1. Ubuntu Security Notices
  2. USN-4311-1

USN-4311-1: BlueZ vulnerabilities

Publication date

30 March 2020

Overview

Several security issues were fixed in BlueZ.

Releases

Packages

  • 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)

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

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
19.10 eoan bluez –  5.50-0ubuntu5.1
libbluetooth3 –  5.50-0ubuntu5.1
18.04 bionic bluez –  5.48-0ubuntu3.4
libbluetooth3 –  5.48-0ubuntu3.4
16.04 xenial bluez –  5.37-0ubuntu5.3
libbluetooth3 –  5.37-0ubuntu5.3

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References

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