CVE-2021-43400

bluez: use-after-free in gatt-database.c

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Severity

Moderate

Red Hat Product Security

9.1

CVSS 3.1

Review impact separately from score.

Published · November 5, 2021

Updated · November 21, 2025

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.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 9.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CWE-416 · Use After Free