{"id":"PUB-A-180420059","details":"In btif_in_hf_client_generic_evt of btif_hf_client.cc, there is a possible Bluetooth service crash due to a missing null check. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.","aliases":["A-180420059","CVE-2021-1022"],"modified":"2026-05-29T15:55:33.750044621Z","published":"2021-12-01T00:00:00Z","references":[{"type":"ADVISORY","url":"https://source.android.com/security/bulletin/2021-12-01"},{"type":"FIX","url":"https://android.googlesource.com/platform/system/bt/+/1924e011a8770edcc8430702114ed06b6c11c5ab"}],"affected":[{"package":{"name":"platform/system/bt","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"12:0"},{"fixed":"12:2021-12-01"}]}],"versions":["12"],"ecosystem_specific":{"vanir_signatures":[{"signature_version":"v1","deprecated":false,"target":{"function":"btif_in_hf_client_generic_evt","file":"btif/src/btif_hf_client.cc"},"source":"https://android.googlesource.com/platform/system/bt/+/1924e011a8770edcc8430702114ed06b6c11c5ab","digest":{"function_hash":"100983578932973266273128197855008333736","length":592},"signature_type":"Function","id":"PUB-A-180420059-06226d93"},{"signature_version":"v1","deprecated":false,"target":{"file":"btif/src/btif_hf_client.cc"},"source":"https://android.googlesource.com/platform/system/bt/+/1924e011a8770edcc8430702114ed06b6c11c5ab","digest":{"threshold":0.9,"line_hashes":["186000689719512910692076778162002460461","295237246237395290570544931291249859846","136626929413539361612694698853879259238","61864395386903211023641912611902541733"]},"signature_type":"Line","id":"PUB-A-180420059-2892994a"}],"severity":"Moderate","types":["DoS"],"fixes":["https://android.googlesource.com/platform/system/bt/+/1924e011a8770edcc8430702114ed06b6c11c5ab"],"spl":"2021-12-01"},"database_specific":{"source":"https://storage.googleapis.com/android-osv/PUB-A-180420059.json"}}],"schema_version":"1.7.5"}