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Sicherheit: Mangelnde Prüfung von Zertifikaten in knot-resolver
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Name: Mangelnde Prüfung von Zertifikaten in knot-resolver
ID: FEDORA-2018-fe5a6ed3b7
Distribution: Fedora
Plattformen: Fedora 27
Datum: Di, 27. Februar 2018, 23:03
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1000002


Fedora Update Notification
2018-02-27 17:16:42.082266

Name : knot-resolver
Product : Fedora 27
Version : 2.1.0
Release : 1.fc27
URL : https://www.knot-resolver.cz/
Summary : Caching full DNS Resolver
Description :
The Knot DNS Resolver is a caching full resolver implementation written in C
and LuaJIT, including both a resolver library and a daemon. Modular
architecture of the library keeps the core tiny and efficient, and provides
a state-machine like API for extensions.

The package is pre-configured as local caching resolver.
To start using it, start a single kresd instance:

If you run into issues with activation of the service or its sockets, either
update your selinux-policy package or turn off selinux (setenforce 0).

Update Information:

Knot Resolver 2.1.0 (2018-02-16) ================================ Incompatible
changes -------------------- - stats: remove tracking of expiring records
(predict uses another way) - systemd: re-use a single kresd.socket and kresd-
tls.socket - ta_sentinel: implement protocol draft-ietf-dnsop-kskroll-
sentinel-01 (our draft-ietf-dnsop-kskroll-sentinel-00 implementation had
inverted logic) - libknot: require version 2.6.4 or newer to get bugfixes for
DNS-over-TLS Bugfixes -------- - detect_time_jump module: don't clear
cache on
suspend-resume (#284) - stats module: fix stats.list() returning nothing,
regressed in 2.0.0 - policy.TLS_FORWARD: refusal when configuring with multiple
IPs (#306) - cache: fix broken refresh of insecure records that were about to
expire - fix the hints module on some systems, e.g. Fedora (came back on 2.0.0)
- build with older gnutls (conditionally disable features) - fix the predict
module to work with insecure records & cleanup code Knot Resolver 2.0.0
(2018-01-31) ================================ Incompatible changes
-------------------- - systemd: change unit files to allow running multiple
instances, deployments with single instance now must use `kresd@1.service`
instead of `kresd.service`; see kresd.systemd(7) for details - systemd: the
directory for cache is now /var/cache/knot-resolver - unify default directory
and user to `knot-resolver` - directory with trust anchor file specified by -k
option must be writeable - policy module is now loaded by default to enforce
6761; see documentation for policy.PASS if you use locally-served DNS zones -
drop support for alternative cache backends memcached, redis, and for Lua
bindings for some specific cache operations - REORDER_RR option is not
implemented (temporarily) New features ------------ - aggressive caching of
validated records (RFC 8198) for NSEC zones; thanks to ICANN for sponsoring
this work. - forwarding over TLS, authenticated by SPKI pin or certificate.
policy.TLS_FORWARD pipelines queries out-of-order over shared TLS connection
Beware: Some resolvers do not support out-of-order query processing. TLS
forwarding to such resolvers will lead to slower resolution or failures. -
anchors: you may specify a read-only file via -K or --keyfile-ro - trust
anchors: at build-time you may set KEYFILE_DEFAULT (read-only) - ta_sentinel
module implements draft ietf-dnsop-kskroll-sentinel-00, enabled by default -
serve_stale module is prototype, subject to change - extended API for Lua
modules Bugfixes -------- - fix build on osx - regressed in 1.5.3 (different
linker option name) ---- Knot Resolver 1.5.3 (2018-01-23)
================================ Bugfixes -------- - fix the hints module on
some systems, e.g. Fedora. Symptom: `undefined symbol: engine_hint_root_file`
Knot Resolver 1.5.2 (2018-01-22) ================================ Security
-------- - fix CVE-2018-1000002: insufficient DNSSEC validation, allowing
attackers to deny existence of some data by forging packets. Some
pointed out in RFC 6840 sections 4.1 and 4.3 were not taken into account.
Bugfixes -------- - memcached: fix fallout from module rename in 1.5.1 Knot
Resolver 1.5.1 (2017-12-12) ================================ Incompatible
changes -------------------- - script supervisor.py was removed, please migrate
to a real process manager - module ketcd was renamed to etcd for consistency -
module kmemcached was renamed to memcached for consistency Bugfixes -------- -
fix SIGPIPE crashes (#271) - tests: work around out-of-space for platforms with
larger memory pages - lua: fix mistakes in bindings affecting 1.4.0 and 1.5.0
(and 1.99.1-alpha), potentially causing problems in dns64 and workarounds
modules - predict module: various fixes (!399) Improvements ------------ - add
priming module to implement RFC 8109, enabled by default (#220) - add modules
helping with system time problems, enabled by default; for details see
documentation of detect_time_skew and detect_time_jump

[ 1 ] Bug #1537462 - CVE-2018-1000002 knot-resolver: Insufficient DNSSEC

This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade knot-resolver' at the command line.
For more information, refer to the dnf documentation available at

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