A Blueman security update has been released for Ubuntu Linux 16.04 LTS, 18.04 LTS, 20.04 LTS, and 20.10.

USN-4605-1: Blueman vulnerability

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Ubuntu Security Notice USN-4605-1
October 27, 2020

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

- Ubuntu 20.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Blueman could be made to run programs if it received specially crafted
input.

Software Description:
- blueman: Graphical bluetooth manager

Details:

Vaisha Bernard discovered that blueman did not properly sanitize input
on the d-bus interface to blueman-mechanism. A local attacker could
possibly use this issue to escalate privileges and run arbitrary code or
cause a denial of service. (CVE-2020-15238)

Update instructions:

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

Ubuntu 20.10:
blueman 2.1.3-2ubuntu1

Ubuntu 20.04 LTS:
blueman 2.1.2-1ubuntu0.1

Ubuntu 18.04 LTS:
blueman 2.0.5-1ubuntu1.1

Ubuntu 16.04 LTS:
blueman 2.0.4-1ubuntu2.1

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

References:
  https://usn.ubuntu.com/4605-1
CVE-2020-15238

Package Information:
  https://launchpad.net/ubuntu/+source/blueman/2.1.3-2ubuntu1
  https://launchpad.net/ubuntu/+source/blueman/2.1.2-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/blueman/2.0.5-1ubuntu1.1
  https://launchpad.net/ubuntu/+source/blueman/2.0.4-1ubuntu2.1