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Date: Tue, 20 Sep 2016 15:08:34 -0400 (EDT)
From: cve-assign@...re.org
To: ppandit@...hat.com
Cc: cve-assign@...re.org, oss-security@...ts.openwall.com, liqiang6-s@....cn
Subject: Re: CVE Request Qemu: usb: xhci memory leakage during device unplug

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> Quick Emulator(Qemu) built with the USB xHCI controller emulation support is
> vulnerable to a memory leakage issue. It could occur while doing a USB device
> unplug operation; Doing so repeatedly would result in leaking host memory,
> affecting other services on the host.
> 
> A privileged user inside guest could use this flaw to cause a DoS on the host
> and/or potentially crash the Qemu process instance on the host.
> 
> https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg02773.html
> http://git.qemu.org/?p=qemu.git;a=commit;h=b53dd4495ced2432a0b652ea895e651d07336f7e
> 
> If the xhci uses msix, it doesn't free the corresponding
> memory, thus leading a memory leak. This patch avoid this.

Use CVE-2016-7466.

- -- 
CVE Assignment Team
M/S M300, 202 Burlington Road, Bedford, MA 01730 USA
[ A PGP key is available for encrypted communications at
  http://cve.mitre.org/cve/request_id.html ]
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