CVE-2024-42075

2024-07-2916:15:06

CWE-416

Linux

web.nvd.nist.gov

linux kernel

bpf

arena vulnerability

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

6.6

Confidence

Low

EPSS

Percentile

9.4%

JSON

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

bpf: Fix remap of arena.

The bpf arena logic didn’t account for mremap operation. Add a refcnt for
multiple mmap events to prevent use-after-free in arena_vm_close.

Affected configurations

Nvd

Vulners

Node

linuxlinux_kernelRange<6.9

linuxlinux_kernelRange6.9.1–6.9.8

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": [
      "kernel/bpf/arena.c"
    ],
    "versions": [
      {
        "version": "317460317a02",
        "lessThan": "87496a1b01e8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "317460317a02",
        "lessThan": "b90d77e5fd78",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/bpf/arena.c"
    ],
    "versions": [
      {
        "version": "6.9",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.9",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9.8",
        "lessThanOrEqual": "6.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.10",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]