Vigil@nce - QEMU: out-of-bounds memory reading via SLiRP ARP/NCSI Packets
December 2020 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer/Computer-vulnerabilities-watch-and-alert
SYNTHESIS OF THE VULNERABILITY
Impacted products: QEMU.
Severity: 1/4.
Consequences: data reading, denial of service on server, denial of
service on service.
Provenance: privileged shell.
Confidence: confirmed by the editor (5/5).
Creation date: 27/11/2020.
DESCRIPTION OF THE VULNERABILITY
An attacker, inside a guest system, can force a read at an invalid
address via SLiRP ARP/NCSI Packets of QEMU, in order to trigger a
denial of service, or to obtain sensitive information on the host
system.
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