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Ubuntu 5275-1 Security Advisory: BlueZ Denial of Service Risk

ubuntu
Calendar Grey February 8, 2022
Dist Ubuntu Esm H88
Explore the significant BlueZ security flaw in Ubuntu that impacts various versions and discover methods to safeguard your system.
BlueZ could be made to crash or run programs if it received specially crafted network traffic.

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)

Topics%20covered

Topics Covered

security advisory denial of service remote code execution Ubuntu BlueZ

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

Severity
critical
Lowest
Low
Medium
High
Critical

February 08, 2022

Topics%20covered

Topics Covered

security advisory denial of service remote code execution Ubuntu BlueZ

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

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