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[email protected]CVE-2021-0920

HistoryDec 15, 2021 - 7:15 p.m.

CVE-2021-0920

2021-12-1519:15:11

CWE-416

CWE-362

[email protected]

web.nvd.nist.gov

1151

In Wild

cve-2021-0920

af_unix.c

race condition

local escalation

privilege escalation

android

kernel

nvd

6.9 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:C/I:C/A:C

6.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.1 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

28.2%

JSON

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

Affected configurations

NVD

Node

googleandroid

Node

debiandebian_linuxMatch9.0

CPENameOperatorVersion
google:androidgoogle androideq*

CPE	Name	Operator	Version
google:android	google android	eq	*

CNA Affected

[
  {
    "product": "Android",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Android kernel"
      }
    ]
  }
]