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Bug 621184 (CVE-2017-9503) - <app-emulation/qemu-2.9.0-r55: scsi: null pointer dereference while processing megasas command
Summary: <app-emulation/qemu-2.9.0-r55: scsi: null pointer dereference while processin...
Alias: CVE-2017-9503
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal minor (vote)
Assignee: Gentoo Security
Whiteboard: B3 [noglsa cve]
Depends on: CVE-2017-11434
  Show dependency tree
Reported: 2017-06-08 07:35 UTC by Agostino Sarubbo
Modified: 2017-09-03 22:51 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


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Description Agostino Sarubbo gentoo-dev 2017-06-08 07:35:35 UTC
From ${URL} :

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:


@maintainer(s): after the bump, in case we need to stabilize the package, please let us know if it is ready for the stabilization or not.
Comment 1 Matthias Maier gentoo-dev 2017-07-26 17:16:00 UTC
commit e67f10960bca69fdede54d77eb54c4ab72b98d08
Author: Matthias Maier <>
Date:   Wed Jul 26 12:10:46 2017 -0500

    app-emulation/qemu: security fixes
      CVE-2017-11334, bug #621292
      CVE-2017-11434, bug #625614
      CVE-2017-9503, bug #621184
      CVE-2017-9524, bug #621292
    Package-Manager: Portage-2.3.6, Repoman-2.3.3