{"id":"PUB-A-190435883","details":"In PVInitVideoEncoder of mp4enc_api.cpp, there is a possible out of bounds read due to a heap buffer overflow. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.","aliases":["A-190435883","CVE-2021-1001"],"modified":"2026-09-18T15:47:37.392928379Z","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/frameworks/av/+/c52ab47449d3c6bf2af3668c2c753d0a33404a9a"}],"affected":[{"package":{"name":"platform/frameworks/av","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"12:0"},{"fixed":"12:2021-12-01"}]}],"versions":["12"],"ecosystem_specific":{"fixes":["https://android.googlesource.com/platform/frameworks/av/+/c52ab47449d3c6bf2af3668c2c753d0a33404a9a"],"severity":"Moderate","spl":"2021-12-01","types":["ID"],"vanir_signatures":[{"signature_type":"Function","signature_version":"v1","source":"https://android.googlesource.com/platform/frameworks/av/+/c52ab47449d3c6bf2af3668c2c753d0a33404a9a","target":{"file":"media/codecs/m4v_h263/enc/src/mp4enc_api.cpp","function":"PVInitVideoEncoder"},"deprecated":false,"digest":{"function_hash":"331766920222833858923471291138145887051","length":20344},"id":"PUB-A-190435883-6d24091e"},{"id":"PUB-A-190435883-d41a9e38","signature_type":"Line","signature_version":"v1","source":"https://android.googlesource.com/platform/frameworks/av/+/c52ab47449d3c6bf2af3668c2c753d0a33404a9a","target":{"file":"media/codecs/m4v_h263/enc/src/mp4enc_api.cpp"},"deprecated":false,"digest":{"line_hashes":["206437095254952264279870610859463231236","335763517536493788842454289933025066803","315427360418934668995122938100707492940","277662384132488287615611224431094309394","161466992054306866615721603485132579586","18605767560981244841544534635281281311","288045843137782979265232455174873634161","213438922595083060206583817694471793034","21647049488474645469943973489962736788","278275374606181650662406174154067542970","244548571901860716783198757529286500556","177514349601426941332198306653110568412","322071612031000966792118222920463745902","266949744181163504133091299737103916053"],"threshold":0.9}}]},"database_specific":{"source":"https://storage.googleapis.com/android-osv/PUB-A-190435883.json"}}],"schema_version":"1.9.0"}