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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.3522 Security update for bind 14 October 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: bind Publisher: SUSE Operating System: SUSE Impact/Access: Denial of Service -- Remote/Unauthenticated Reduced Security -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2020-8624 CVE-2020-8623 CVE-2020-8622 CVE-2020-8621 CVE-2020-8620 CVE-2020-8619 CVE-2020-8618 CVE-2020-8617 CVE-2020-8616 CVE-2019-6477 CVE-2018-5741 CVE-2017-3136 Reference: ESB-2020.3463 ESB-2020.2977 Original Bulletin: https://www.suse.com/support/update/announcement/2020/suse-su-20202914-1 - --------------------------BEGIN INCLUDED TEXT-------------------- SUSE Security Update: Security update for bind ______________________________________________________________________________ Announcement ID: SUSE-SU-2020:2914-1 Rating: moderate References: #1100369 #1109160 #1118367 #1118368 #1128220 #1156205 #1157051 #1161168 #1170667 #1170713 #1171313 #1171740 #1172958 #1173307 #1173311 #1173983 #1175443 #1176092 #1176674 #906079 Cross-References: CVE-2017-3136 CVE-2018-5741 CVE-2019-6477 CVE-2020-8616 CVE-2020-8617 CVE-2020-8618 CVE-2020-8619 CVE-2020-8620 CVE-2020-8621 CVE-2020-8622 CVE-2020-8623 CVE-2020-8624 Affected Products: SUSE Linux Enterprise Server for SAP 15 SUSE Linux Enterprise Server 15-LTSS SUSE Linux Enterprise Module for Server Applications 15-SP2 SUSE Linux Enterprise Module for Server Applications 15-SP1 SUSE Linux Enterprise Module for Development Tools 15-SP2 SUSE Linux Enterprise Module for Basesystem 15-SP2 SUSE Linux Enterprise Module for Basesystem 15-SP1 SUSE Linux Enterprise High Performance Computing 15-LTSS SUSE Linux Enterprise High Performance Computing 15-ESPOS ______________________________________________________________________________ An update that solves 12 vulnerabilities, contains one feature and has 8 fixes is now available. Description: This update for bind fixes the following issues: BIND was upgraded to version 9.16.6: Note: o bind is now more strict in regards to DNSSEC. If queries are not working, check for DNSSEC issues. For instance, if bind is used in a namserver forwarder chain, the forwarding DNS servers must support DNSSEC. Fixing security issues: o CVE-2020-8616: Further limit the number of queries that can be triggered from a request. Root and TLD servers are no longer exempt from max-recursion-queries. Fetches for missing name server. (bsc#1171740) Address records are limited to 4 for any domain. o CVE-2020-8617: Replaying a TSIG BADTIME response as a request could trigger an assertion failure. (bsc#1171740) o CVE-2019-6477: Fixed an issue where TCP-pipelined queries could bypass the tcp-clients limit (bsc#1157051). o CVE-2018-5741: Fixed the documentation (bsc#1109160). o CVE-2020-8618: It was possible to trigger an INSIST when determining whether a record would fit into a TCP message buffer (bsc#1172958). o CVE-2020-8619: It was possible to trigger an INSIST in lib/dns/ rbtdb.c:new_reference() with a particular zone content and query patterns (bsc#1172958). o 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 (bsc#1175443). o 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 (bsc# 1175443). o CVE-2020-8621: named could crash in certain query resolution scenarios where QNAME minimization and forwarding were both enabled (bsc#1175443). o CVE-2020-8620: It was possible to trigger an assertion failure by sending a specially crafted large TCP DNS message (bsc#1175443). o CVE-2020-8622: It was possible to trigger an assertion failure when verifying the response to a TSIG-signed request (bsc#1175443). Other issues fixed: o Add engine support to OpenSSL EdDSA implementation. o Add engine support to OpenSSL ECDSA implementation. o Update PKCS#11 EdDSA implementation to PKCS#11 v3.0. o Warn about AXFR streams with inconsistent message IDs. o Make ISC rwlock implementation the default again. o Fixed issues when using cookie-secrets for AES and SHA2 (bsc#1161168) o Installed the default files in /var/lib/named and created chroot environment on systems using transactional-updates (bsc#1100369, fate# 325524) o Fixed an issue where bind was not working in FIPS mode (bsc#906079). o Fixed dependency issues (bsc#1118367 and bsc#1118368). o GeoIP support is now discontinued, now GeoIP2 is used(bsc#1156205). o Fixed an issue with FIPS (bsc#1128220). o The liblwres library is discontinued upstream and is no longer included. o Added service dependency on NTP to make sure the clock is accurate when bind is starts (bsc#1170667, bsc#1170713). o Reject DS records at the zone apex when loading master files. Log but otherwise ignore attempts to add DS records at the zone apex via UPDATE. o The default value of "max-stale-ttl" has been changed from 1 week to 12 hours. o Zone timers are now exported via statistics channel. o The "primary" and "secondary" keywords, when used as parameters for "check-names", were not processed correctly and were being ignored. o 'rndc dnstap -roll ' did not limit the number of saved files to . o Add 'rndc dnssec -status' command. o Addressed a couple of situations where named could crash. o Changed /var/lib/named to owner root:named and perms rwxrwxr-t so that named, being a/the only member of the "named" group has full r/w access yet cannot change directories owned by root in the case of a compromized named. [bsc#1173307, bind-chrootenv.conf] o Added "/etc/bind.keys" to NAMED_CONF_INCLUDE_FILES in /etc/sysconfig/named to suppress warning message re missing file (bsc#1173983). o Removed "-r /dev/urandom" from all invocations of rndc-confgen (init/named system/lwresd.init system/named.init in vendor-files) as this option is deprecated and causes rndc-confgen to fail. (bsc#1173311, bsc#1176674, bsc# 1170713) o /usr/bin/genDDNSkey: Removing the use of the -r option in the call of /usr/ sbin/dnssec-keygen as BIND now uses the random number functions provided by the crypto library (i.e., OpenSSL or a PKCS#11 provider) as a source of randomness rather than /dev/random. Therefore the -r command line option no longer has any effect on dnssec-keygen. Leaving the option in genDDNSkey as to not break compatibility. Patch provided by Stefan Eisenwiener. [bsc# 1171313] o Put libns into a separate subpackage to avoid file conflicts in the libisc subpackage due to different sonums (bsc#1176092). o Require /sbin/start_daemon: both init scripts, the one used in systemd context as well as legacy sysv, make use of start_daemon. Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: o SUSE Linux Enterprise Server for SAP 15: zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-2020-2914=1 o SUSE Linux Enterprise Server 15-LTSS: zypper in -t patch SUSE-SLE-Product-SLES-15-2020-2914=1 o SUSE Linux Enterprise Module for Server Applications 15-SP2: zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP2-2020-2914=1 o SUSE Linux Enterprise Module for Server Applications 15-SP1: zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP1-2020-2914=1 o SUSE Linux Enterprise Module for Development Tools 15-SP2: zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP2-2020-2914=1 o SUSE Linux Enterprise Module for Basesystem 15-SP2: zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2020-2914=1 o SUSE Linux Enterprise Module for Basesystem 15-SP1: zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP1-2020-2914=1 o SUSE Linux Enterprise High Performance Computing 15-LTSS: zypper in -t patch SUSE-SLE-Product-HPC-15-2020-2914=1 o SUSE Linux Enterprise High Performance Computing 15-ESPOS: zypper in -t patch SUSE-SLE-Product-HPC-15-2020-2914=1 Package List: o SUSE Linux Enterprise Server for SAP 15 (ppc64le x86_64): bind-9.16.6-12.32.1 bind-chrootenv-9.16.6-12.32.1 bind-debuginfo-9.16.6-12.32.1 bind-debugsource-9.16.6-12.32.1 bind-devel-9.16.6-12.32.1 bind-utils-9.16.6-12.32.1 bind-utils-debuginfo-9.16.6-12.32.1 libbind9-1600-9.16.6-12.32.1 libbind9-1600-debuginfo-9.16.6-12.32.1 libdns1605-9.16.6-12.32.1 libdns1605-debuginfo-9.16.6-12.32.1 libirs-devel-9.16.6-12.32.1 libirs1601-9.16.6-12.32.1 libirs1601-debuginfo-9.16.6-12.32.1 libisc1606-9.16.6-12.32.1 libisc1606-debuginfo-9.16.6-12.32.1 libisccc1600-9.16.6-12.32.1 libisccc1600-debuginfo-9.16.6-12.32.1 libisccfg1600-9.16.6-12.32.1 libisccfg1600-debuginfo-9.16.6-12.32.1 libns1604-9.16.6-12.32.1 libns1604-debuginfo-9.16.6-12.32.1 o SUSE Linux Enterprise Server for SAP 15 (noarch): bind-doc-9.16.6-12.32.1 python3-bind-9.16.6-12.32.1 sysuser-shadow-2.0-4.2.8 sysuser-tools-2.0-4.2.8 o SUSE Linux Enterprise Server 15-LTSS (aarch64 s390x): bind-9.16.6-12.32.1 bind-chrootenv-9.16.6-12.32.1 bind-debuginfo-9.16.6-12.32.1 bind-debugsource-9.16.6-12.32.1 bind-devel-9.16.6-12.32.1 bind-utils-9.16.6-12.32.1 bind-utils-debuginfo-9.16.6-12.32.1 libbind9-1600-9.16.6-12.32.1 libbind9-1600-debuginfo-9.16.6-12.32.1 libdns1605-9.16.6-12.32.1 libdns1605-debuginfo-9.16.6-12.32.1 libirs-devel-9.16.6-12.32.1 libirs1601-9.16.6-12.32.1 libirs1601-debuginfo-9.16.6-12.32.1 libisc1606-9.16.6-12.32.1 libisc1606-debuginfo-9.16.6-12.32.1 libisccc1600-9.16.6-12.32.1 libisccc1600-debuginfo-9.16.6-12.32.1 libisccfg1600-9.16.6-12.32.1 libisccfg1600-debuginfo-9.16.6-12.32.1 libns1604-9.16.6-12.32.1 libns1604-debuginfo-9.16.6-12.32.1 o SUSE Linux Enterprise Server 15-LTSS (noarch): bind-doc-9.16.6-12.32.1 python3-bind-9.16.6-12.32.1 sysuser-shadow-2.0-4.2.8 sysuser-tools-2.0-4.2.8 o SUSE Linux Enterprise Module for Server Applications 15-SP2 (aarch64 ppc64le s390x x86_64): bind-9.16.6-12.32.1 bind-chrootenv-9.16.6-12.32.1 bind-debuginfo-9.16.6-12.32.1 bind-debugsource-9.16.6-12.32.1 o SUSE Linux Enterprise Module for Server Applications 15-SP2 (noarch): bind-doc-9.16.6-12.32.1 o SUSE Linux Enterprise Module for Server Applications 15-SP1 (aarch64 ppc64le s390x x86_64): bind-9.16.6-12.32.1 bind-chrootenv-9.16.6-12.32.1 bind-debuginfo-9.16.6-12.32.1 bind-debugsource-9.16.6-12.32.1 o SUSE Linux Enterprise Module for Server Applications 15-SP1 (noarch): bind-doc-9.16.6-12.32.1 o SUSE Linux Enterprise Module for Development Tools 15-SP2 (noarch): sysuser-tools-2.0-4.2.8 o SUSE Linux Enterprise Module for Basesystem 15-SP2 (aarch64 ppc64le s390x x86_64): bind-debuginfo-9.16.6-12.32.1 bind-debugsource-9.16.6-12.32.1 bind-devel-9.16.6-12.32.1 bind-utils-9.16.6-12.32.1 bind-utils-debuginfo-9.16.6-12.32.1 libbind9-1600-9.16.6-12.32.1 libbind9-1600-debuginfo-9.16.6-12.32.1 libdns1605-9.16.6-12.32.1 libdns1605-debuginfo-9.16.6-12.32.1 libirs-devel-9.16.6-12.32.1 libirs1601-9.16.6-12.32.1 libirs1601-debuginfo-9.16.6-12.32.1 libisc1606-9.16.6-12.32.1 libisc1606-debuginfo-9.16.6-12.32.1 libisccc1600-9.16.6-12.32.1 libisccc1600-debuginfo-9.16.6-12.32.1 libisccfg1600-9.16.6-12.32.1 libisccfg1600-debuginfo-9.16.6-12.32.1 libns1604-9.16.6-12.32.1 libns1604-debuginfo-9.16.6-12.32.1 o SUSE Linux Enterprise Module for Basesystem 15-SP2 (noarch): python3-bind-9.16.6-12.32.1 sysuser-shadow-2.0-4.2.8 o SUSE Linux Enterprise Module for Basesystem 15-SP1 (aarch64 ppc64le s390x x86_64): bind-debuginfo-9.16.6-12.32.1 bind-debugsource-9.16.6-12.32.1 bind-devel-9.16.6-12.32.1 bind-utils-9.16.6-12.32.1 bind-utils-debuginfo-9.16.6-12.32.1 libbind9-1600-9.16.6-12.32.1 libbind9-1600-debuginfo-9.16.6-12.32.1 libdns1605-9.16.6-12.32.1 libdns1605-debuginfo-9.16.6-12.32.1 libirs-devel-9.16.6-12.32.1 libirs1601-9.16.6-12.32.1 libirs1601-debuginfo-9.16.6-12.32.1 libisc1606-9.16.6-12.32.1 libisc1606-debuginfo-9.16.6-12.32.1 libisccc1600-9.16.6-12.32.1 libisccc1600-debuginfo-9.16.6-12.32.1 libisccfg1600-9.16.6-12.32.1 libisccfg1600-debuginfo-9.16.6-12.32.1 libns1604-9.16.6-12.32.1 libns1604-debuginfo-9.16.6-12.32.1 o SUSE Linux Enterprise Module for Basesystem 15-SP1 (noarch): python3-bind-9.16.6-12.32.1 sysuser-shadow-2.0-4.2.8 sysuser-tools-2.0-4.2.8 o SUSE Linux Enterprise High Performance Computing 15-LTSS (aarch64 x86_64): bind-9.16.6-12.32.1 bind-chrootenv-9.16.6-12.32.1 bind-debuginfo-9.16.6-12.32.1 bind-debugsource-9.16.6-12.32.1 bind-devel-9.16.6-12.32.1 bind-utils-9.16.6-12.32.1 bind-utils-debuginfo-9.16.6-12.32.1 libbind9-1600-9.16.6-12.32.1 libbind9-1600-debuginfo-9.16.6-12.32.1 libdns1605-9.16.6-12.32.1 libdns1605-debuginfo-9.16.6-12.32.1 libirs-devel-9.16.6-12.32.1 libirs1601-9.16.6-12.32.1 libirs1601-debuginfo-9.16.6-12.32.1 libisc1606-9.16.6-12.32.1 libisc1606-debuginfo-9.16.6-12.32.1 libisccc1600-9.16.6-12.32.1 libisccc1600-debuginfo-9.16.6-12.32.1 libisccfg1600-9.16.6-12.32.1 libisccfg1600-debuginfo-9.16.6-12.32.1 libns1604-9.16.6-12.32.1 libns1604-debuginfo-9.16.6-12.32.1 o SUSE Linux Enterprise High Performance Computing 15-LTSS (noarch): bind-doc-9.16.6-12.32.1 python3-bind-9.16.6-12.32.1 