GLSA 202003-49: BlueZ: Security bypass

http://security.gentoo.org/

Severity:	high
Title:	BlueZ: Security bypass
Date:	03/25/2020
Bugs:	#712292
ID:	202003-49

Synopsis

A vulnerability in BlueZ might allow remote attackers to bypass security restrictions.

Background

Set of tools to manage Bluetooth devices for Linux.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-wireless/bluez	< 5.54	>= 5.54	All supported architectures

Description

It was discovered that the HID and HOGP profiles implementations in BlueZ did not specifically require bonding between the device and the host.

Impact

A remote attacker with adjacent access could impersonate an existing HID device, cause a Denial of Service condition or escalate privileges.

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-5.54"

References

CVE-2020-0556

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202003-49.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.