Ubuntu Security Notice 5275-1 - 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.
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Ubuntu Security Notice USN-5275-1
February 08, 2022
bluez vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 21.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM
Summary:
BlueZ could be made to crash or run programs if it received
specially crafted network traffic.
Software Description:
- bluez: Bluetooth tools and daemons
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 LTS:
bluez 5.53-0ubuntu3.5
libbluetooth3 5.53-0ubuntu3.5
Ubuntu 18.04 LTS:
bluez 5.48-0ubuntu3.8
libbluetooth3 5.48-0ubuntu3.8
Ubuntu 16.04 ESM:
bluez 5.37-0ubuntu5.3+esm2
libbluetooth3 5.37-0ubuntu5.3+esm2
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-5275-1
CVE-2022-0204
Package Information:
https://launchpad.net/ubuntu/+source/bluez/5.60-0ubuntu2.2
https://launchpad.net/ubuntu/+source/bluez/5.53-0ubuntu3.5
https://launchpad.net/ubuntu/+source/bluez/5.48-0ubuntu3.8