sysuser-shadow-2.0-4.2.8 sysuser-tools-2.0-4.2.8 o SUSE Linux Enterprise High Performance Computing 15-ESPOS (aarch64 x86_64): bind-9.16.6-12.32.1 bind-chrootenv-9.16.6-12.32.1 bind-debuginfo-9.16.6-12.32.1 bind-debugsource-9.16.6-12.32.1 bind-devel-9.16.6-12.32.1 bind-utils-9.16.6-12.32.1 bind-utils-debuginfo-9.16.6-12.32.1 libbind9-1600-9.16.6-12.32.1 libbind9-1600-debuginfo-9.16.6-12.32.1 libdns1605-9.16.6-12.32.1 libdns1605-debuginfo-9.16.6-12.32.1 libirs-devel-9.16.6-12.32.1 libirs1601-9.16.6-12.32.1 libirs1601-debuginfo-9.16.6-12.32.1 libisc1606-9.16.6-12.32.1 libisc1606-debuginfo-9.16.6-12.32.1 libisccc1600-9.16.6-12.32.1 libisccc1600-debuginfo-9.16.6-12.32.1 libisccfg1600-9.16.6-12.32.1 libisccfg1600-debuginfo-9.16.6-12.32.1 libns1604-9.16.6-12.32.1 libns1604-debuginfo-9.16.6-12.32.1 o SUSE Linux Enterprise High Performance Computing 15-ESPOS (noarch): bind-doc-9.16.6-12.32.1 python3-bind-9.16.6-12.32.1 sysuser-shadow-2.0-4.2.8 sysuser-tools-2.0-4.2.8 References: o https://www.suse.com/security/cve/CVE-2017-3136.html o https://www.suse.com/security/cve/CVE-2018-5741.html o https://www.suse.com/security/cve/CVE-2019-6477.html o https://www.suse.com/security/cve/CVE-2020-8616.html o https://www.suse.com/security/cve/CVE-2020-8617.html o https://www.suse.com/security/cve/CVE-2020-8618.html o https://www.suse.com/security/cve/CVE-2020-8619.html o https://www.suse.com/security/cve/CVE-2020-8620.html o https://www.suse.com/security/cve/CVE-2020-8621.html o https://www.suse.com/security/cve/CVE-2020-8622.html o https://www.suse.com/security/cve/CVE-2020-8623.html o https://www.suse.com/security/cve/CVE-2020-8624.html o https://bugzilla.suse.com/1100369 o https://bugzilla.suse.com/1109160 o https://bugzilla.suse.com/1118367 o https://bugzilla.suse.com/1118368 o https://bugzilla.suse.com/1128220 o https://bugzilla.suse.com/1156205 o https://bugzilla.suse.com/1157051 o https://bugzilla.suse.com/1161168 o https://bugzilla.suse.com/1170667 o https://bugzilla.suse.com/1170713 o https://bugzilla.suse.com/1171313 o https://bugzilla.suse.com/1171740 o https://bugzilla.suse.com/1172958 o https://bugzilla.suse.com/1173307 o https://bugzilla.suse.com/1173311 o https://bugzilla.suse.com/1173983 o https://bugzilla.suse.com/1175443 o https://bugzilla.suse.com/1176092 o https://bugzilla.suse.com/1176674 o https://bugzilla.suse.com/906079 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBX4aBB+NLKJtyKPYoAQilmA/9GLZrDTp7ZtxQmVq3ybjdJvvfF4bCzQ48 3TM3ifhq7TubCQcuWoG2uF7ItZAWDX6AEHDosek2cuInoLFCBhsmbrxc+IhdI8ZU 1Jx2PRtJ/ROmQF/aOe6BGCe3CZ0d9TDiuwYIm6Z0DspKpTGMckli6OSayOcqiTua V57VnG13WI8ZvTjzR5z6VjLuIaU7Rtl98X56JWg+L7MDMO3K6h8qufQnxya2ImL9 G4HUOOAA0l7CqgNm3rCK5XVJUewSEJvmKy/DrSy0L6h0fNH4hYlP0PdAv6igGqwo dXJzUUUIj3tw2wL/UKPFMxpFsm2MetKZyYgB7QeUMqjh1H+dYB7g1/lc/+gUUQ6P wDarpYNLv5pbJWYgH/jS0pVk8Wx2H8pR4WDeA3iHhhkwAisM0m/VG3uawznn0MWF HZ/cUq0jf8+CZgmRGpP1psd0XO3cSSC8aWp90OPmL/sMD0zpzPFnRG5RmT7ok6FL sWjA/cEPzzqJU1ZQNbRlp3EPv6pyeSsASSZUVCTjoEN/IJ6cUhUHBVwocbOjz404 0UxUCNnJmIOU+7jKprrEMEt/osnPviW8UtIiBs5jG4UfzitNUf5/IxD4hg4RzTpx sYlLdrFQmqq1aQqUEY7ypC28m3bEYT9eKGMXzP4/CS3ZkfOXgCBajc36378Xy85P E3hrieYzoqM= =klM1 -----END PGP SIGNATURE-----