Vigil@nce - Linux kernel: NULL pointer dereference via Hyper-V Context
April 2021 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/computer-vulnerability
SYNTHESIS OF THE VULNERABILITY
Impacted products: Fedora, Linux.
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: 07/04/2021.
DESCRIPTION OF THE VULNERABILITY
An attacker, inside a guest system, can force a NULL pointer to be
dereferenced via Hyper-V Context of the Linux kernel, in order to
trigger a denial of service on the host system.
ACCESS TO THE FULL VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/Linux-kernel-NULL-pointer-dereference-via-Hyper-V-Context-35020