{"id":"UBUNTU-CVE-2021-3560","details":"It was found that polkit could be tricked into bypassing the credential checks for D-Bus requests, elevating the privileges of the requestor to the root user. This flaw could be used by an unprivileged local attacker to, for example, create a new local administrator. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.","modified":"2026-04-22T14:48:53.331371Z","published":"2021-06-03T07:00:00Z","related":["USN-4980-1"],"upstream":["CVE-2021-3560"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-3560"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4980-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-3560"},{"type":"REPORT","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog"}],"affected":[{"package":{"name":"policykit-1","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/policykit-1@0.105-26ubuntu1.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.105-26ubuntu1.1"}]}],"versions":["0.105-26ubuntu1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"gir1.2-polkit-1.0","binary_version":"0.105-26ubuntu1.1"},{"binary_name":"libpolkit-agent-1-0","binary_version":"0.105-26ubuntu1.1"},{"binary_name":"libpolkit-gobject-1-0","binary_version":"0.105-26ubuntu1.1"},{"binary_name":"policykit-1","binary_version":"0.105-26ubuntu1.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3560.json"}},{"package":{"name":"policykit-1","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/policykit-1@0.105-31?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.105-31"}]}],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"gir1.2-polkit-1.0","binary_version":"0.105-31"},{"binary_name":"libpolkit-agent-1-0","binary_version":"0.105-31"},{"binary_name":"libpolkit-gobject-1-0","binary_version":"0.105-31"},{"binary_name":"policykit-1","binary_version":"0.105-31"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3560.json"}}],"schema_version":"1.7.5","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":"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":"high"}]}