oss-security - CVE Request Qemu: scsi: megasas: out-of-bounds read in megasas_lookup

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Message-ID: <alpine.LFD.2.20.1605251802140.15974@wniryva>
Date: Wed, 25 May 2016 18:04:14 +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 Request Qemu: scsi: megasas: out-of-bounds read in megasas_lookup_frame()
 function

   Hello,

Quick Emulator(Qemu) built with the MegaRAID SAS 8708EM2 Host Bus Adapter 
emulation support is vulnerable to an out-of-bounds read access issue. It 
could occur while looking up MegaRAID Firmware Interface(MFI) command frames 
in 'megasas_lookup_frame' routine.

A privileged user inside guest could use this flaw to read invalid memory 
leading to crash the Qemu process on the host.

Upstream patch:
---------------
   -> https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg04424.html

Reference:
----------
   -> https://bugzilla.redhat.com/show_bug.cgi?id=1336461

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

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

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