{"id":"USN-5252-1","summary":"policykit-1 vulnerability","details":"It was discovered that the PolicyKit pkexec tool incorrectly handled\ncommand-line arguments. A local attacker could use this issue to escalate\nprivileges to an administrator.\n","modified":"2026-04-22T10:20:19.846604Z","published":"2022-01-25T17:58:39Z","related":["UBUNTU-CVE-2021-4034"],"upstream":["CVE-2021-4034","UBUNTU-CVE-2021-4034"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5252-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-4034"}],"affected":[{"package":{"name":"policykit-1","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/policykit-1@0.105-20ubuntu0.18.04.6?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.105-20ubuntu0.18.04.6"}]}],"versions":["0.105-18","0.105-20","0.105-20ubuntu0.18.04.1","0.105-20ubuntu0.18.04.4","0.105-20ubuntu0.18.04.5"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"gir1.2-polkit-1.0","binary_version":"0.105-20ubuntu0.18.04.6"},{"binary_name":"libpolkit-agent-1-0","binary_version":"0.105-20ubuntu0.18.04.6"},{"binary_name":"libpolkit-backend-1-0","binary_version":"0.105-20ubuntu0.18.04.6"},{"binary_name":"libpolkit-gobject-1-0","binary_version":"0.105-20ubuntu0.18.04.6"},{"binary_name":"policykit-1","binary_version":"0.105-20ubuntu0.18.04.6"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2021-4034","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5252-1.json"}},{"package":{"name":"policykit-1","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/policykit-1@0.105-26ubuntu1.2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.105-26ubuntu1.2"}]}],"versions":["0.105-26ubuntu1","0.105-26ubuntu1.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"gir1.2-polkit-1.0","binary_version":"0.105-26ubuntu1.2"},{"binary_name":"libpolkit-agent-1-0","binary_version":"0.105-26ubuntu1.2"},{"binary_name":"libpolkit-gobject-1-0","binary_version":"0.105-26ubuntu1.2"},{"binary_name":"policykit-1","binary_version":"0.105-26ubuntu1.2"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2021-4034","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:20.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5252-1.json"}}],"schema_version":"1.7.5"}