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[email protected]CVE-2021-39714

HistoryMar 16, 2022 - 3:15 p.m.

CVE-2021-39714

2022-03-1615:15:11

CWE-190

CWE-416

[email protected]

web.nvd.nist.gov

101

cve-2021-39714

ion_buffer_kmap_get

integer overflow

local escalation

privilege escalation

android kernel

nvd

security vulnerability

4.6 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.5 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

9.6%

JSON

In ion_buffer_kmap_get of ion.c, there is a possible use-after-free due to an integer overflow. 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-205573273References: Upstream kernel

Affected configurations

NVD

Node

googleandroidMatch-

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"
      }
    ]
  }
]