Bug 1459477 (CVE-2017-9503) - CVE-2017-9503 Qemu: scsi: megasas: null pointer dereference while processing megasas command
Summary: CVE-2017-9503 Qemu: scsi: megasas: null pointer dereference while processing ...
Status: NEW
Alias: CVE-2017-9503
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard: impact=low,public=20170510,reported=2...
Keywords: Security
Depends On: 1459478
Blocks: 1449494
TreeView+ depends on / blocked
 
Reported: 2017-06-07 09:15 UTC by Prasad J Pandit
Modified: 2018-07-18 15:23 UTC (History)
38 users (show)

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Description Prasad J Pandit 2017-06-07 09:15:24 UTC
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 patch:
---------------
  -> 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:
----------
  -> http://www.openwall.com/lists/oss-security/2017/06/08/1

Comment 1 Prasad J Pandit 2017-06-07 09:16:03 UTC
Acknowledgments:

Name: Zhangyanyu

Comment 2 Prasad J Pandit 2017-06-07 09:17:06 UTC
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1459478]

Comment 3 Paolo Bonzini 2017-06-07 17:55:37 UTC
Patches at https://lists.gnu.org/archive/html/qemu-devel/2017-06/msg01308.html


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