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Ubuntu Security Notice USN-5481-1

Ubuntu Security Notice USN-5481-1
Posted Jun 20, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5481-1 - 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.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
SHA-256 | f85ccd10a9d9f947679bd4eb84c73526a000ee04f7e8c5b18c12fde65e21569b

Ubuntu Security Notice USN-5481-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-5481-1
June 15, 2022

bluez vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in BlueZ.

Software Description:
- bluez: Bluetooth tools and daemons

Details:

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 LTS:
bluez 5.53-0ubuntu3.6
libbluetooth3 5.53-0ubuntu3.6

Ubuntu 18.04 LTS:
bluez 5.48-0ubuntu3.9
libbluetooth3 5.48-0ubuntu3.9

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

References:
https://ubuntu.com/security/notices/USN-5481-1
https://launchpad.net/bugs/1977968

Package Information:
https://launchpad.net/ubuntu/+source/bluez/5.53-0ubuntu3.6
https://launchpad.net/ubuntu/+source/bluez/5.48-0ubuntu3.9
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