CVE-2022-20421
Summary
| CVE | CVE-2022-20421 |
|---|---|
| State | PUBLISHED |
| Assigner | google_android |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2022-10-11 20:15:12 UTC |
| Updated | 2026-10-14 15:16:59 UTC |
| 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 |
Risk And Classification
Primary CVSS: v3.1 7.8 HIGH from [email protected]
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.007270000 probability, percentile 0.531240000 (date 2026-10-14)
Problem Types: CWE-416 | Elevation of privilege
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Debian | Debian Linux | 10.0 | All | All | All |
| Operating System | Debian | Debian Linux | 11.0 | All | All | All |
| Operating System | Android | - | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Na | Android | affected Android kernel | Not specified |
| ADP | Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem | affected V1.1 custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Debian -- Security Information -- DSA-5257-1 linux | af854a3a-2127-422b-91ae-364da2661108 | www.debian.org | Third Party Advisory |
| Android Security Bulletin—October 2022 | Android Open Source Project | af854a3a-2127-422b-91ae-364da2661108 | source.android.com | Patch, Vendor Advisory |
| [SECURITY] [DLA 3173-1] linux-5.10 security update | af854a3a-2127-422b-91ae-364da2661108 | lists.debian.org | Mailing List, Third Party Advisory |
| cert-portal.siemens.com/productcert/html/ssa-831302.html | 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e | cert-portal.siemens.com | |
| cert-portal.siemens.com/productcert/html/ssa-770721.html | 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e | cert-portal.siemens.com | |
| cert-portal.siemens.com/productcert/html/ssa-794697.html | 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e | cert-portal.siemens.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 181105 Debian Security Update for linux (CVE-2022-20421)
- 181145 Debian Security Update for linux (DSA 5257-1)
- 181190 Debian Security Update for linux-5.10 (DLA 3173-1)
- 199087 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5792-1)
- 199088 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5791-1)
- 199089 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5793-1)
- 199090 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5790-1)
- 199091 Ubuntu Security Notification for Linux kernel (Azure) Vulnerabilities (USN-5791-2)
- 199094 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5792-2)
- 199096 Ubuntu Security Notification for Linux kernel (Azure) Vulnerabilities (USN-5793-2)
- 199098 Ubuntu Security Notification for Linux kernel (IBM) Vulnerabilities (USN-5793-4)
- 199099 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5793-3)
- 199100 Ubuntu Security Notification for Linux kernel (Azure) Vulnerabilities (USN-5791-3)
- 199119 Ubuntu Security Notification for Linux kernel (BlueField) Vulnerabilities (USN-5815-1)
- 199179 Ubuntu Security Notification for Linux kernel (GKE) Vulnerabilities (USN-5877-1)
- 591406 Siemens SIMATIC S7-1500 CPU GNU/Linux subsystem Multiple Vulnerabilities (SSB-439005, ICSA-22-104-13)
- 610437 Google Android Devices October 2022 Security Patch Missing
- 610444 Google Android November 2022 Security Patch Missing for Samsung
- 610445 Google Android November 2022 Security Patch Missing for Huawei EMUI