{"id":"PUB-A-233338564","details":"In UnwindingWorker of unwinding.cc, there is a possible out of bounds write due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.","aliases":["A-233338564","CVE-2023-21018"],"modified":"2026-09-18T15:47:37.392928379Z","published":"2023-03-01T00:00:00Z","references":[{"type":"ADVISORY","url":"https://source.android.com/security/bulletin/2023-03-01"},{"type":"FIX","url":"https://android.googlesource.com/platform/external/perfetto/+/7076286ad6373cdc79b989652929236f8e9841ef"}],"affected":[{"package":{"name":"platform/external/perfetto","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13:0"},{"fixed":"13:2023-03-01"}]}],"versions":["13"],"ecosystem_specific":{"spl":"2023-03-01","types":["EoP"],"vanir_signatures":[{"source":"https://android.googlesource.com/platform/external/perfetto/+/7076286ad6373cdc79b989652929236f8e9841ef","target":{"file":"src/profiling/memory/unwinding.h"},"deprecated":false,"digest":{"line_hashes":["88545782820470722185258939600760124082","141185074383073179309257259460373829530","151911977581720218950056226347624371621","291385474918072065364481440096143627881","4319774242246258842648944880925668600","109791571089080802379767279196878690069"],"threshold":0.9},"id":"PUB-A-233338564-560fbc0a","match_only_versions":["13"],"signature_type":"Line","signature_version":"v1"},{"match_only_versions":["13"],"signature_type":"Line","signature_version":"v1","source":"https://android.googlesource.com/platform/external/perfetto/+/7076286ad6373cdc79b989652929236f8e9841ef","target":{"file":"src/profiling/memory/unwinding.cc"},"deprecated":false,"digest":{"line_hashes":["278109555857641491656739200814794431822","180342086707531848116863261382111200309","320889837013034100650056372438105173383"],"threshold":0.9},"id":"PUB-A-233338564-7e2cd29c"}],"fixes":["https://android.googlesource.com/platform/external/perfetto/+/7076286ad6373cdc79b989652929236f8e9841ef"],"severity":"Moderate"},"database_specific":{"source":"https://storage.googleapis.com/android-osv/PUB-A-233338564.json"}}],"schema_version":"1.9.0"}