USN-5275-1: BlueZ vulnerability

Details

Ziming Zhang discovered that BlueZ incorrectly handled memory write operations
in its gatt server. A remote attacker could possibly use this to cause BlueZ to
crash leading to a denial of service, or potentially remotely execute code.
(CVE-2022-0204)

Update instructions

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

Ubuntu 21.10

• bluez - 5.60-0ubuntu2.2
• libbluetooth3 - 5.60-0ubuntu2.2

Ubuntu 20.04

• bluez - 5.53-0ubuntu3.5
• libbluetooth3 - 5.53-0ubuntu3.5

Ubuntu 18.04

• bluez - 5.48-0ubuntu3.8
• libbluetooth3 - 5.48-0ubuntu3.8

Ubuntu 16.04

• bluez - 5.37-0ubuntu5.3+esm2
  Available with UA Infra or UA Desktop
• libbluetooth3 - 5.37-0ubuntu5.3+esm2
  Available with UA Infra or UA Desktop

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

References

• CVE-2022-0204