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LinuxCVE-2021-47518

HistoryMay 24, 2024 - 3:15 p.m.

CVE-2021-47518

2024-05-2415:15:13

CWE-476

Linux

web.nvd.nist.gov

linux kernel

vulnerability

null pointer

nfc_genl_dump_ses_done

nfc.

CVSS3

5.5

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

AI Score

6.7

Confidence

Low

EPSS

Percentile

5.1%

JSON

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

nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done

The done() netlink callback nfc_genl_dump_ses_done() should check if
received argument is non-NULL, because its allocation could fail earlier
in dumpit() (nfc_genl_dump_ses()).

Affected configurations

Nvd

Vulners

Node

linuxlinux_kernelRange3.12–4.4.295

linuxlinux_kernelRange4.5–4.9.293

linuxlinux_kernelRange4.10–4.14.258

linuxlinux_kernelRange4.15–4.19.221

linuxlinux_kernelRange4.20–5.4.165

linuxlinux_kernelRange5.5–5.10.85

linuxlinux_kernelRange5.11–5.15.8

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/nfc/netlink.c"
    ],
    "versions": [
      {
        "version": "ac22ac466a65",
        "lessThan": "87cdb8789c38",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ac22ac466a65",
        "lessThan": "69bb79a8f5bb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ac22ac466a65",
        "lessThan": "811a75767477",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ac22ac466a65",
        "lessThan": "3b861a40325e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ac22ac466a65",
        "lessThan": "48fcd08fdbe0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ac22ac466a65",
        "lessThan": "83ea620a1be8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ac22ac466a65",
        "lessThan": "fae9705d2810",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ac22ac466a65",
        "lessThan": "4cd8371a234d",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/nfc/netlink.c"
    ],
    "versions": [
      {
        "version": "3.12",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.12",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.4.295",
        "lessThanOrEqual": "4.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.9.293",
        "lessThanOrEqual": "4.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.14.258",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.221",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "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"
      }
    ]
  }
]