Vigil@nce - Xen: information disclosure via Uncleaned ARM Cache
March 2021 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/?langue=2
SYNTHESIS OF THE VULNERABILITY
Impacted products: Fedora, Xen.
Severity: 1/4.
Consequences: data reading.
Provenance: user shell.
Confidence: confirmed by the editor (5/5).
Creation date: 16/02/2021.
DESCRIPTION OF THE VULNERABILITY
An attacker, inside a guest system, can bypass access restrictions
to data via Uncleaned ARM Cache of Xen, in order to obtain
sensitive information on the host system.
ACCESS TO THE FULL VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/Xen-information-disclosure-via-Uncleaned-ARM-Cache-34592