CVE-2021-1048

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Summary

CVECVE-2021-1048
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-12-15 19:15:00 UTC
Updated2021-12-20 16:56:00 UTC
DescriptionIn ep_loop_check_proc of eventpoll.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-204573007References: Upstream kernel

Risk And Classification

EPSS: 0.013500000 probability, percentile 0.800450000 (date 2026-04-01)

CISA KEV: Listed on 2022-05-23; due 2022-06-13; ransomware use Unknown

Problem Types: CWE-416

CISA Known Exploited Vulnerability

VendorAndroid
ProductKernel
NameAndroid Kernel Use-After-Free Vulnerability
Required ActionApply updates per vendor instructions.
Noteshttps://nvd.nist.gov/vuln/detail/CVE-2021-1048

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Google Android - All All All

References

ReferenceSourceLinkTags
Android Security Bulletin—November 2021  |  Android Open Source Project MISC source.android.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
CISA Known Exploited Vulnerabilities catalog CISA www.cisa.gov kev

Legacy QID Mappings

  • 159614 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2022-9014)
  • 159621 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2022-9088)
  • 179866 Debian Security Update for linux (CVE-2021-1048)
  • 390254 Oracle Managed Virtualization (VM) Server for x86 Security Update for kernel (OVMSA-2022-0005)
  • 390256 Oracle Managed Virtualization (VM) Server for x86 Security Update for kernel (OVMSA-2022-0007)
  • 610380 Google Android Devices November 2021 Security Patch Missing
  • 610385 Google Android December 2021 Security Patch Missing for Samsung
  • 610388 Google Android December 2021 Security Patch Missing for Huawei EMUI
  • 671344 EulerOS Security Update for kernel (EulerOS-SA-2022-1271)
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