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[email protected]CVE-2021-33656

HistoryJul 18, 2022 - 3:15 p.m.

CVE-2021-33656

2022-07-1815:15:08

CWE-787

[email protected]

web.nvd.nist.gov

141

nvd

cve-2021-33656

font

kernel

memory

security

CVSS3

6.8

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.3

Confidence

High

EPSS

0.001

Percentile

32.6%

JSON

When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.

Affected configurations

NVD

Node

huaweiopeneulerMatch20.03-lts

huaweiopeneulerMatch20.03sp1lts

huaweiopeneulerMatch20.03sp3lts

Node

linuxlinux_kernelRange<5.10.127

Node

debiandebian_linuxMatch10.0

VendorProductVersionCPE
huaweiopeneuler20.03cpe:/o:huawei:openeuler:20.03:sp3:lts:
huaweiopeneuler20.03cpe:/o:huawei:openeuler:20.03:sp1:lts:
huaweiopeneuler20.03cpe:/o:huawei:openeuler:20.03:-:lts:

Vendor	Product	Version	CPE
huawei	openeuler	20.03	cpe:/o:huawei:openeuler:20.03:sp3:lts:
huawei	openeuler	20.03	cpe:/o:huawei:openeuler:20.03:sp1:lts:
huawei	openeuler	20.03	cpe:/o:huawei:openeuler:20.03:-:lts:

CNA Affected

[
  {
    "product": "openEuler:kernel",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "<5.10.127"
      }
    ]
  }
]