{"id":"CVE-2023-21020","aliases":["A-256591441","EUVD-2023-25188","GHSA-6g7v-365p-9jh2","PUB-A-256591441"],"status":"published","title":"In registerSignalHandlers of main.c, there is a possible local arbitrary code execution due to a...","description":"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","severity":{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00097,"percentile":0.00731,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-416"],"published":"2023-03-01T00:00:00Z","modified":"2026-11-05T16:32:28Z","fixes":[{"ecosystem":"Android","package":"platform/packages/modules/StatsD","fixed_in":["13:2023-03-01"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Android","package":"platform/packages/modules/StatsD","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13:0"},{"fixed":"13:2023-03-01"}]}],"versions":["13"]}],"products":[{"vendor":"google","product":"android"}],"references":[{"url":"https://source.android.com/security/bulletin/pixel/2023-03-01","tags":["x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-21020"},{"url":"https://github.com/advisories/GHSA-6g7v-365p-9jh2"},{"url":"https://source.android.com/security/bulletin/2023-03-01","tags":["advisory"]},{"url":"https://android.googlesource.com/platform/packages/modules/StatsD/+/992c86cfa9b615e8e62426a5014a0b10501a37b0","tags":["fix"]}],"sources":{"cve":[{"id":"CVE-2023-21020","description":"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","status":"published","published":"2023-03-24T00:00:00Z","modified":"2025-02-24T15:02:34.488Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"adp"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:35:20.368244Z"}],"euvd":[{"id":"EUVD-2023-25188","description":"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","status":"published","published":"2023-03-24T00:00:00Z","modified":"2025-02-24T15:02:34Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"updated_at":"2026-11-02T20:53:25.517067Z"}],"ghsa":[{"id":"GHSA-6g7v-365p-9jh2","title":"In registerSignalHandlers of main.c, there is a possible local arbitrary code execution due to a...","description":"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","status":"published","published":"2023-03-24T21:30:51Z","modified":"2023-04-06T05:08:05Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:54:27.289188Z"}],"nvd":[{"id":"CVE-2023-21020","description":"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","status":"published","published":"2023-03-24T20:15:13.287Z","modified":"2026-06-17T05:31:30.53Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary"},{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:07:50.908252Z"}],"osv":[{"id":"PUB-A-256591441","description":"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.","status":"published","published":"2023-03-01T00:00:00Z","modified":"2026-11-05T16:32:28.703711716Z","updated_at":"2026-11-05T17:55:17.438327Z"}]}}