CVE-2021-47485

2024-05-2209:15:10

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

web.nvd.nist.gov

linux kernel

buffer overflow

vulnerability

nvd

7.2 High

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

13.0%

JSON

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

IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields

Overflowing either addrlimit or bytes_togo can allow userspace to trigger
a buffer overflow of kernel memory. Check for overflows in all the places
doing math on user controlled buffers.

Affected configurations

Vulners

Node

linuxlinux_kernelRange2.6.35–4.4.292

linuxlinux_kernelRange4.5.0–4.9.290

linuxlinux_kernelRange4.10.0–4.14.255

linuxlinux_kernelRange4.15.0–4.19.216

linuxlinux_kernelRange4.20.0–5.4.157

linuxlinux_kernelRange5.5.0–5.10.77

linuxlinux_kernelRange5.11.0–5.14.16

linuxlinux_kernelRange5.15.0≥

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/infiniband/hw/qib/qib_user_sdma.c"
    ],
    "versions": [
      {
        "version": "f931551bafe1",
        "lessThan": "bda41654b6e0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f931551bafe1",
        "lessThan": "3f57c3f67fd9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f931551bafe1",
        "lessThan": "60833707b968",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f931551bafe1",
        "lessThan": "73d2892148aa",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f931551bafe1",
        "lessThan": "0f8cdfff0682",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f931551bafe1",
        "lessThan": "c3e17e58f571",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f931551bafe1",
        "lessThan": "0d4395477741",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f931551bafe1",
        "lessThan": "d39bf40e55e6",
        "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/infiniband/hw/qib/qib_user_sdma.c"
    ],
    "versions": [
      {
        "version": "2.6.35",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.35",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.4.292",
        "lessThanOrEqual": "4.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.9.290",
        "lessThanOrEqual": "4.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.14.255",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.216",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.157",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.77",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.14.16",
        "lessThanOrEqual": "5.14.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]