oss-security - CVE request Qemu: display: virtio-gpu: memory leakage while updating cursor

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Message-ID: <alpine.LFD.2.20.1612060051070.20462@wniryva>
Date: Tue, 6 Dec 2016 00:54:17 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
cc: Li Qiang <liq3ea@...il.com>
Subject: CVE request Qemu: display: virtio-gpu: memory leakage while updating
 cursor

   Hello,

Quick Emulator built with the Virtio GPU Device emulator support is vulnerable 
to a memory leakage issue. It could occur while updating the cursor data in 
update_cursor_data_virgl.

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

Upstream patch:
---------------
   -> https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg00029.html

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

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