{"id":"ASB-A-212694559","details":"In l2cble_process_sig_cmd of l2c_ble.cc, there is a possible out of bounds read due to a missing bounds check. This could lead to remote information disclosure through Bluetooth with no additional execution privileges needed. User interaction is not needed for exploitation.","aliases":["A-212694559","CVE-2021-39805"],"modified":"2026-09-18T15:47:37.392928379Z","published":"2022-04-01T00:00:00Z","references":[{"type":"ADVISORY","url":"https://source.android.com/security/bulletin/2022-04-01"},{"type":"FIX","url":"https://android.googlesource.com/platform/system/bt/+/1e38a411e70f7f9fa6b78e4e75479e818f20e401"}],"affected":[{"package":{"name":"platform/system/bt","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"12:0"},{"fixed":"12:2022-04-01"}]}],"versions":["12"],"ecosystem_specific":{"types":["ID"],"vanir_signatures":[{"signature_version":"v1","source":"https://android.googlesource.com/platform/system/bt/+/7f619cedc140b90faa290dbbc14d9c272fa4c6e6","target":{"function":"l2cble_process_sig_cmd","file":"stack/l2cap/l2c_ble.cc"},"deprecated":false,"digest":{"function_hash":"254438474118475900626320567562364881114","length":15123},"id":"ASB-A-212694559-c4ffd8eb","signature_type":"Function"},{"id":"ASB-A-212694559-d0e9b347","signature_type":"Line","signature_version":"v1","source":"https://android.googlesource.com/platform/system/bt/+/7f619cedc140b90faa290dbbc14d9c272fa4c6e6","target":{"file":"stack/l2cap/l2c_ble.cc"},"deprecated":false,"digest":{"line_hashes":["135933616032082551739412714357276854940","79264447992587318913622116538105510541","250541454454778247075908588327572958977","225910774339375285031964598489356098800"],"threshold":0.9}}],"fixes":["https://android.googlesource.com/platform/system/bt/+/7f619cedc140b90faa290dbbc14d9c272fa4c6e6"],"severity":"High","spl":"2022-04-01"},"database_specific":{"source":"https://storage.googleapis.com/android-osv/ASB-A-212694559.json"}},{"package":{"name":"platform/system/bt","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"12L:0"},{"fixed":"12L:2022-04-01"}]}],"versions":["12L"],"ecosystem_specific":{"fixes":["https://android.googlesource.com/platform/system/bt/+/4775e3d04e62bf22fd2552cd271599f65fc06a3e"],"severity":"High","spl":"2022-04-01","types":["ID"],"vanir_signatures":[{"deprecated":false,"digest":{"function_hash":"254438474118475900626320567562364881114","length":15123},"id":"ASB-A-212694559-14513f2b","signature_type":"Function","signature_version":"v1","source":"https://android.googlesource.com/platform/system/bt/+/4775e3d04e62bf22fd2552cd271599f65fc06a3e","target":{"function":"l2cble_process_sig_cmd","file":"stack/l2cap/l2c_ble.cc"}},{"deprecated":false,"digest":{"line_hashes":["135933616032082551739412714357276854940","79264447992587318913622116538105510541","250541454454778247075908588327572958977","225910774339375285031964598489356098800"],"threshold":0.9},"id":"ASB-A-212694559-5c151a06","signature_type":"Line","signature_version":"v1","source":"https://android.googlesource.com/platform/system/bt/+/4775e3d04e62bf22fd2552cd271599f65fc06a3e","target":{"file":"stack/l2cap/l2c_ble.cc"}}]},"database_specific":{"source":"https://storage.googleapis.com/android-osv/ASB-A-212694559.json"}}],"schema_version":"1.9.0"}