{"id":"CVE-2023-21020","details":"In registerSignalHandlers of main.c, there is a possible local arbitrary code execution 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.Product: AndroidVersions: Android-13Android ID: A-256591441","aliases":["A-256591441","PUB-A-256591441"],"modified":"2026-03-14T11:58:01.690499Z","published":"2023-03-24T20:15:13.287Z","references":[{"type":"FIX","url":"https://source.android.com/security/bulletin/pixel/2023-03-01"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-21020.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"13.0"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"}]}