The following updates has been released for Ubuntu Linux:

USN-3856-1: GNOME Bluetooth vulnerability
USN-3857-1: PEAR vulnerability

USN-3856-1: GNOME Bluetooth vulnerability

==========================================================================
Ubuntu Security Notice USN-3856-1
January 14, 2019

gnome-bluetooth vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS

Summary:

GNOME Bluetooth could allow unintended access to devices.

Software Description:
- gnome-bluetooth: GNOME Bluetooth tools

Details:

Chris Marchesi discovered that BlueZ incorrectly handled disabling
Bluetooth visibility. A remote attacker could possibly pair to devices,
contrary to expectations. This update adds a workaround to GNOME Bluetooth
to fix the issue.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.04 LTS:
gnome-bluetooth 3.28.0-2ubuntu0.1
libgnome-bluetooth13 3.28.0-2ubuntu0.1

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
https://usn.ubuntu.com/usn/usn-3856-1
CVE-2018-10910

Package Information:
https://launchpad.net/ubuntu/+source/gnome-bluetooth/3.28.0-2ubuntu0.1

USN-3857-1: PEAR vulnerability

==========================================================================
Ubuntu Security Notice USN-3857-1
January 14, 2019

php-pear vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

XXX FILL ME IN: Summary for regular (non-admin) users XXX

XXX LOCAL TEMPLATES XXX
PEAR could be made to run programs if it processed a specially crafted
file.

Software Description:
- php-pear: PHP Extension and Application Repository

Details:

Fariskhi Vidyan discovered that PEAR Archive_Tar incorrectly handled
certain archive paths. A remote attacker could possibly use this issue to
execute arbitrary code.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.10:
php-pear 1:1.10.5+submodules+notgz-1ubuntu1.18.10.1

Ubuntu 18.04 LTS:
php-pear 1:1.10.5+submodules+notgz-1ubuntu1.18.04.1

Ubuntu 16.04 LTS:
php-pear 1:1.10.1+submodules+notgz-6ubuntu0.1

In general, a standard system update will make all the necessary changes.

References:
https://usn.ubuntu.com/usn/usn-3857-1
CVE-2018-1000888

Package Information:

https://launchpad.net/ubuntu/+source/php-pear/1:1.10.5+submodules+notgz-1ubuntu1.18.10.1

https://launchpad.net/ubuntu/+source/php-pear/1:1.10.5+submodules+notgz-1ubuntu1.18.04.1
https://launchpad.net/ubuntu/+source/php-pear/1:1.10.1+submodules+notgz-6ubuntu0.1