GLSA 202011-01: BlueZ: Arbitrary code execution

http://security.gentoo.org/

Severity:	normal
Title:	BlueZ: Arbitrary code execution
Date:	11/03/2020
Bugs:	#749285
ID:	202011-01

Synopsis

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

Background

Set of tools to manage Bluetooth devices for Linux.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-wireless/bluez	< 5.55	>= 5.55	All supported architectures

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

CVE-2020-27153

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202011-01.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.