Vigil@nce - QEMU: out-of-bounds memory reading via rdma_backend_post
February 2019 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer/Computer...
SYNTHESIS OF THE VULNERABILITY
Impacted products: QEMU.
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: 18/12/2018.
DESCRIPTION OF THE VULNERABILITY
An attacker, inside a guest system, can force a read at an invalid address via rdma_backend_post of QEMU, in order to trigger a denial of service, or to obtain sensitive information on the host system.
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