{"id":"PUB-A-197328178","details":"In isFileUri of UriUtil.java, there is a possible way to bypass ignoring file://URI attachment  due to improper handling of case sensitivity. This could lead to local information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.","aliases":["A-197328178","CVE-2021-0973"],"modified":"2026-06-03T15:06:08.149995907Z","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/packages/apps/Messaging/+/58ee29c68e1914af680ef0658bdb7a94e4e5e3a3"}],"affected":[{"package":{"name":"platform/packages/apps/Messaging","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"12:0"},{"fixed":"12:2021-12-01"}]}],"versions":["12"],"ecosystem_specific":{"severity":"Moderate","spl":"2021-12-01","types":["ID"],"vanir_signatures":[{"id":"PUB-A-197328178-42d4e8a5","target":{"file":"src/com/android/messaging/util/UriUtil.java","function":"isFileUri"},"signature_type":"Function","deprecated":false,"source":"https://android.googlesource.com/platform/packages/apps/Messaging/+/58ee29c68e1914af680ef0658bdb7a94e4e5e3a3","digest":{"length":144,"function_hash":"215906812200237166193055551140352639749"},"signature_version":"v1"},{"source":"https://android.googlesource.com/platform/packages/apps/Messaging/+/58ee29c68e1914af680ef0658bdb7a94e4e5e3a3","target":{"file":"src/com/android/messaging/util/UriUtil.java"},"signature_type":"Line","id":"PUB-A-197328178-6c72e01b","deprecated":false,"digest":{"threshold":0.9,"line_hashes":["103653353624183390521670018533190571615","133813972390159506732618602924434228330","249063719175213754932534929031738680016","331358903205481392733917350499276060077","139158967101698425159438100258288722224"]},"signature_version":"v1"}],"fixes":["https://android.googlesource.com/platform/packages/apps/Messaging/+/58ee29c68e1914af680ef0658bdb7a94e4e5e3a3"]},"database_specific":{"source":"https://storage.googleapis.com/android-osv/PUB-A-197328178.json"}}],"schema_version":"1.7.5"}