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Date: Thu, 8 Jun 2017 11:40:32 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
cc: Zhangyanyu <zyy4013@....ouc.edu.cn>
Subject: CVE-2017-9503 Qemu: scsi: null pointer dereference while processing
 megasas command

   Hello,

Quick Emulator(Qemu) built with the MegaRAID SAS 8708EM2 Host Bus Adapter 
emulation support is vulnerable to a null pointer dereference issue. It could 
occur while processing megasas commands via megasas_command_complete().

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

Upstream patches:
-----------------
   -> https://lists.gnu.org/archive/html/qemu-devel/2017-06/msg01313.html
   -> https://lists.gnu.org/archive/html/qemu-devel/2017-06/msg01309.html

Reference:
----------
   -> https://bugzilla.redhat.com/show_bug.cgi?id=1459477

This issue was reported by Zhangyanyu.

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

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