Vigil@nce - Xen: information disclosure via a side channel
March 2020 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/?langue=2
SYNTHESIS OF THE VULNERABILITY
Impacted products: Xen.
Severity: 1/4.
Consequences: data reading.
Provenance: user shell.
Confidence: confirmed by the editor (5/5).
Creation date: 11/03/2020.
DESCRIPTION OF THE VULNERABILITY
An attacker, inside a guest system, can bypass the virtual memory
barriers via a side channel in Xen, in order to get sensitive
information from the host system or others guests.
ACCESS TO THE FULL VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/Xen-information-disclosure-via-a-side-channel-31763