{"id":"USN-4263-2","summary":"sudo vulnerability","details":"USN-4263-1 fixed a vulnerability in Sudo. This update provides\nthe corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.\n\nOriginal advisory details:\n\n Joe Vennix discovered that Sudo incorrectly handled memory operations when\n the pwfeedback option is enabled. A local attacker could possibly use this\n issue to obtain unintended access to the administrator account.\n","modified":"2026-02-10T04:41:46Z","published":"2020-02-05T13:10:13Z","related":["UBUNTU-CVE-2019-18634"],"upstream":["CVE-2019-18634","UBUNTU-CVE-2019-18634"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4263-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-18634"}],"affected":[{"package":{"name":"sudo","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/sudo@1.8.9p5-1ubuntu1.5+esm3?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.9p5-1ubuntu1.5+esm3"}]}],"versions":["1.8.6p3-0ubuntu3","1.8.8-2ubuntu1","1.8.8-2ubuntu2","1.8.9p4-1ubuntu1","1.8.9p4-1ubuntu2","1.8.9p5-1ubuntu1","1.8.9p5-1ubuntu1.1","1.8.9p5-1ubuntu1.2","1.8.9p5-1ubuntu1.3","1.8.9p5-1ubuntu1.4","1.8.9p5-1ubuntu1.5+esm1","1.8.9p5-1ubuntu1.5+esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.8.9p5-1ubuntu1.5+esm3","binary_name":"sudo"},{"binary_version":"1.8.9p5-1ubuntu1.5+esm3","binary_name":"sudo-ldap"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"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:Pro:14.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4263-2.json"}}],"schema_version":"1.7.3"}