Vigil@nce - Xen: memory corruption via PCI Devices Deassignment
December 2019 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, denial of service on server, denial of service on
service.
Provenance: user shell.
Confidence: confirmed by the editor (5/5).
Creation date: 31/10/2019.
DESCRIPTION OF THE VULNERABILITY
An attacker, inside a guest system, can trigger a memory
corruption via PCI Devices Deassignment of Xen, in order to
trigger a denial of service, and possibly to run code on the host
system.
ACCESS TO THE FULL VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/Xen-memory-corruption-via-PCI-Devices-Deassignment-30760