USN-4311-1: BlueZ vulnerabilities
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.
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