{"id":"USN-4480-1","summary":"keystone vulnerabilities","details":"It was discovered that OpenStack Keystone incorrectly handled EC2\ncredentials. An authenticated attacker with a limited scope could possibly\ncreate EC2 credentials with escalated permissions. (CVE-2020-12689,\nCVE-2020-12691)\n\nIt was discovered that OpenStack Keystone incorrectly handled the list of\nroles provided with OAuth1 access tokens. An authenticated user could\npossibly end up with more role assignments than intended. (CVE-2020-12690)\n\nIt was discovered that OpenStack Keystone incorrectly handled EC2 signature\nTTL checks. A remote attacker could possibly use this issue to reuse\nAuthorization headers. (CVE-2020-12692)\n","modified":"2026-02-10T04:41:54Z","published":"2020-09-01T11:10:10Z","related":["UBUNTU-CVE-2020-12689","UBUNTU-CVE-2020-12690","UBUNTU-CVE-2020-12691","UBUNTU-CVE-2020-12692"],"upstream":["CVE-2020-12689","CVE-2020-12690","CVE-2020-12691","CVE-2020-12692","UBUNTU-CVE-2020-12689","UBUNTU-CVE-2020-12690","UBUNTU-CVE-2020-12691","UBUNTU-CVE-2020-12692"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4480-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-12689"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-12690"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-12691"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-12692"}],"affected":[{"package":{"name":"keystone","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/keystone@2:13.0.4-0ubuntu1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:13.0.4-0ubuntu1"}]}],"versions":["2:12.0.0-0ubuntu1","2:13.0.0~b1-0ubuntu1","2:13.0.0~b2-0ubuntu1","2:13.0.0~b3-0ubuntu1","2:13.0.0~rc1-0ubuntu1","2:13.0.0~rc2-0ubuntu1","2:13.0.0-0ubuntu1","2:13.0.1-0ubuntu1","2:13.0.2-0ubuntu1","2:13.0.2-0ubuntu3"],"ecosystem_specific":{"binaries":[{"binary_name":"keystone","binary_version":"2:13.0.4-0ubuntu1"},{"binary_name":"python-keystone","binary_version":"2:13.0.4-0ubuntu1"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2020-12689"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2020-12690"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2020-12691"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2020-12692"}],"ecosystem":"Ubuntu:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4480-1.json"}}],"schema_version":"1.7.3"}