Vulnerabilities > CVE-2023-31083 - NULL Pointer Dereference vulnerability in Linux Kernel 6.2

047910
CVSS 4.7 - MEDIUM
Attack vector
LOCAL
Attack complexity
HIGH
Privileges required
LOW
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
HIGH
local
high complexity
linux
CWE-476
NVD
Published: 2023-04-24
Updated: 2024-11-21

Summary

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.

Vulnerable Configurations

Part Description Count
OS
Linux
1

Common Weakness Enumeration (CWE)

References