CVE-2022-20566

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Summary

CVECVE-2022-20566
StatePUBLISHED
Assignergoogle_android
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-12-16 16:15:19 UTC
Updated2026-10-14 16:17:22 UTC
DescriptionIn l2cap_chan_put of l2cap_core, there is a possible use after free due to improper locking. 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-165329981References: 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: 0.002040000 probability, percentile 0.096850000 (date 2026-10-14)

Problem Types: CWE-416 | CWE-667 | Elevation of privilege | CWE-416 CWE-416 Use After Free | CWE-667 CWE-667 Improper Locking

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1ADPDECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS: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)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Google Android - All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
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

ReferenceSourceLinkTags
Pixel Update Bulletin—December2022  |  Android Open Source Project af854a3a-2127-422b-91ae-364da2661108 source.android.com Patch, Vendor Advisory
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

Legacy QID Mappings

  • 181299 Debian Security Update for linux (CVE-2022-20566)
  • 199210 Ubuntu Security Notification for Linux kernel (OEM) Vulnerabilities (USN-5913-1)
  • 199555 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5926-1)
  • 199590 Ubuntu Security Notification for Linux kernel (AWS) Vulnerabilities (USN-5884-1)
  • 378473 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX2-SA-2023:0021)
  • 610451 Google Pixel Android December 2022 Security Patch Missing
  • 672747 EulerOS Security Update for kernel (EulerOS-SA-2023-1469)
  • 673117 EulerOS Security Update for kernel (EulerOS-SA-2023-2152)

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