{"id":"UBUNTU-CVE-2025-8677","details":"Querying for records within a specially crafted zone containing certain malformed DNSKEY records can lead to CPU exhaustion. This issue affects BIND 9 versions 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1.","modified":"2026-02-04T02:56:16.747386Z","published":"2025-10-22T00:00:00Z","related":["USN-7836-1","USN-7836-2"],"upstream":["CVE-2025-8677"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-8677"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-8677"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7836-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7836-2"}],"affected":[{"package":{"name":"bind9","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/bind9@1:9.9.5.dfsg-3ubuntu0.19+esm13?arch=source&distro=esm-infra-legacy/trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:9.9.3.dfsg.P2-4ubuntu1","1:9.9.3.dfsg.P2-4ubuntu2","1:9.9.3.dfsg.P2-4ubuntu3","1:9.9.5.dfsg-2","1:9.9.5.dfsg-3","1:9.9.5.dfsg-3ubuntu0.1","1:9.9.5.dfsg-3ubuntu0.2","1:9.9.5.dfsg-3ubuntu0.3","1:9.9.5.dfsg-3ubuntu0.4","1:9.9.5.dfsg-3ubuntu0.5","1:9.9.5.dfsg-3ubuntu0.6","1:9.9.5.dfsg-3ubuntu0.7","1:9.9.5.dfsg-3ubuntu0.8","1:9.9.5.dfsg-3ubuntu0.9","1:9.9.5.dfsg-3ubuntu0.10","1:9.9.5.dfsg-3ubuntu0.11","1:9.9.5.dfsg-3ubuntu0.12","1:9.9.5.dfsg-3ubuntu0.13","1:9.9.5.dfsg-3ubuntu0.14","1:9.9.5.dfsg-3ubuntu0.15","1:9.9.5.dfsg-3ubuntu0.16","1:9.9.5.dfsg-3ubuntu0.17","1:9.9.5.dfsg-3ubuntu0.18","1:9.9.5.dfsg-3ubuntu0.19","1:9.9.5.dfsg-3ubuntu0.19+esm1","1:9.9.5.dfsg-3ubuntu0.19+esm2","1:9.9.5.dfsg-3ubuntu0.19+esm3","1:9.9.5.dfsg-3ubuntu0.19+esm4","1:9.9.5.dfsg-3ubuntu0.19+esm5","1:9.9.5.dfsg-3ubuntu0.19+esm6","1:9.9.5.dfsg-3ubuntu0.19+esm7","1:9.9.5.dfsg-3ubuntu0.19+esm9","1:9.9.5.dfsg-3ubuntu0.19+esm10","1:9.9.5.dfsg-3ubuntu0.19+esm11","1:9.9.5.dfsg-3ubuntu0.19+esm12","1:9.9.5.dfsg-3ubuntu0.19+esm13"],"ecosystem_specific":{"binaries":[{"binary_name":"bind9","binary_version":"1:9.9.5.dfsg-3ubuntu0.19+esm13"},{"binary_name":"bind9-host","binary_version":"1:9.9.5.dfsg-3ubuntu0.19+esm13"},{"binary_name":"bind9utils","binary_version":"1:9.9.5.dfsg-3ubuntu0.19+esm13"},{"binary_name":"dnsutils","binary_version":"1:9.9.5.dfsg-3ubuntu0.19+esm13"},{"binary_name":"host","binary_version":"1:9.9.5.dfsg-3ubuntu0.19+esm13"},{"binary_name":"libbind-dev","binary_version":"1:9.9.5.dfsg-3ubuntu0.19+esm13"},{"binary_name":"libbind9-90","binary_version":"1:9.9.5.dfsg-3ubuntu0.19+esm13"},{"binary_name":"libdns100","binary_version":"1:9.9.5.dfsg-3ubuntu0.19+esm13"},{"binary_name":"libisc95","binary_version":"1:9.9.5.dfsg-3ubuntu0.19+esm13"},{"binary_name":"libisccc90","binary_version":"1:9.9.5.dfsg-3ubuntu0.19+esm13"},{"binary_name":"libisccfg90","binary_version":"1:9.9.5.dfsg-3ubuntu0.19+esm13"},{"binary_name":"liblwres90","binary_version":"1:9.9.5.dfsg-3ubuntu0.19+esm13"},{"binary_name":"lwresd","binary_version":"1:9.9.5.dfsg-3ubuntu0.19+esm13"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-8677.json"}},{"package":{"name":"bind9","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/bind9@1:9.10.3.dfsg.P4-8ubuntu1.19+esm9?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:9.9.5.dfsg-11ubuntu1","1:9.9.5.dfsg-12","1:9.9.5.dfsg-12.1","1:9.9.5.dfsg-12.1ubuntu1","1:9.10.3.dfsg.P2-4","1:9.10.3.dfsg.P2-5","1:9.10.3.dfsg.P4-3","1:9.10.3.dfsg.P4-4","1:9.10.3.dfsg.P4-5","1:9.10.3.dfsg.P4-8","1:9.10.3.dfsg.P4-8ubuntu1","1:9.10.3.dfsg.P4-8ubuntu1.1","1:9.10.3.dfsg.P4-8ubuntu1.2","1:9.10.3.dfsg.P4-8ubuntu1.3","1:9.10.3.dfsg.P4-8ubuntu1.4","1:9.10.3.dfsg.P4-8ubuntu1.5","1:9.10.3.dfsg.P4-8ubuntu1.6","1:9.10.3.dfsg.P4-8ubuntu1.7","1:9.10.3.dfsg.P4-8ubuntu1.8","1:9.10.3.dfsg.P4-8ubuntu1.9","1:9.10.3.dfsg.P4-8ubuntu1.10","1:9.10.3.dfsg.P4-8ubuntu1.11","1:9.10.3.dfsg.P4-8ubuntu1.12","1:9.10.3.dfsg.P4-8ubuntu1.14","1:9.10.3.dfsg.P4-8ubuntu1.15","1:9.10.3.dfsg.P4-8ubuntu1.16","1:9.10.3.dfsg.P4-8ubuntu1.17","1:9.10.3.dfsg.P4-8ubuntu1.18","1:9.10.3.dfsg.P4-8ubuntu1.19","1:9.10.3.dfsg.P4-8ubuntu1.19+esm1","1:9.10.3.dfsg.P4-8ubuntu1.19+esm2","1:9.10.3.dfsg.P4-8ubuntu1.19+esm3","1:9.10.3.dfsg.P4-8ubuntu1.19+esm5","1:9.10.3.dfsg.P4-8ubuntu1.19+esm6","1:9.10.3.dfsg.P4-8ubuntu1.19+esm7","1:9.10.3.dfsg.P4-8ubuntu1.19+esm8","1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"],"ecosystem_specific":{"binaries":[{"binary_name":"bind9","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"},{"binary_name":"bind9-host","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"},{"binary_name":"bind9utils","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"},{"binary_name":"dnsutils","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"},{"binary_name":"host","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"},{"binary_name":"libbind-dev","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"},{"binary_name":"libbind-export-dev","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"},{"binary_name":"libbind9-140","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"},{"binary_name":"libdns-export162","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"},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