{"id":"CVE-2021-0920","details":"In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel","aliases":["A-196926917","ASB-A-196926917"],"modified":"2026-03-12T21:53:40.297812795Z","published":"2021-12-15T19:15:11.017Z","related":["ALSA-2022:0825","SUSE-SU-2022:0068-1","SUSE-SU-2022:0080-1","SUSE-SU-2022:0090-1","SUSE-SU-2022:0366-1","SUSE-SU-2022:0367-1","SUSE-SU-2022:0371-1","SUSE-SU-2022:0615-1","SUSE-SU-2022:0619-1","SUSE-SU-2022:0647-1","SUSE-SU-2022:0660-1","SUSE-SU-2022:0667-1","SUSE-SU-2022:0668-1","SUSE-SU-2022:0756-1","SUSE-SU-2022:0762-1","SUSE-SU-2022:0996-1","SUSE-SU-2022:1034-1","SUSE-SU-2022:1037-1","SUSE-SU-2022:1038-1","SUSE-SU-2022:1039-1","SUSE-SU-2022:1197-1","SUSE-SU-2022:1257-1","SUSE-SU-2026:0688-1","openSUSE-SU-2022:0366-1","openSUSE-SU-2022:1037-1","openSUSE-SU-2022:1039-1"],"references":[{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html"},{"type":"ADVISORY","url":"https://source.android.com/security/bulletin/2021-11-01"},{"type":"ADVISORY","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-0920"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"5.13"}]},{"events":[{"introduced":"0"},{"last_affected":"5.14-rc1"}]},{"events":[{"introduced":"0"},{"last_affected":"5.14-rc2"}]},{"events":[{"introduced":"0"},{"last_affected":"5.14-rc3"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]}],"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-0920.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H"}]}