{"id":"UBUNTU-CVE-2020-0556","details":"Improper access control in subsystem for BlueZ before version 5.54 may allow an unauthenticated user to potentially enable escalation of privilege and denial of service via adjacent access","modified":"2026-04-22T12:25:22.402749Z","published":"2020-03-12T21:15:00Z","related":["USN-4311-1"],"upstream":["CVE-2020-0556"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-0556"},{"type":"REPORT","url":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00352.html"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2020/03/12/4"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4311-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-0556"}],"affected":[{"package":{"name":"bluez","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/bluez@5.37-0ubuntu5.3?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.37-0ubuntu5.3"}]}],"versions":["5.35-0ubuntu2","5.36-0ubuntu1","5.37-0ubuntu5","5.37-0ubuntu5.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"bluetooth","binary_version":"5.37-0ubuntu5.3"},{"binary_version":"5.37-0ubuntu5.3","binary_name":"bluez"},{"binary_name":"bluez-cups","binary_version":"5.37-0ubuntu5.3"},{"binary_name":"bluez-hcidump","binary_version":"5.37-0ubuntu5.3"},{"binary_name":"bluez-obexd","binary_version":"5.37-0ubuntu5.3"},{"binary_version":"5.37-0ubuntu5.3","binary_name":"bluez-tests"},{"binary_name":"libbluetooth3","binary_version":"5.37-0ubuntu5.3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-0556.json"}},{"package":{"name":"bluez","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/bluez@5.48-0ubuntu3.4?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.48-0ubuntu3.4"}]}],"versions":["5.46-0ubuntu3","5.46-0ubuntu4","5.48-0ubuntu3","5.48-0ubuntu3.1","5.48-0ubuntu3.2","5.48-0ubuntu3.3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"bluetooth","binary_version":"5.48-0ubuntu3.4"},{"binary_name":"bluez","binary_version":"5.48-0ubuntu3.4"},{"binary_name":"bluez-cups","binary_version":"5.48-0ubuntu3.4"},{"binary_name":"bluez-hcidump","binary_version":"5.48-0ubuntu3.4"},{"binary_name":"bluez-obexd","binary_version":"5.48-0ubuntu3.4"},{"binary_version":"5.48-0ubuntu3.4","binary_name":"bluez-tests"},{"binary_name":"libbluetooth3","binary_version":"5.48-0ubuntu3.4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-0556.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L"},{"type":"Ubuntu","score":"medium"}]}