oss-security - CVE-2017-9503 Qemu: scsi: null pointer dereference while processing megasas command

Follow @Openwall on Twitter for new release announcements and other news

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <alpine.LFD.2.20.1706081138160.21700@wniryva>
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

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.