BlueZ: Arbitrary code execution — GLSA 202011-01

A vulnerability in BlueZ might allow remote attackers to execute arbitrary code.

Affected packages

net-wireless/bluez on all architectures
Affected versions < 5.55
Unaffected versions >= 5.55

Background

Set of tools to manage Bluetooth devices for Linux.

Description

It was discovered that there was a double-free vulnerability in Bluez after the service discovery which occurs after a Bluetoth Low Energy (BLE) connection has been established to a device.

Impact

A remote attacker, by enticing a user to connect to a malicious GATT server or device, could cause the execution of arbitrary code with the privileges of the user running gatttool client or cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All BlueZ users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=net-wireless/bluez-5.55"
 

References

Release date
November 03, 2020

Latest revision
November 03, 2020: 1

Severity
normal

Exploitable
remote

Bugzilla entries