bluez vulnerabilities

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

* Ubuntu 19.10
* Ubuntu 18.04 LTS
* Ubuntu 16.04 LTS

Summary

Several security issues were fixed in BlueZ.

Software Description

* bluez - Bluetooth tools and daemons

Details

It was discovered that BlueZ incorrectly handled bonding HID and
HOGP devices. A local attacker could possibly use this issue to
impersonate non-bonded devices. (CVE-2020-0556)

It was discovered that BlueZ incorrectly handled certain commands.
A local attacker could use this issue to cause BlueZ to crash,
resulting in a denial of service, or possibly execute arbitrary
code. This issue only affected Ubuntu 16.04 LTS. (CVE-2016-7837)

Update instructions

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

Ubuntu 19.10
bluez - 5.50-0ubuntu5.1
libbluetooth3 - 5.50-0ubuntu5.1

Ubuntu 18.04 LTS
bluez - 5.48-0ubuntu3.4
libbluetooth3 - 5.48-0ubuntu3.4

Ubuntu 16.04 LTS
bluez - 5.37-0ubuntu5.3
libbluetooth3 - 5.37-0ubuntu5.3

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

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

References

* CVE-2016-7837
* CVE-2020-0556

--- Mystic BBS v1.12 A45 (Linux/64)
* Origin: BZ&BZ BBS (21:4/110)