Vigil@nce - QEMU: out-of-bounds memory reading via ARM Generic Interrupt Controller
April 2021 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/computer-vulne...
SYNTHESIS OF THE VULNERABILITY
Impacted products: Debian, openSUSE Leap, QEMU, SLES.
Consequences: data reading, denial of service on server, denial of service on service.
Provenance: user shell.
Confidence: confirmed by the editor (5/5).
Creation date: 05/02/2021.
DESCRIPTION OF THE VULNERABILITY
An attacker, inside a guest system, can force a read at an invalid address via ARM Generic Interrupt Controller of QEMU, in order to trigger a denial of service, or to obtain sensitive information on the host system.
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