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Date: Fri, 21 Apr 2017 14:47:36 +0530 (IST)
From: P J P <>
To: oss security list <>
cc: Jiangxin <>, Li Qiang <>
Subject: CVE-2017-7980 Qemu: display: cirrus: OOB r/w access issues in bitblt


Quick emulator(Qemu) built with the Cirrus CLGD 54xx VGA Emulator support is 
vulnerable to an out-of-bounds r/w access issues. It could occur while copying 
VGA data via various bitblt functions.

A privileged user inside guest could use this flaw to crash the Qemu process 
resulting in DoS OR potentially execute arbitrary code on a host with 
privileges of Qemu process on the host.

Upstream patches:


This issue was independently reported by Jiangxin of PSIRT Huawei Inc. and Li 
Qiang of Inc.

CVE-2017-7980 assigned via ->

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

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