CVE-2024-36934

2024-05-3016:15:16

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

web.nvd.nist.gov

linux kernel

bna driver

vulnerability

nul termination

oob read

memdup_user_nul

6.6 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

13.2%

JSON

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

bna: ensure the copied buf is NUL terminated

Currently, we allocate a nbytes-sized kernel buffer and copy nbytes from
userspace to that buffer. Later, we use sscanf on this buffer but we don’t
ensure that the string is terminated inside the buffer, this can lead to
OOB read when using sscanf. Fix this issue by using memdup_user_nul
instead of memdup_user.

Affected configurations

Vulners

Node

linuxlinux_kernelRange3.3–4.19.314

linuxlinux_kernelRange4.20.0–5.4.276

linuxlinux_kernelRange5.5.0–5.10.217

linuxlinux_kernelRange5.11.0–5.15.159

linuxlinux_kernelRange5.16.0–6.1.91

linuxlinux_kernelRange6.2.0–6.6.31

linuxlinux_kernelRange6.7.0–6.8.10

linuxlinux_kernelRange6.9.0≥

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/ethernet/brocade/bna/bnad_debugfs.c"
    ],
    "versions": [
      {
        "version": "7afc5dbde091",
        "lessThan": "bd502ba81cd1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7afc5dbde091",
        "lessThan": "80578ec10335",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7afc5dbde091",
        "lessThan": "6f0f19b79c08",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7afc5dbde091",
        "lessThan": "0f560240b4cc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7afc5dbde091",
        "lessThan": "06cb37e2ba64",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7afc5dbde091",
        "lessThan": "e19478763154",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7afc5dbde091",
        "lessThan": "1518b2b498a0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7afc5dbde091",
        "lessThan": "8c34096c7fdf",
        "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/net/ethernet/brocade/bna/bnad_debugfs.c"
    ],
    "versions": [
      {
        "version": "3.3",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.3",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.314",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.276",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.217",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.159",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.91",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.31",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.8.10",
        "lessThanOrEqual": "6.8.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]