{"id":"USN-4938-1","summary":"unbound vulnerabilities","details":"It was discovered that Unbound contained multiple security issues. A\nremote attacker could possibly use these issues to cause a denial of\nservice, inject arbitrary commands, execute arbitrary code, and overwrite\nlocal files.\n","modified":"2026-02-10T04:42:09Z","published":"2021-05-06T12:58:29Z","related":["UBUNTU-CVE-2019-25031","UBUNTU-CVE-2019-25032","UBUNTU-CVE-2019-25033","UBUNTU-CVE-2019-25034","UBUNTU-CVE-2019-25035","UBUNTU-CVE-2019-25036","UBUNTU-CVE-2019-25037","UBUNTU-CVE-2019-25038","UBUNTU-CVE-2019-25039","UBUNTU-CVE-2019-25040","UBUNTU-CVE-2019-25041","UBUNTU-CVE-2019-25042","UBUNTU-CVE-2020-28935"],"upstream":["CVE-2019-25031","CVE-2019-25032","CVE-2019-25033","CVE-2019-25034","CVE-2019-25035","CVE-2019-25036","CVE-2019-25037","CVE-2019-25038","CVE-2019-25039","CVE-2019-25040","CVE-2019-25041","CVE-2019-25042","CVE-2020-28935","UBUNTU-CVE-2019-25031","UBUNTU-CVE-2019-25032","UBUNTU-CVE-2019-25033","UBUNTU-CVE-2019-25034","UBUNTU-CVE-2019-25035","UBUNTU-CVE-2019-25036","UBUNTU-CVE-2019-25037","UBUNTU-CVE-2019-25038","UBUNTU-CVE-2019-25039","UBUNTU-CVE-2019-25040","UBUNTU-CVE-2019-25041","UBUNTU-CVE-2019-25042","UBUNTU-CVE-2020-28935"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4938-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-25031"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-25032"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-25033"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-25034"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-25035"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-25036"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-25037"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-25038"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-25039"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-25040"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-25041"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-25042"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-28935"}],"affected":[{"package":{"name":"unbound","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/unbound@1.6.7-1ubuntu2.4?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.7-1ubuntu2.4"}]}],"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"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libunbound-dev","binary_version":"1.6.7-1ubuntu2.4"},{"binary_name":"libunbound2","binary_version":"1.6.7-1ubuntu2.4"},{"binary_name":"python-unbound","binary_version":"1.6.7-1ubuntu2.4"},{"binary_name":"python3-unbound","binary_version":"1.6.7-1ubuntu2.4"},{"binary_name":"unbound","binary_version":"1.6.7-1ubuntu2.4"},{"binary_name":"unbound-anchor","binary_version":"1.6.7-1ubuntu2.4"},{"binary_name":"unbound-host","binary_version":"1.6.7-1ubuntu2.4"}]},"database_specific":{"cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-25031"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-25032"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-25033"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-25034"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-25035"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-25036"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-25037"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-25038"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-25039"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-25040"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-25041"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-25042"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}],"id":"CVE-2020-28935"}],"ecosystem":"Ubuntu:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4938-1.json"}},{"package":{"name":"unbound","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/unbound@1.9.4-2ubuntu1.2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.4-2ubuntu1.2"}]}],"versions":["1.9.0-2ubuntu1","1.9.0-2ubuntu2","1.9.4-2","1.9.4-2ubuntu1","1.9.4-2ubuntu1.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libunbound-dev","binary_version":"1.9.4-2ubuntu1.2"},{"binary_name":"libunbound8","binary_version":"1.9.4-2ubuntu1.2"},{"binary_name":"python-unbound","binary_version":"1.9.4-2ubuntu1.2"},{"binary_name":"python3-unbound","binary_version":"1.9.4-2ubuntu1.2"},{"binary_name":"unbound","binary_version":"1.9.4-2ubuntu1.2"},{"binary_name":"unbound-anchor","binary_version":"1.9.4-2ubuntu1.2"},{"binary_name":"unbound-host","binary_version":"1.9.4-2ubuntu1.2"}]},"database_specific":{"cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-25031"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-25032"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-25033"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-25034"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-25035"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-25036"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-25037"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-25038"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-25039"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-25040"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-25041"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-25042"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}],"id":"CVE-2020-28935"}],"ecosystem":"Ubuntu:20.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4938-1.json"}}],"schema_version":"1.7.3"}