Double Free in PulseAudio - CVE-2020-15710

Vulnerability identifier: #VU83410

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-15710

CWE-ID: CWE-415

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the src/modules/bluetooth/module-bluez5-device.c and src/modules/bluetooth/module-bluez5-device.c files of the Bluez 5 module. A local user can trigger a double free error and perform a denial of service (DoS) attack.

PulseAudio
Ubuntu
libpulse-mainloop-glib0 (Ubuntu package)
libpulse0 (Ubuntu package)
pulseaudio (Ubuntu package)
pulseaudio-module-bluetooth (Ubuntu package)
pulseaudio-utils (Ubuntu package)

Install updates from vendor's website.

PulseAudio - update to 9.99.1
libpulse-mainloop-glib0 (Ubuntu package) - update to 1:8.0-0ubuntu3.14
libpulse0 (Ubuntu package) - update to 1:8.0-0ubuntu3.14
pulseaudio (Ubuntu package) - update to 1:8.0-0ubuntu3.14
pulseaudio-module-bluetooth (Ubuntu package) - update to 1:8.0-0ubuntu3.14
pulseaudio-utils (Ubuntu package) - update to 1:8.0-0ubuntu3.14

• https://launchpad.net/bugs/1884738
• https://github.com/pulseaudio/pulseaudio/commit/4231befa7787dbbfdd24e7f9bb248a18cbeab7a0

• Local denial of service in PulseAudio
• Ubuntu update for pulseaudio