Linux Kernel Bluetooth Stack Buffer Overflow Vulnerability in btintel Component

Vulnerability

A stack buffer overflow vulnerability has been identified in the Bluetooth btintel component of the Linux kernel. This issue arises from improper handling of the size of the btintel_dsbr structure when querying the size of an EFI variable. If the EFI variable is larger than the expected size, it can lead to a buffer overflow.

Impact

Exploitation of this vulnerability causes a stack buffer overflow, which can potentially be exploited to execute arbitrary code or cause a denial-of-service condition.

Added: Jul 10, 2025, 8:24 AM
Updated: Jul 10, 2025, 8:24 AM

Vulnerability Rating

Custom Algorithm
spread
9.0
impact
2.5
exploitability
5.3
remediation
7.7
relevance
0.2
threat
3.2
urgency
2.9
incentive
1.7

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.