CVE-2021-43400

CRITICAL

BlueZ - Use-After-Free in gatt-database.c via D-Bus WriteValue Processing

Title source: llm
STIX 2.1

Description

An issue was discovered in gatt-database.c in BlueZ 5.61. A use-after-free can occur when a client disconnects during D-Bus processing of a WriteValue call.

References (3)

Core 3

Scores

CVSS v3 9.1
EPSS 0.0154
EPSS Percentile 71.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Details

CWE
CWE-416
Status published
Products (2)
bluez/bluez 5.61
debian/debian_linux 10.0
Published Nov 04, 2021
Tracked Since Feb 18, 2026