USN-6809-1: BlueZ vulnerabilities

Releases

• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

Packages

• bluez - Bluetooth tools and daemons

Details

It was discovered that BlueZ could be made to dereference invalid memory.
An attacker could possibly use this issue to cause a denial of service.
This issue only affected Ubuntu 22.04 LTS. (CVE-2022-3563)

It was discovered that BlueZ could be made to write out of bounds. If a
user were tricked into connecting to a malicious device, an attacker could
possibly use this issue to cause a denial of service or execute arbitrary
code. (CVE-2023-27349)

Update instructions

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

Ubuntu 22.04

• bluez - 5.64-0ubuntu1.3
• bluez-tests - 5.64-0ubuntu1.3
• libbluetooth3 - 5.64-0ubuntu1.3

Ubuntu 20.04

• bluez - 5.53-0ubuntu3.8
• libbluetooth3 - 5.53-0ubuntu3.8

Ubuntu 18.04

• bluez - 5.48-0ubuntu3.9+esm2
  Available with Ubuntu Pro
• libbluetooth3 - 5.48-0ubuntu3.9+esm2
  Available with Ubuntu Pro

Ubuntu 16.04

• bluez - 5.37-0ubuntu5.3+esm4
  Available with Ubuntu Pro
• libbluetooth3 - 5.37-0ubuntu5.3+esm4
  Available with Ubuntu Pro

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

References

• CVE-2023-27349
• CVE-2022-3563