{"id":"USN-7080-1","summary":"unbound vulnerability","details":"Toshifumi Sakaguchi discovered that Unbound incorrectly handled name \ncompression for large RRsets, which could lead to excessive CPU usage. \nAn attacker could potentially use this issue to cause a denial of service\nby sending specially crafted DNS responses.\n","modified":"2026-04-22T10:53:03.230186Z","published":"2024-10-22T13:09:25Z","related":["UBUNTU-CVE-2024-8508"],"upstream":["CVE-2024-8508","UBUNTU-CVE-2024-8508"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7080-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-8508"}],"affected":[{"package":{"name":"unbound","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/unbound@1.4.22-1ubuntu4.14.04.3+esm2?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.22-1ubuntu4.14.04.3+esm2"}]}],"versions":["1.4.20-1","1.4.21-1","1.4.21-1ubuntu1","1.4.21-1ubuntu2","1.4.22-1ubuntu1","1.4.22-1ubuntu2","1.4.22-1ubuntu3","1.4.22-1ubuntu4","1.4.22-1ubuntu4.14.04.1","1.4.22-1ubuntu4.14.04.2","1.4.22-1ubuntu4.14.04.3","1.4.22-1ubuntu4.14.04.3+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.4.22-1ubuntu4.14.04.3+esm2","binary_name":"libunbound2"},{"binary_version":"1.4.22-1ubuntu4.14.04.3+esm2","binary_name":"python-unbound"},{"binary_version":"1.4.22-1ubuntu4.14.04.3+esm2","binary_name":"unbound"},{"binary_version":"1.4.22-1ubuntu4.14.04.3+esm2","binary_name":"unbound-anchor"},{"binary_version":"1.4.22-1ubuntu4.14.04.3+esm2","binary_name":"unbound-host"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7080-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:14.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2024-8508"}]}}},{"package":{"name":"unbound","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/unbound@1.5.8-1ubuntu1.1+esm2?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.8-1ubuntu1.1+esm2"}]}],"versions":["1.4.22-1ubuntu6","1.5.7-1ubuntu1","1.5.7-1ubuntu2","1.5.8-1ubuntu1","1.5.8-1ubuntu1.1","1.5.8-1ubuntu1.1+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.5.8-1ubuntu1.1+esm2","binary_name":"libunbound2"},{"binary_version":"1.5.8-1ubuntu1.1+esm2","binary_name":"python-unbound"},{"binary_version":"1.5.8-1ubuntu1.1+esm2","binary_name":"unbound"},{"binary_version":"1.5.8-1ubuntu1.1+esm2","binary_name":"unbound-anchor"},{"binary_version":"1.5.8-1ubuntu1.1+esm2","binary_name":"unbound-host"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7080-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2024-8508"}]}}},{"package":{"name":"unbound","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/unbound@1.6.7-1ubuntu2.6+esm3?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.7-1ubuntu2.6+esm3"}]}],"versions":["1.6.5-1","1.6.7-1","1.6.7-1build1","1.6.7-1ubuntu1","1.6.7-1ubuntu2","1.6.7-1ubuntu2.1","1.6.7-1ubuntu2.2","1.6.7-1ubuntu2.3","1.6.7-1ubuntu2.4","1.6.7-1ubuntu2.5","1.6.7-1ubuntu2.6","1.6.7-1ubuntu2.6+esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.6.7-1ubuntu2.6+esm3","binary_name":"libunbound2"},{"binary_version":"1.6.7-1ubuntu2.6+esm3","binary_name":"python-unbound"},{"binary_version":"1.6.7-1ubuntu2.6+esm3","binary_name":"python3-unbound"},{"binary_version":"1.6.7-1ubuntu2.6+esm3","binary_name":"unbound"},{"binary_version":"1.6.7-1ubuntu2.6+esm3","binary_name":"unbound-anchor"},{"binary_version":"1.6.7-1ubuntu2.6+esm3","binary_name":"unbound-host"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7080-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:18.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2024-8508"}]}}},{"package":{"name":"unbound","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/unbound@1.9.4-2ubuntu1.9?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.4-2ubuntu1.9"}]}],"versions":["1.9.0-2ubuntu1","1.9.0-2ubuntu2","1.9.4-2","1.9.4-2ubuntu1","1.9.4-2ubuntu1.1","1.9.4-2ubuntu1.2","1.9.4-2ubuntu1.3","1.9.4-2ubuntu1.4","1.9.4-2ubuntu1.5","1.9.4-2ubuntu1.6","1.9.4-2ubuntu1.8"],"ecosystem_specific":{"binaries":[{"binary_version":"1.9.4-2ubuntu1.9","binary_name":"libunbound8"},{"binary_version":"1.9.4-2ubuntu1.9","binary_name":"python-unbound"},{"binary_version":"1.9.4-2ubuntu1.9","binary_name":"python3-unbound"},{"binary_version":"1.9.4-2ubuntu1.9","binary_name":"unbound"},{"binary_version":"1.9.4-2ubuntu1.9","binary_name":"unbound-anchor"},{"binary_version":"1.9.4-2ubuntu1.9","binary_name":"unbound-host"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7080-1.json","cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2024-8508"}]}}},{"package":{"name":"unbound","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/unbound@1.13.1-1ubuntu5.8?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.1-1ubuntu5.8"}]}],"versions":["1.13.1-1ubuntu1","1.13.1-1ubuntu3","1.13.1-1ubuntu5","1.13.1-1ubuntu5.1","1.13.1-1ubuntu5.2","1.13.1-1ubuntu5.3","1.13.1-1ubuntu5.4","1.13.1-1ubuntu5.5","1.13.1-1ubuntu5.7"],"ecosystem_specific":{"binaries":[{"binary_version":"1.13.1-1ubuntu5.8","binary_name":"libunbound8"},{"binary_version":"1.13.1-1ubuntu5.8","binary_name":"python3-unbound"},{"binary_version":"1.13.1-1ubuntu5.8","binary_name":"unbound"},{"binary_version":"1.13.1-1ubuntu5.8","binary_name":"unbound-anchor"},{"binary_version":"1.13.1-1ubuntu5.8","binary_name":"unbound-host"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7080-1.json","cves_map":{"ecosystem":"Ubuntu:22.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2024-8508"}]}}},{"package":{"name":"unbound","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/unbound@1.19.2-1ubuntu3.3?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.19.2-1ubuntu3.3"}]}],"versions":["1.17.1-2","1.18.0-2ubuntu1","1.18.0-2ubuntu2","1.19.1-1ubuntu1","1.19.2-1ubuntu1","1.19.2-1ubuntu3","1.19.2-1ubuntu3.1","1.19.2-1ubuntu3.2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.19.2-1ubuntu3.3","binary_name":"libunbound8"},{"binary_version":"1.19.2-1ubuntu3.3","binary_name":"python3-unbound"},{"binary_version":"1.19.2-1ubuntu3.3","binary_name":"unbound"},{"binary_version":"1.19.2-1ubuntu3.3","binary_name":"unbound-anchor"},{"binary_version":"1.19.2-1ubuntu3.3","binary_name":"unbound-host"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7080-1.json","cves_map":{"ecosystem":"Ubuntu:24.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2024-8508"}]}}}],"schema_version":"1.7.5"}