{"id":"USN-4263-1","summary":"sudo vulnerability","details":"Joe Vennix discovered that Sudo incorrectly handled memory operations when\nthe pwfeedback option is enabled. A local attacker could possibly use this\nissue to obtain unintended access to the administrator account.\n","modified":"2026-02-10T04:41:46Z","published":"2020-02-03T13:19:16Z","related":["UBUNTU-CVE-2019-18634"],"upstream":["CVE-2019-18634","UBUNTU-CVE-2019-18634"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4263-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-18634"}],"affected":[{"package":{"name":"sudo","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/sudo@1.8.16-0ubuntu1.9?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.16-0ubuntu1.9"}]}],"versions":["1.8.12-1ubuntu3","1.8.16-0ubuntu1","1.8.16-0ubuntu1.1","1.8.16-0ubuntu1.2","1.8.16-0ubuntu1.3","1.8.16-0ubuntu1.4","1.8.16-0ubuntu1.5","1.8.16-0ubuntu1.6","1.8.16-0ubuntu1.7","1.8.16-0ubuntu1.8"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1.8.16-0ubuntu1.9","binary_name":"sudo"},{"binary_version":"1.8.16-0ubuntu1.9","binary_name":"sudo-ldap"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2019-18634","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}]}],"ecosystem":"Ubuntu:16.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4263-1.json"}},{"package":{"name":"sudo","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/sudo@1.8.21p2-3ubuntu1.2?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.21p2-3ubuntu1.2"}]}],"versions":["1.8.20p2-1ubuntu1","1.8.21p2-2ubuntu1","1.8.21p2-3ubuntu1","1.8.21p2-3ubuntu1.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1.8.21p2-3ubuntu1.2","binary_name":"sudo"},{"binary_version":"1.8.21p2-3ubuntu1.2","binary_name":"sudo-ldap"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2019-18634","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}]}],"ecosystem":"Ubuntu:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4263-1.json"}}],"schema_version":"1.7.3"}