{"id":"ASB-A-169327567","details":"In reassemble_and_dispatch of packet_fragmenter.cc, there is a possible way to inject packets into an encrypted Bluetooth connection due to improper input validation. This could lead to remote escalation of privilege between two Bluetooth devices by a proximal attacker, with no additional execution privileges needed. User interaction is not needed for exploitation.","aliases":["A-169327567","CVE-2020-0471"],"modified":"2026-09-18T15:47:37.392928379Z","published":"2021-01-01T00:00:00Z","references":[{"type":"ADVISORY","url":"https://source.android.com/security/bulletin/2021-01-01"},{"type":"FIX","url":"https://android.googlesource.com/platform/system/bt/+/ca6b0a211eb39ba85eed60ea740c85d1122fc6bc"}],"affected":[{"package":{"name":"platform/system/bt","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.0:0"},{"fixed":"8.0:2021-01-01"}]}],"versions":["8.0"],"ecosystem_specific":{"spl":"2021-01-01","types":["EoP"],"vanir_signatures":[{"source":"https://android.googlesource.com/platform/system/bt/+/ca6b0a211eb39ba85eed60ea740c85d1122fc6bc","target":{"file":"hci/src/packet_fragmenter.cc"},"deprecated":false,"digest":{"line_hashes":["46995938498514947568550933909503605620","310702208346589729136462779503648980478","233652924819930636817896174700997761807","260856446316210445344178118362997482101","198486459102143530657674494994980465420","170089115573628385775337371793324305594","130290991835669595081844488428550574625","255788660720925322410261161820993299165"],"threshold":0.9},"id":"ASB-A-169327567-6021592d","signature_type":"Line","signature_version":"v1"},{"signature_type":"Function","signature_version":"v1","source":"https://android.googlesource.com/platform/system/bt/+/ca6b0a211eb39ba85eed60ea740c85d1122fc6bc","target":{"file":"hci/src/packet_fragmenter.cc","function":"reassemble_and_dispatch"},"deprecated":false,"digest":{"function_hash":"207888745616769230679662588568908247673","length":3044},"id":"ASB-A-169327567-c3bcbd7c"}],"fixes":["https://android.googlesource.com/platform/system/bt/+/ca6b0a211eb39ba85eed60ea740c85d1122fc6bc"],"severity":"High"},"database_specific":{"source":"https://storage.googleapis.com/android-osv/ASB-A-169327567.json"}},{"package":{"name":"platform/system/bt","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.1:0"},{"fixed":"8.1:2021-01-01"}]}],"versions":["8.1"],"ecosystem_specific":{"spl":"2021-01-01","types":["EoP"],"vanir_signatures":[{"target":{"file":"hci/src/packet_fragmenter.cc"},"deprecated":false,"digest":{"threshold":0.9,"line_hashes":["46995938498514947568550933909503605620","310702208346589729136462779503648980478","233652924819930636817896174700997761807","260856446316210445344178118362997482101","198486459102143530657674494994980465420","170089115573628385775337371793324305594","130290991835669595081844488428550574625","255788660720925322410261161820993299165"]},"id":"ASB-A-169327567-28082b0e","signature_type":"Line","signature_version":"v1","source":"https://android.googlesource.com/platform/system/bt/+/ca6b0a211eb39ba85eed60ea740c85d1122fc6bc"},{"digest":{"function_hash":"207888745616769230679662588568908247673","length":3044},"id":"ASB-A-169327567-cc6c7f4f","signature_type":"Function","signature_version":"v1","source":"https://android.googlesource.com/platform/system/bt/+/ca6b0a211eb39ba85eed60ea740c85d1122fc6bc","target":{"file":"hci/src/packet_fragmenter.cc","function":"reassemble_and_dispatch"},"deprecated":false}],"fixes":["https://android.googlesource.com/platform/system/bt/+/ca6b0a211eb39ba85eed60ea740c85d1122fc6bc"],"severity":"High"},"database_specific":{"source":"https://storage.googleapis.com/android-osv/ASB-A-169327567.json"}},{"package":{"name":"platform/system/bt","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9:0"},{"fixed":"9:2021-01-01"}]}],"versions":["9"],"ecosystem_specific":{"severity":"High","spl":"2021-01-01","types":["EoP"],"vanir_signatures":[{"source":"https://android.googlesource.com/platform/system/bt/+/ca6b0a211eb39ba85eed60ea740c85d1122fc6bc","target":{"file":"hci/src/packet_fragmenter.cc","function":"reassemble_and_dispatch"},"deprecated":false,"digest":{"function_hash":"207888745616769230679662588568908247673","length":3044},"id":"ASB-A-169327567-38283a57","signature_type":"Function","signature_version":"v1"},{"deprecated":false,"digest":{"line_hashes":["46995938498514947568550933909503605620","310702208346589729136462779503648980478","233652924819930636817896174700997761807","260856446316210445344178118362997482101","198486459102143530657674494994980465420","170089115573628385775337371793324305594","130290991835669595081844488428550574625","255788660720925322410261161820993299165"],"threshold":0.9},"id":"ASB-A-169327567-eeebc3c0","signature_type":"Line","signature_version":"v1","source":"https://android.googlesource.com/platform/system/bt/+/ca6b0a211eb39ba85eed60ea740c85d1122fc6bc","target":{"file":"hci/src/packet_fragmenter.cc"}}],"fixes":["https://android.googlesource.com/platform/system/bt/+/ca6b0a211eb39ba85eed60ea740c85d1122fc6bc"]},"database_specific":{"source":"https://storage.googleapis.com/android-osv/ASB-A-169327567.json"}},{"package":{"name":"platform/system/bt","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"10:0"},{"fixed":"10:2021-01-01"}]}],"version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