[Bluetooth][GATT] Use-After-Free in function `gatt_process_prep_write_rsp`.

2023-09-0100:00:00

Google

osv.dev

bluetooth

gatt

use-after-free

privilege escalation

code execution

software

CVSS3

8.8

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

Confidence

High

EPSS

0.001

Percentile

17.8%

JSON

In gatt_process_prep_write_rsp of gatt_cl.cc, there is a possible privilege escalation due to a use after free. This could lead to remote (proximal/adjacent) code execution with no additional execution privileges needed. User interaction is not needed for exploitation.