{"api_version":"1","generated_at":"2026-04-23T01:33:04+00:00","cve":"CVE-2022-20421","urls":{"html":"https://cve.report/CVE-2022-20421","api":"https://cve.report/api/cve/CVE-2022-20421.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2022-20421","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2022-20421"},"summary":{"title":"CVE-2022-20421","description":"In binder_inc_ref_for_node of binder.c, there is a possible way to corrupt memory due to a use after free. 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-239630375References: Upstream kernel","state":"PUBLIC","assigner":"security@android.com","published_at":"2022-10-11 20:15:00","updated_at":"2022-12-03 02:42:00"},"problem_types":["CWE-416"],"metrics":[],"references":[{"url":"https://www.debian.org/security/2022/dsa-5257","name":"DSA-5257","refsource":"DEBIAN","tags":[],"title":"Debian -- Security Information -- DSA-5257-1 linux","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html","name":"[debian-lts-announce] 20221101 [SECURITY] [DLA 3173-1] linux-5.10 security update","refsource":"MLIST","tags":[],"title":"[SECURITY] [DLA 3173-1] linux-5.10 security update","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://source.android.com/security/bulletin/2022-10-01","name":"https://source.android.com/security/bulletin/2022-10-01","refsource":"MISC","tags":[],"title":"Android Security Bulletin—October 2022  |  Android Open Source Project","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-20421","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-20421","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2022","cve_id":"20421","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"10.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2022","cve_id":"20421","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"11.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2022","cve_id":"20421","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"google","cpe5":"android","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2022-20421","qid":"181105","title":"Debian Security Update for linux (CVE-2022-20421)"},{"cve":"CVE-2022-20421","qid":"181145","title":"Debian Security Update for linux (DSA 5257-1)"},{"cve":"CVE-2022-20421","qid":"181190","title":"Debian Security Update for linux-5.10 (DLA 3173-1)"},{"cve":"CVE-2022-20421","qid":"199087","title":"Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5792-1)"},{"cve":"CVE-2022-20421","qid":"199088","title":"Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5791-1)"},{"cve":"CVE-2022-20421","qid":"199089","title":"Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5793-1)"},{"cve":"CVE-2022-20421","qid":"199090","title":"Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5790-1)"},{"cve":"CVE-2022-20421","qid":"199091","title":"Ubuntu Security Notification for Linux kernel (Azure) Vulnerabilities (USN-5791-2)"},{"cve":"CVE-2022-20421","qid":"199094","title":"Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5792-2)"},{"cve":"CVE-2022-20421","qid":"199096","title":"Ubuntu Security Notification for Linux kernel (Azure) Vulnerabilities (USN-5793-2)"},{"cve":"CVE-2022-20421","qid":"199098","title":"Ubuntu Security Notification for Linux kernel (IBM) Vulnerabilities (USN-5793-4)"},{"cve":"CVE-2022-20421","qid":"199099","title":"Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5793-3)"},{"cve":"CVE-2022-20421","qid":"199100","title":"Ubuntu Security Notification for Linux kernel (Azure) Vulnerabilities (USN-5791-3)"},{"cve":"CVE-2022-20421","qid":"199119","title":"Ubuntu Security Notification for Linux kernel (BlueField) Vulnerabilities (USN-5815-1)"},{"cve":"CVE-2022-20421","qid":"199179","title":"Ubuntu Security Notification for Linux kernel (GKE) Vulnerabilities (USN-5877-1)"},{"cve":"CVE-2022-20421","qid":"591406","title":"Siemens SIMATIC S7-1500 CPU GNU/Linux subsystem Multiple Vulnerabilities (SSB-439005, ICSA-22-104-13)"},{"cve":"CVE-2022-20421","qid":"610437","title":"Google Android Devices October 2022 Security Patch Missing"},{"cve":"CVE-2022-20421","qid":"610444","title":"Google Android November 2022 Security Patch Missing for Samsung"},{"cve":"CVE-2022-20421","qid":"610445","title":"Google Android November 2022 Security Patch Missing for Huawei EMUI"}]},"source_records":{"cve_program":{"data_type":"CVE","data_format":"MITRE","data_version":"4.0","CVE_data_meta":{"ID":"CVE-2022-20421","ASSIGNER":"security@android.com","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"vendor_name":"n/a","product":{"product_data":[{"product_name":"Android","version":{"version_data":[{"version_value":"Android kernel"}]}}]}}]}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Elevation of privilege"}]}]},"references":{"reference_data":[{"refsource":"MISC","name":"https://source.android.com/security/bulletin/2022-10-01","url":"https://source.android.com/security/bulletin/2022-10-01"},{"refsource":"DEBIAN","name":"DSA-5257","url":"https://www.debian.org/security/2022/dsa-5257"},{"refsource":"MLIST","name":"[debian-lts-announce] 20221101 [SECURITY] [DLA 3173-1] linux-5.10 security update","url":"https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html"}]},"description":{"description_data":[{"lang":"eng","value":"In binder_inc_ref_for_node of binder.c, there is a possible way to corrupt memory due to a use after free. 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-239630375References: Upstream kernel"}]}},"nvd":{"publishedDate":"2022-10-11 20:15:00","lastModifiedDate":"2022-12-03 02:42:00","problem_types":["CWE-416"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:google:android:-:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2022","CveId":"20421","Ordinal":"218678","Title":"CVE-2022-20421","CVE":"CVE-2022-20421","Year":"2022"},"notes":[{"CveYear":"2022","CveId":"20421","Ordinal":"1","NoteData":"** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided.","Type":"Description","Title":null}]}}}