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USN-5481-1: BlueZ vulnerabilities

15 June 2022

Several security issues were fixed in BlueZ.



  • bluez - Bluetooth tools and daemons


It was discovered that BlueZ incorrectly validated certain capabilities
and lengths when handling the A2DP profile. A remote attacker could use
this issue to cause BlueZ to crash, resulting in a denial of service, or
possibly execute arbitrary code.

Update instructions

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

Ubuntu 20.04
Ubuntu 18.04

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