This bulletin was written by Vigil@nce : https://vigilance.fr/offer/Computer-vulnerabilities-watch-and-alert

SYNTHESIS OF THE VULNERABILITY

Impacted products: Fedora, Linux, openSUSE Leap, Slackware, SUSE
Linux Enterprise Desktop, SLES, Ubuntu.

Severity: 2/4.

Consequences: administrator access/rights, privileged
access/rights.

Provenance: user shell.

Confidence: confirmed by the editor (5/5).

Creation date: 25/02/2020.

DESCRIPTION OF THE VULNERABILITY

An attacker, inside a guest system, can bypass restrictions via
KVM Nested VMX of the Linux kernel, in order to escalate his
privileges on the host system.

ACCESS TO THE FULL VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/Linux-kernel-privilege-escalation-via-KVM-Nested-VMX-31677