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CVE-2021-0920

MEDIUMCISA KEV

6.4

Description

In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel

CVE Details

CVSS v3.1 Score6.4

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack VectorLOCAL

ComplexityHIGH

Privileges RequiredHIGH

User InteractionNONE

Published12/15/2021

Last Modified10/23/2025

Sourcekev

Honeypot Sightings0

CISA KEV

VendorAndroid

ProductKernel

Vulnerability NameAndroid Kernel Race Condition Vulnerability

KEV Date Added2022-05-23

Remediation Due Date2022-06-13

Ransomware UseUnknown

Affected Products

debian:debian_linuxgoogle:androidlinux:linux_kernel

Weaknesses (CWE)

CWE-362CWE-416CWE-416

References

https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html(security@android.com)

https://source.android.com/security/bulletin/2021-11-01(security@android.com)

https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html(af854a3a-2127-422b-91ae-364da2661108)

https://source.android.com/security/bulletin/2021-11-01(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-0920(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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