{"id":"ASB-A-168692734","details":"In addEscrowToken of LockSettingsService.java, there is a possible loss of the synthetic password due to logic error. This could lead to local denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.","aliases":["A-168692734","CVE-2020-0469"],"modified":"2026-09-18T15:47:37.392928379Z","published":"2020-12-01T00:00:00Z","references":[{"type":"ADVISORY","url":"https://source.android.com/security/bulletin/2020-12-01"},{"type":"FIX","url":"https://android.googlesource.com/platform/frameworks/base/+/1a6f1fb402b96df561b9672aef1e4fce8a13de80"}],"affected":[{"package":{"name":"platform/frameworks/base","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"11:0"},{"fixed":"11:2020-12-01"}]}],"versions":["11"],"ecosystem_specific":{"fixes":["https://android.googlesource.com/platform/frameworks/base/+/1a6f1fb402b96df561b9672aef1e4fce8a13de80"],"severity":"High","spl":"2020-12-01","types":["DoS"],"vanir_signatures":[{"signature_type":"Function","signature_version":"v1","source":"https://android.googlesource.com/platform/frameworks/base/+/1a6f1fb402b96df561b9672aef1e4fce8a13de80","target":{"file":"services/core/java/com/android/server/locksettings/LockSettingsService.java","function":"initializeSyntheticPasswordLocked"},"deprecated":false,"digest":{"length":855,"function_hash":"331169300333107926343020140939072705206"},"id":"ASB-A-168692734-b39cebbf"},{"deprecated":false,"digest":{"function_hash":"96394997500601448676737221830763040134","length":48},"id":"ASB-A-168692734-e1250ca6","signature_type":"Function","signature_version":"v1","source":"https://android.googlesource.com/platform/frameworks/base/+/1a6f1fb402b96df561b9672aef1e4fce8a13de80","target":{"file":"services/core/java/com/android/server/locksettings/LockSettingsService.java","function":"shouldMigrateToSyntheticPasswordLocked"}},{"source":"https://android.googlesource.com/platform/frameworks/base/+/1a6f1fb402b96df561b9672aef1e4fce8a13de80","target":{"file":"services/core/java/com/android/server/locksettings/LockSettingsService.java"},"deprecated":false,"digest":{"line_hashes":["251550690581497423073937327260480606352","170125846614404205879020400085042593894","138144614483412455258960286212840580277","156587801624632000706238271320574735130","17748398500746310132563250961750529776","338776862070514492001845004348732116951","271723429315829656446388442982048252443","259288527986033092891475662013340766746","102766727341725255193336268302347785160","318955282145310672252016941305067844070","327608454589390501832279443579911710309","248850631743975608060784979100489083508"],"threshold":0.9},"id":"ASB-A-168692734-fbc3e40c","signature_type":"Line","signature_version":"v1"}]},"database_specific":{"source":"https://storage.googleapis.com/android-osv/ASB-A-168692734.json"}}],"schema_version":"1.9.0"}