Vigil@nce - Linux, Xen: memory leak via Blkback Driver
April 2021 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/computer-vulnerability
SYNTHESIS OF THE VULNERABILITY
Impacted products: XenServer, Linux, openSUSE Leap, SUSE Linux
Enterprise Desktop, SLES, Xen.
Severity: 1/4.
Consequences: denial of service on server, denial of service on
service.
Provenance: user shell.
Confidence: confirmed by the editor (5/5).
Creation date: 30/03/2021.
DESCRIPTION OF THE VULNERABILITY
An attacker, inside a guest system, can create a memory leak via
Blkback Driver of Linux with Xen, in order to trigger a denial of
service on the host system.
ACCESS TO THE FULL VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/Linux-Xen-memory-leak-via-Blkback-Driver-34966