{"id":"ALSA-2026:75578","summary":"Important: bind9.18 security update","details":"BIND (Berkeley Internet Name Domain) is an implementation of the DNS (Domain Name System) protocols. BIND includes a DNS server (named), which resolves host names to IP addresses; a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating properly.  \n\nSecurity Fix(es):  \n\n  * bind: BIND 9: Remote Denial of Service via cached SVCB/HTTPS AliasMode records (CVE-2026-81736)\n  * bind9: bind: BIND 9: Denial of Service via 16-bit length truncation in DNS negative cache handling (CVE-2026-19667)\n  * bind: BIND resolver: Denial of Service due to resource exhaustion in SVCB/HTTPS AliasMode processing (CVE-2026-81563)\n  * bind: BIND: Denial of Service via crafted DNSSEC reply (CVE-2026-80274)\n  * bind: BIND: Denial of Service via malformed DNS64 responses (CVE-2026-19666)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","modified":"2026-10-13T13:42:08.103151791Z","published":"2026-10-05T00:00:00Z","related":["CVE-2026-19666","CVE-2026-19667","CVE-2026-80274","CVE-2026-81563","CVE-2026-81736"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:75578"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-19666"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-19667"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-80274"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-81563"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-81736"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2535432"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2535435"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2535461"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2535466"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2535477"},{"type":"ADVISORY","url":"https://errata.almalinux.org/9/ALSA-2026-75578.html"}],"affected":[{"package":{"name":"bind9.18","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/bind9.18"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"32:9.18.29-14.el9_8.10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:75578.json"}},{"package":{"name":"bind9.18-chroot","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/bind9.18-chroot"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"32:9.18.29-14.el9_8.10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:75578.json"}},{"package":{"name":"bind9.18-devel","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/bind9.18-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"32:9.18.29-14.el9_8.10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:75578.json"}},{"package":{"name":"bind9.18-dnssec-utils","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/bind9.18-dnssec-utils"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"32:9.18.29-14.el9_8.10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:75578.json"}},{"package":{"name":"bind9.18-doc","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/bind9.18-doc"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"32:9.18.29-14.el9_8.10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:75578.json"}},{"package":{"name":"bind9.18-libs","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/bind9.18-libs"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"32:9.18.29-14.el9_8.10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:75578.json"}},{"package":{"name":"bind9.18-utils","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/bind9.18-utils"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"32:9.18.29-14.el9_8.10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:75578.json"}}],"schema_version":"1.9.0"}