Vigil@nce - Xen: privilege escalation via Restartable PV Type Change
January 2020 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/computer-vulnerability
SYNTHESIS OF THE VULNERABILITY
Impacted products: XenServer, Fedora, openSUSE Leap, SUSE Linux
Enterprise Desktop, SLES, Xen.
Severity: 2/4.
Consequences: administrator access/rights, privileged
access/rights.
Provenance: user shell.
Confidence: confirmed by the editor (5/5).
Creation date: 04/11/2019.
DESCRIPTION OF THE VULNERABILITY
An attacker, inside a guest system, can bypass restrictions via
Restartable PV Type Change of Xen, in order to escalate his
privileges on the host system.
ACCESS TO THE FULL VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/Xen-privilege-escalation-via-Restartable-PV-Type-Change-30763