could permit unauthorized zone transfers
or zone updates. These flaws are disclosed in CVE-2017-3142 and
CVE-2017-3143.
* The BIND installer on Windows used an unquoted service path, which
can enable privilege escalation. This flaw is disclosed in
CVE-2017-3141.
* With certain RPZ configurations, a response with TTL 0 could cause
named to go into an infinite query loop. This flaw is disclosed in
CVE-2017-3140.
* Addresses could be referenced after being freed during resolver
processing, causing an assertion failure. The chances of this
happening were remote, but the introduction of a delay in
resolution increased them. This bug is disclosed in CVE-2017-3145.
Signed-off-by: Noah Meyerhans <frodo@morgul.net>
New upstream release fixes the following security issues:
* CVE-2017-3145: BIND was improperly sequencing cleanup operations on
upstream recursion fetch contexts, leading in some cases to a use-after-free
error that can trigger an assertion failure and crash in named.
Signed-off-by: Noah Meyerhans <frodo@morgul.net>
At least one of libjson|libxml2 is required for bind
statistics to function.
Selecting libjson|libxml2 will result in an additional
dependency required to build and install bind-libs.
Signed-off-by: Hal Martin <hal.martin@gmail.com>
When building on hosts with lmdb installed, bind configure phase fails:
configure: error: found lmdb include but not library.
Solve this by disabling lmdb. Fixes#4748.
Fixes: eab56b6bee ("bind: version update to 9.11.2")
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
New upstream release includes fixes for the following security issues:
* CVE-2017-3140: With certain RPZ configurations, a response with TTL 0 could
cause named to go into an infinite query loop
* CVE-2017-3142: An error in TSIG handling could permit unauthorized zone
transfers or zone updates.
* CVE-2017-3143: An error in TSIG handling could permit unauthorized zone
transfers or zone updates.
Signed-off-by: Noah Meyerhans <frodo@morgul.net>
This change includes fixes for several security issues:
* CVE-2017-3138: rndc "" could trigger an assertion failure in named.
* CVE-2017-3137: Some chaining (i.e., type CNAME or DNAME) responses to
upstream queries could trigger assertion failures.
* CVE-2017-3136: dns64 with break-dnssec yes; can result in an assertion
failure.
* CVE-2017-3135: If a server is configured with a response policy zone
(RPZ) that rewrites an answer with local data, and is also configured
for DNS64 address mapping, a NULL pointer can be read triggering a
server crash.
* CVE-2016-9444: named could mishandle authority sections with missing
RRSIGs, triggering an assertion failure.
* CVE-2016-9131: named mishandled some responses where covering RRSIG
records were returned without the requested data, resulting in an
assertion failure.
* CVE-2016-9131: named incorrectly tried to cache TKEY records which could
trigger an assertion failure when there was a class mismatch.
* CVE-2016-8864: It was possible to trigger assertions when processing
responses containing answers of type DNAME.
* CVE-2016-6170: Added the ability to specify the maximum number of
records permitted in a zone (max-records #;). This provides a mechanism
to block overly large zone transfers, which is a potential risk with
slave zones from other parties.
* CVE-2016-2776: It was possible to trigger an assertion when rendering a
message using a specially crafted request.
* CVE-2016-2775: Calling getrrsetbyname() with a non absolute name could
trigger an infinite recursion bug in lwresd or named with lwres
configured if, when combined with a search list entry from resolv.conf,
the resulting name is too long.
Signed-off-by: Noah Meyerhans <frodo@morgul.net>
This change fixes multiple denial-of-service vulnerabilities:
* CVE-2016-9131: A malformed response to an ANY query can cause an
assertion failure during recursion
* CVE-2016-9147: An error handling a query response containing
inconsistent DNSSEC information could cause an assertion failure
* CVE-2016-9444: An unusually-formed DS record response could cause
an assertion failure
* CVE-2016-9778: An error handling certain queries using the
nxdomain-redirect feature could cause a REQUIRE assertion failure
in db.c
Signed-off-by: Noah Meyerhans <frodo@morgul.net>
If libjson-c is detected during bind-libs configure phase, bind-libs
will be built with libjson support. This results in a missing dependency
error during install phase. Solve this by disabling libjson support.
Philip Prindeville