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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.

Severity: 2/4.

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.

ACCESS TO THE FULL VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/...




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