CVE-2023-31083

Published Apr 24, 2023

Last updated 8 months ago

Overview

Description: An issue was discovered in drivers/bluetooth/hci_ldisc.c in the Linux kernel 6.2. In hci_uart_tty_ioctl, there is a race condition between HCIUARTSETPROTO and HCIUARTGETPROTO. HCI_UART_PROTO_SET is set before hu->proto is set. A NULL pointer dereference may occur.
Source: cve@mitre.org
NVD status: Modified

Risk scores

CVSS 3.1

Type: Primary
Base score: 4.7
Impact score: 3.6
Exploitability score: 1
Vector string: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Severity: MEDIUM

Weaknesses

nvd@nist.gov: CWE-362

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:o:linux:linux_kernel:6.2:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "B6FAA415-53CF-4007-875A-9045AD1A540F"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

References