{"id":"CVE-2022-20377","aliases":["A-222339795","EUVD-2022-25637","GHSA-pr4w-5j3v-gj63","PUB-A-222339795"],"status":"published","title":"In TBD of keymaster_ipc.cpp, there is a possible to force gatekeeper, fingerprint, and faceauth...","description":"In TBD of keymaster_ipc.cpp, there is a possible to force gatekeeper, fingerprint, and faceauth to use a known HMAC key. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-222339795References: N/A","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":0.00105,"percentile":0.0105,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2022-08-01T00:00:00Z","modified":"2026-11-05T16:32:28Z","fixes":[{"ecosystem":"Android","package":":unknown:","fixed_in":["qt:2022-08-05","rvc:2022-08-05","rvc-qpr:2022-08-05","sc:2022-08-05","sc-v2:2022-08-05"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Android","package":":unknown:","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"qt:0"},{"fixed":"qt:2022-08-05"}]}],"versions":["qt"]},{"source":"osv","ecosystem":"Android","package":":unknown:","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"rvc:0"},{"fixed":"rvc:2022-08-05"}]}],"versions":["rvc"]},{"source":"osv","ecosystem":"Android","package":":unknown:","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"rvc-qpr:0"},{"fixed":"rvc-qpr:2022-08-05"}]}],"versions":["rvc-qpr"]},{"source":"osv","ecosystem":"Android","package":":unknown:","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"sc:0"},{"fixed":"sc:2022-08-05"}]}],"versions":["sc"]},{"source":"osv","ecosystem":"Android","package":":unknown:","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"sc-v2:0"},{"fixed":"sc-v2:2022-08-05"}]}],"versions":["sc-v2"]}],"products":[{"vendor":"google","product":"android"}],"references":[{"url":"https://source.android.com/security/bulletin/pixel/2022-08-01","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-20377"},{"url":"https://github.com/advisories/GHSA-pr4w-5j3v-gj63"},{"url":"https://source.android.com/security/bulletin/2022-08-01","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2022-20377","description":"In TBD of keymaster_ipc.cpp, there is a possible to force gatekeeper, fingerprint, and faceauth to use a known HMAC key. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-222339795References: N/A","status":"published","published":"2022-08-11T15:01:43Z","modified":"2024-08-03T02:10:44.549Z","updated_at":"2026-11-02T14:34:24.971323Z"}],"euvd":[{"id":"EUVD-2022-25637","description":"In TBD of keymaster_ipc.cpp, there is a possible to force gatekeeper, fingerprint, and faceauth to use a known HMAC key. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-222339795References: N/A","status":"published","published":"2022-08-11T15:01:43Z","modified":"2024-08-03T02:10:44Z","updated_at":"2026-11-03T03:25:54.509519Z"}],"ghsa":[{"id":"GHSA-pr4w-5j3v-gj63","title":"In TBD of keymaster_ipc.cpp, there is a possible to force gatekeeper, fingerprint, and faceauth...","description":"In TBD of keymaster_ipc.cpp, there is a possible to force gatekeeper, fingerprint, and faceauth to use a known HMAC key. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-222339795References: N/A","status":"published","published":"2022-08-12T00:01:22Z","modified":"2023-02-02T05:02:39Z","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":"2026-11-02T14:51:29.373702Z"}],"nvd":[{"id":"CVE-2022-20377","description":"In TBD of keymaster_ipc.cpp, there is a possible to force gatekeeper, fingerprint, and faceauth to use a known HMAC key. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-222339795References: N/A","status":"published","published":"2022-08-11T15:15:11.047Z","modified":"2026-06-17T04:24:10.633Z","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"}],"updated_at":"2026-11-02T14:07:24.750124Z"}],"osv":[{"id":"PUB-A-222339795","description":"In TBD of keymaster_ipc.cpp, there is a possible to force gatekeeper, fingerprint, and faceauth to use a known HMAC key. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.","status":"published","published":"2022-08-01T00:00:00Z","modified":"2026-11-05T16:32:28.703711716Z","updated_at":"2026-11-05T17:55:17.438327Z"}]}}