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Re: CVE request Qemu: display: virtio-gpu: memory leakage when destroying gpu resource


From: <cve-assign () mitre org>
Date: Thu, 8 Dec 2016 01:36:58 -0500

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Quick Emulator(Qemu) built with the Virtio GPU Device emulator support is
vulnerable to a memory leakage issue. It could occur while destroying gpu
resource object in 'virtio_gpu_resource_destroy'

A guest user/process could use this flaw to leak host memory bytes, resulting
in DoS for a host.

https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg05043.html

the 'iov' and 'addrs' field in resource is not freed

Use CVE-2016-9912.

This is not yet available at
http://git.qemu.org/?p=qemu.git;a=history;f=hw/display/virtio-gpu.c but
that may be an expected place for a later update.

- -- 
CVE Assignment Team
M/S M300, 202 Burlington Road, Bedford, MA 01730 USA
[ A PGP key is available for encrypted communications at
  http://cve.mitre.org/cve/request_id.html ]
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