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Vigil@nce - QEMU: NULL pointer dereference via MMIO R/W Operations

July 2020 by Vigil@nce

This bulletin was written by Vigil@nce : https://vigilance.fr/computer-vulnerability

SYNTHESIS OF THE VULNERABILITY

Impacted products: QEMU.

Severity: 1/4.

Consequences: denial of service on server, denial of service on
service.

Provenance: privileged shell.

Confidence: confirmed by the editor (5/5).

Creation date: 02/07/2020.

DESCRIPTION OF THE VULNERABILITY

An attacker, inside a guest system, can force a NULL pointer to be
dereferenced via MMIO R/W Operations of QEMU, in order to trigger
a denial of service on the host system.

ACCESS TO THE FULL VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/QEMU-NULL-pointer-dereference-via-MMIO-R-W-Operations-32689


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