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Date: Thu, 12 Oct 2017 23:32:59 +0530 (IST)
From: P J P <>
To: oss security list <>
cc: niuguoxiang <>
Subject: CVE-2017-15289 Qemu: cirrus: OOB access issue in mode4and5 write


Quick emulator(Qemu) built with the Cirrus CLGD 54xx VGA Emulator support is 
vulnerable to an out-of-bounds write access issues. It could occur while 
writing to VGA memory via mode4and5 write functions.

A privileged user inside guest could use this flaw to crash the Qemu process 
resulting in DoS.

Upstream patch:


This issue was reported by Guoxiang Niu.

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

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