oss-security - CVE-2017-9060 Qemu: virtio-gpu: host memory leakage in Virtio GPU device

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Message-ID: <alpine.LFD.2.20.1705191544100.29617@wniryva>
Date: Fri, 19 May 2017 15:48:44 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
cc: Li Qiang <liqiang6-s@....cn>
Subject: CVE-2017-9060 Qemu: virtio-gpu: host memory leakage in Virtio GPU
 device

   Hello,

Quick Emulator(Qemu) built with the Virtio GPU Device emulator support is 
vulnerable to a memory leakage issue. It could occur while processing 
'VIRTIO_GPU_CMD_SET_SCANOUT:' command.

A guest user/process could use this flaw to leak host memory resulting in Dos.

Upstream patch:
---------------
   -> http://git.qemu.org/?p=qemu.git;a=commitdiff;h=dd248ed7e204ee8a1873914e02b8b526e8f1b80d

Reference:
----------
   -> https://bugzilla.redhat.com/show_bug.cgi?id=1452597

This issue was reported by Li Qiang of Qihoo 360 Gear Team.

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

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