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Vulnerability of libvirt: privilege escalation via /dev/mapper/control

Synthesis of the vulnerability 

An attacker can bypass restrictions via /dev/mapper/control of libvirt, in order to escalate his privileges.
Impacted systems: openSUSE Leap, RHEL, SUSE Linux Enterprise Desktop, SLES.
Severity of this alert: 2/4.
Creation date: 13/08/2020.
Références of this alert: CVE-2020-14339, openSUSE-SU-2020:1455-1, RHSA-2020:3586-01, SUSE-SU-2020:2233-1, SUSE-SU-2020:2237-1, SUSE-SU-2020:2269-1, VIGILANCE-VUL-33077.

Description of the vulnerability 

An attacker can bypass restrictions via /dev/mapper/control of libvirt, in order to escalate his privileges.
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This computer weakness note impacts software or systems such as openSUSE Leap, RHEL, SUSE Linux Enterprise Desktop, SLES.

Our Vigil@nce team determined that the severity of this security bulletin is medium.

The trust level is of type confirmed by the editor, with an origin of user shell.

An attacker with a expert ability can exploit this weakness announce.

Solutions for this threat 

openSUSE Leap 15.2: new libvirt packages.
New packages are available:
  openSUSE Leap 15.2: libvirt 6.0.0-lp152.9.3.1

RHEL 8.2: new virt-8.2 module.
The following module is updated:
  RHEL 8.2 Module: virt:8.2

SUSE LE 12 SP5: new libvirt packages.
New packages are available:
  SUSE LE 12 SP5: libvirt 5.1.0-13.9.1

SUSE LE 15 SP1: new libvirt packages.
New packages are available:
  SUSE LE 15 SP1: libvirt 5.1.0-8.19.1

SUSE LE 15 SP2: new libvirt packages.
New packages are available:
  SUSE LE 15 SP2: libvirt 6.0.0-13.3.1
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