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Date: Mon, 13 Feb 2017 10:45:42 +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-2017-5957 Virglrenderer: stack overflow in
 vrend_decode_set_framebuffer_state

   Hello,

Virgil 3d project, used by Quick Emulator(Qemu) to implement 3D GPU support 
for the virtio GPU, is vulnerable to an stack buffer overflow issue. It could 
occur when in vrend_decode_set_framebuffer_state.

A guest user/process could use this flaw to crash the Qemu process instance 
resulting DoS.

Upstream patch:
---------------
   -> https://cgit.freedesktop.org/virglrenderer/commit/?id=926b9b3460a48f6454d8bbe9e44313d86a65447f

Reference:
----------
   -> https://bugzilla.redhat.com/show_bug.cgi?id=1421126

This issue was reported by Li Qiang of 360.cn Inc.

'CVE-2017-5957' assigned via -> https://cveform.mitre.org/

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

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