=========================================================================Ubuntu Security Notice USN-4519-1
September 17, 2020

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

- Ubuntu 16.04 LTS

Summary:

PulseAudio could be made to crash or run programs as your login if it
received specially crafted input.

Software Description:
- pulseaudio: PulseAudio sound server

Details:

Ratchanan Srirattanamet discovered that an Ubuntu-specific patch caused
PulseAudio to incorrectly handle memory under certain error conditions in the
Bluez 5 module. An attacker could use this issue to cause PulseAudio to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2020-15710)

Update instructions:

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

Ubuntu 16.04 LTS:
  libpulse-mainloop-glib0         1:8.0-0ubuntu3.14
  libpulse0                       1:8.0-0ubuntu3.14
  pulseaudio                      1:8.0-0ubuntu3.14
  pulseaudio-module-bluetooth     1:8.0-0ubuntu3.14
  pulseaudio-utils                1:8.0-0ubuntu3.14

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

References:
  https://ubuntu.com/security/notices/USN-4519-1
  CVE-2020-15710

Package Information:
  https://launchpad.net/ubuntu/+source/pulseaudio/1:8.0-0ubuntu3.14