Vigil@nce - Xen: privilege escalation via Grant Table Transfer
May 2019 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer/Computer-vulnerability-database-and-alert
SYNTHESIS OF THE VULNERABILITY
Impacted products: Fedora, Xen.
Severity: 2/4.
Consequences: administrator access/rights, privileged
access/rights, denial of service on server.
Provenance: user shell.
Confidence: confirmed by the editor (5/5).
Creation date: 05/03/2019.
DESCRIPTION OF THE VULNERABILITY
An attacker, inside a guest system, can bypass restrictions via
Grant Table Transfer 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-Grant-Table-Transfer-28655