{"id":"ASB-A-242544249","details":"In inflate of inflate.c, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.","aliases":["A-242544249","CVE-2023-21100"],"modified":"2026-09-18T15:47:37.392928379Z","published":"2023-04-01T00:00:00Z","references":[{"type":"ADVISORY","url":"https://source.android.com/security/bulletin/2023-04-01"},{"type":"FIX","url":"https://android.googlesource.com/platform/external/angle/+/6a020bf505f4eb6d860eccf72ae6d6b4c4b720e9"}],"affected":[{"package":{"name":"platform/external/angle","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13-next:0"},{"fixed":"13-next:2023-04-01"}]}],"versions":["13-next"],"ecosystem_specific":{"spl":"2023-04-01","types":["EoP"],"vanir_signatures":[{"target":{"file":"third_party/zlib/contrib/optimizations/inflate.c"},"deprecated":false,"digest":{"threshold":0.9,"line_hashes":["158253382744967794372166426227829451328","208646129568712116042670616434092925745","267897132422978847766130599021982102399","89021460256006972424927287623588351745","257784892650917064621950304120855216852"]},"id":"ASB-A-242544249-07f3683e","signature_type":"Line","signature_version":"v1","source":"https://android.googlesource.com/platform/external/angle/+/be373a02bd86e8eebae0b18e0d6a61d145ba8a2e"},{"digest":{"line_hashes":["158253382744967794372166426227829451328","208646129568712116042670616434092925745","267897132422978847766130599021982102399","89021460256006972424927287623588351745","257784892650917064621950304120855216852"],"threshold":0.9},"id":"ASB-A-242544249-af970915","signature_type":"Line","signature_version":"v1","source":"https://android.googlesource.com/platform/external/angle/+/be373a02bd86e8eebae0b18e0d6a61d145ba8a2e","target":{"file":"third_party/zlib/inflate.c"},"deprecated":false}],"fixes":["https://android.googlesource.com/platform/external/angle/+/be373a02bd86e8eebae0b18e0d6a61d145ba8a2e"],"severity":"High"},"database_specific":{"source":"https://storage.googleapis.com/android-osv/ASB-A-242544249.json"}},{"package":{"name":"platform/external/angle","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"12:0"},{"fixed":"12:2023-04-01"}]}],"versions":["12"],"ecosystem_specific":{"types":["EoP"],"vanir_signatures":[{"signature_type":"Line","signature_version":"v1","source":"https://android.googlesource.com/platform/external/angle/+/b8b2479b4456ff06b3d5496818b836af1dc88818","target":{"file":"third_party/zlib/contrib/optimizations/inflate.c"},"deprecated":false,"digest":{"line_hashes":["158253382744967794372166426227829451328","208646129568712116042670616434092925745","267897132422978847766130599021982102399","89021460256006972424927287623588351745","257784892650917064621950304120855216852"],"threshold":0.9},"id":"ASB-A-242544249-56b0216e"},{"digest":{"line_hashes":["158253382744967794372166426227829451328","208646129568712116042670616434092925745","267897132422978847766130599021982102399","89021460256006972424927287623588351745","257784892650917064621950304120855216852"],"threshold":0.9},"id":"ASB-A-242544249-a553569c","signature_type":"Line","signature_version":"v1","source":"https://android.googlesource.com/platform/external/angle/+/b8b2479b4456ff06b3d5496818b836af1dc88818","target":{"file":"third_party/zlib/inflate.c"},"deprecated":false}],"fixes":["https://android.googlesource.com/platform/external/angle/+/b8b2479b4456ff06b3d5496818b836af1dc88818"],"severity":"High","spl":"2023-04-01"},"database_specific":{"source":"https://storage.googleapis.com/android-osv/ASB-A-242544249.json"}},{"package":{"name":"platform/external/angle","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"12L:0"},{"fixed":"12L:2023-04-01"}]}],"versions":["12L"],"ecosystem_specific":{"spl":"2023-04-01","types":["EoP"],"vanir_signatures":[{"digest":{"line_hashes":["158253382744967794372166426227829451328","208646129568712116042670616434092925745","267897132422978847766130599021982102399","89021460256006972424927287623588351745","257784892650917064621950304120855216852"],"threshold":0.9},"id":"ASB-A-242544249-2e79a141","signature_type":"Line","signature_version":"v1","source":"https://android.googlesource.com/platform/external/angle/+/4d608de988d2105ea265db2fe3c93d599adf360c","target":{"file":"third_party/zlib/inflate.c"},"deprecated":false},{"deprecated":false,"digest":{"line_hashes":["158253382744967794372166426227829451328","208646129568712116042670616434092925745","267897132422978847766130599021982102399","89021460256006972424927287623588351745","257784892650917064621950304120855216852"],"threshold":0.9},"id":"ASB-A-242544249-a10b0012","signature_type":"Line","signature_version":"v1","source":"https://android.googlesource.com/platform/external/angle/+/4d608de988d2105ea265db2fe3c93d599adf360c","target":{"file":"third_party/zlib/contrib/optimizations/inflate.c"}}],"fixes":["https://android.googlesource.com/platform/external/angle/+/4d608de988d2105ea265db2fe3c93d599adf360c"],"severity":"High"},"database_specific":{"source":"https://storage.googleapis.com/android-osv/ASB-A-242544249.json"}},{"package":{"name":"platform/external/angle","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13:0"},{"fixed":"13:2023-04-01"}]}],"versions":["13"],"ecosystem_specific":{"spl":"2023-04-01","types":["EoP"],"vanir_signatures":[{"deprecated":false,"digest":{"threshold":0.9,"line_hashes":["158253382744967794372166426227829451328","208646129568712116042670616434092925745","267897132422978847766130599021982102399","89021460256006972424927287623588351745","257784892650917064621950304120855216852"]},"id":"ASB-A-242544249-8a0850fd","signature_type":"Line","signature_version":"v1","source":"https://android.googlesource.com/platform/external/angle/+/d738ba585e361ec65a29716931f4cff3eab2b81a","target":{"file":"third_party/zlib/inflate.c"}},{"target":{"file":"third_party/zlib/contrib/optimizations/inflate.c"},"deprecated":false,"digest":{"line_hashes":["158253382744967794372166426227829451328","208646129568712116042670616434092925745","267897132422978847766130599021982102399","89021460256006972424927287623588351745","257784892650917064621950304120855216852"],"threshold":0.9},"id":"ASB-A-242544249-d8c6d404","signature_type":"Line","signature_version":"v1","source":"https://android.googlesource.com/platform/external/angle/+/d738ba585e361ec65a29716931f4cff3eab2b81a"}],"fixes":["https://android.googlesource.com/platform/external/angle/+/d738ba585e361ec65a29716931f4cff3eab2b81a"],"severity":"High"},"database_specific":{"source":"https://storage.googleapis.com/android-osv/ASB-A-242544249.json"}}],"schema_version":"1.9.0"}