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List:       oss-security
Subject:    [oss-security] CVE-2019-8934 QEMU: ppc64: sPAPR emulator leaks the host hardware identity
From:       P J P <ppandit () redhat ! com>
Date:       2019-02-21 8:18:45
Message-ID: nycvar.YSQ.7.76.1902211335290.504 () xnncv
[Download RAW message or body]

   Hello,

It was found that the KVM PPC64 emulator for the sPAPR machine leaks the host 
hardware identity to all running guests. The sPAPAR(hw/ppc/spapr.c) emulator 
populates the device tree for the guest with two fields "host-serial" and 
"host-model". The values for these fields are taken via hypervisor from the 
host device tree data exposed in "/proc/device-tree/system-id" and 
"/proc/device-tree/model" file respectively.

Upstream patch:
---------------
   -> https://lists.gnu.org/archive/html/qemu-devel/2019-02/msg04821.html

CVE-2019-8934 assigned via https://cveform.mitre.org/

Thank you.
--
Prasad J Pandit / Red Hat Product Security Team
47AF CE69 3A90 54AA 9045 1053 DD13 3D32 FE5B 041F
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