CVE-2021-47522

2024-05-2415:15:14

CWE-476

416baaa9-dc9f-4396-8d5f-8c081fb06d67

web.nvd.nist.gov

linux kernel

vulnerability

hid

bigbenff

null pointer dereference

uhid

nvd

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

6.7 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

5.1%

JSON

In the Linux kernel, the following vulnerability has been resolved:

HID: bigbenff: prevent null pointer dereference

When emulating the device through uhid, there is a chance we don’t have
output reports and so report_field is null.

Affected configurations

Vulners

NVD

Node

linuxlinux_kernelRange5.4.0–5.4.165

linuxlinux_kernelRange5.5.0–5.10.85

linuxlinux_kernelRange5.11.0–5.15.8

linuxlinux_kernelRange5.16.0≥

CPENameOperatorVersion
linux:linux_kernellinux linux kernellt5.4.165
linux:linux_kernellinux linux kernellt5.10.85
linux:linux_kernellinux linux kernellt5.15.8

CPE	Name	Operator	Version
linux:linux_kernel	linux linux kernel	lt	5.4.165
linux:linux_kernel	linux linux kernel	lt	5.10.85
linux:linux_kernel	linux linux kernel	lt	5.15.8

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/hid/hid-bigbenff.c"
    ],
    "versions": [
      {
        "version": "1da177e4c3f4",
        "lessThan": "8e0ceff632f4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f4",
        "lessThan": "6272b17001e6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f4",
        "lessThan": "58f15f5ae778",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f4",
        "lessThan": "918aa1ef104d",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/hid/hid-bigbenff.c"
    ],
    "versions": [
      {
        "version": "5.4.165",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.85",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.8",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.16",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]