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Google_androidCVE-2021-0920

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

CVE-2021-0920

2021-12-1519:15:11

CWE-362

CWE-416

google_android

web.nvd.nist.gov

1172

In Wild

cve-2021-0920

af_unix.c

race condition

local escalation

privilege escalation

android

kernel

nvd

CVSS2

6.9

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

CVSS3

6.4

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

AI Score

7.1

Confidence

High

EPSS

0.001

Percentile

28.0%

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

VendorProductVersionCPE
googleandroid*cpe:2.3:o:google:android:*:*:*:*:*:*:*:*
debiandebian_linux9.0cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
google	android	*	cpe:2.3:o:google:android::::::::
debian	debian_linux	9.0	cpe:2.3:o:debian:debian_linux:9.0:::::::*

CNA Affected

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