{"id":"CLSA-2026-1790158621","summary":"Fix CVE(s): CVE-2026-5946","details":"   * SECURITY UPDATE: assertion failures in named when handling DNS messages\n     whose CLASS is not IN or that use the meta-classes ANY or NONE\n     - debian/patches/CVE-2026-5946-1.patch: force recursion off and set the\n       allow-recursion ACLs to none for views with a class other than IN\n     - debian/patches/CVE-2026-5946-2.patch: return NOTIMP for UPDATE and\n       NOTIFY in non-IN views, check the class before treating WKS rdata as\n       class IN, and assert that updated zones are class IN\n     - debian/patches/CVE-2026-5946-3.patch: validate the message CLASS early,\n       returning NOTIMP for unsupported classes and FORMERR for NONE outside\n       UPDATE and ANY outside TKEY negotiation\n     - debian/patches/CVE-2026-5946-4.patch: reject UPDATE and NOTIFY messages\n       whose question class is ANY or NONE with FORMERR\n     - debian/patches/CVE-2026-5946-5.patch: skip deny-answer-address matching\n       for non-IN address records\n     - CVE-2026-5946","modified":"2026-10-26T09:32:02.425169694Z","published":"2026-09-23T10:17:11Z","upstream":["CVE-2026-5946"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/ubuntu16.04els/CLSA-2026-1790158621.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-5946"}],"affected":[{"package":{"name":"bind9","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/bind9?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:9.10.3.dfsg.P4-8ubuntu1.19+tuxcare.els13"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1790158621.json"}},{"package":{"name":"bind9-doc","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/bind9-doc?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:9.10.3.dfsg.P4-8ubuntu1.19+tuxcare.els13"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1790158621.json"}},{"package":{"name":"bind9-host","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/bind9-host?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:9.10.3.dfsg.P4-8ubuntu1.19+tuxcare.els13"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1790158621.json"}},{"package":{"name":"bind9utils","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/bind9utils?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:9.10.3.dfsg.P4-8ubuntu1.19+tuxcare.els13"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1790158621.json"}},{"package":{"name":"dnsutils","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/dnsutils?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:9.10.3.dfsg.P4-8ubuntu1.19+tuxcare.els13"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1790158621.json"}},{"package":{"name":"host","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/host?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:9.10.3.dfsg.P4-8ubuntu1.19+tuxcare.els13"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1790158621.json"}},{"package":{"name":"libbind-dev","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/libbind-dev?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:9.10.3.dfsg.P4-8ubuntu1.19+tuxcare.els13"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1790158621.json"}},{"package":{"name":"libbind-export-dev","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/libbind-export-dev?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:9.10.3.dfsg.P4-8ubuntu1.19+tuxcare.els13"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1790158621.json"}},{"package":{"name":"libbind9-140","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/libbind9-140?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:9.10.3.dfsg.P4-8ubuntu1.19+tuxcare.els13"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1790158621.json"}},{"package":{"name":"libdns-export162","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/libdns-export162?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:9.10.3.dfsg.P4-8ubuntu1.19+tuxcare.els13"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1790158621.json"}},{"package":{"name":"libdns162","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/libdns162?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:9.10.3.dfsg.P4-8ubuntu1.19+tuxcare.els13"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1790158621.json"}},{"package":{"name":"libirs-export141","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/libirs-export141?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:9.10.3.dfsg.P4-8ubuntu1.19+tuxcare.els13"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1790158621.json"}},{"package":{"name":"libirs141","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/libirs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