{"id":"PUB-A-181588752", "published":"2021-12-01T00:00:00Z", "modified":"2026-04-30T15:48:46.890647439Z", "aliases":["CVE-2021-0991", "A-181588752"], "details":"In OnMetadataChangedListener of AdvancedBluetoothDetailsHeaderController.java, there is a possible  leak of Bluetooth MAC addresses due to log information disclosure. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.", "affected":[{"package":{"name":"platform/packages/apps/Settings", "ecosystem":"Android"}, "ranges":[{"type":"ECOSYSTEM", "events":[{"introduced":"12:0"}, {"fixed":"12:2021-12-01"}]}], "versions":["12"], "ecosystem_specific":{"fixes":["https://android.googlesource.com/platform/packages/apps/Settings/+/13f41075d4f04a374790d0512b0dbb2af2a92ea0"], "severity":"Moderate", "spl":"2021-12-01", "types":["ID"], "vanir_signatures":[{"deprecated":false, "digest":{"function_hash":"245129840886675525281875247632193388794", "length":234}, "id":"PUB-A-181588752-07bee88a", "signature_type":"Function", "signature_version":"v1", "source":"https://android.googlesource.com/platform/packages/apps/Settings/+/13f41075d4f04a374790d0512b0dbb2af2a92ea0", "target":{"file":"src/com/android/settings/bluetooth/AdvancedBluetoothDetailsHeaderController.java", "function":"onMetadataChanged"}}, {"deprecated":false, "digest":{"line_hashes":["255516321675221604299680322310391253881", "12327743438375742258779007198816930852", "12726885201821212276889396785101473400", "102582020555965550672013237599700855254", "162450658683837302038969388447910338712"], "threshold":0.9}, "id":"PUB-A-181588752-386c4640", "signature_type":"Line", "signature_version":"v1", "source":"https://android.googlesource.com/platform/packages/apps/Settings/+/13f41075d4f04a374790d0512b0dbb2af2a92ea0", "target":{"file":"src/com/android/settings/bluetooth/AdvancedBluetoothDetailsHeaderController.java"}}]}}], "references":[{"type":"ADVISORY", "url":"https://source.android.com/security/bulletin/2021-12-01"}, {"type":"FIX", "url":"https://android.googlesource.com/platform/packages/apps/Settings/+/13f41075d4f04a374790d0512b0dbb2af2a92ea0"}]}