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Vulnerability of QEMU: memory leak via the EHCI emulation

Synthesis of the vulnerability 

A privileged attacker, inside a guest system, can create a memory leak via the EHCI emulation in QEMU, in order to trigger a denial of service on the host system.
Impacted software: Debian, Fedora, openSUSE Leap, QEMU, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this computer vulnerability: 2/4.
Creation date: 07/06/2017.
Références of this announce: CVE-2017-9374, DLA-1497-1, DSA-3920-1, FEDORA-2017-f941184db1, openSUSE-SU-2017:1872-1, RHSA-2017:2392-01, SUSE-SU-2017:1770-1, SUSE-SU-2017:1774-1, SUSE-SU-2017:1795-1, SUSE-SU-2017:1812-1, SUSE-SU-2017:2946-1, USN-3414-1, USN-3414-2, VIGILANCE-VUL-22912.

Description of the vulnerability 

A privileged attacker, inside a guest system, can create a memory leak via the EHCI emulation in QEMU, in order to trigger a denial of service on the host system.
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This computer threat impacts software or systems such as Debian, Fedora, openSUSE Leap, QEMU, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this computer vulnerability alert is medium.

The trust level is of type confirmed by the editor, with an origin of privileged shell.

An attacker with a expert ability can exploit this cybersecurity weakness.

Solutions for this threat 

QEMU: patch for EHCI.
A patch is indicated in information sources.

Debian 8: new qemu packages.
New packages are available:
  Debian 8: qemu 1:2.1+dfsg-12+deb8u7

Debian 9: new qemu packages (26/07/2017).
New packages are available:
  Debian 9: qemu 1:2.8+dfsg-6+deb9u1

Fedora 25: new qemu packages.
New packages are available:
  Fedora 25: qemu 2.7.1-7.fc25

openSUSE Leap 42.2: new qemu packages (17/07/2017).
New packages are available:
  openSUSE Leap 42.2: qemu 2.6.2-31.3.3

RHEL 7: new qemu-kvm-rhev packages.
New packages are available:
  RHEL 7: qemu-kvm-rhev 2.9.0-14.el7

SUSE LE 11 SP4: new xen packages.
New packages are available:
  SUSE LE 11 SP4: xen 4.4.4_20-60.3

SUSE LE 12: new xen packages (06/07/2017).
New packages are available:
  SUSE LE 12 RTM: xen 4.4.4_21-22.42.1

SUSE LE 12 SP1: new qemu packages (08/11/2017).
New packages are available:
  SUSE LE 12 SP1: qemu 2.3.1-33.3.3

SUSE LE 12 SP1: new xen packages.
New packages are available:
  SUSE LE 12 SP1: xen 4.5.5_12-22.18.1

SUSE LE 12 SP2: new qemu packages (05/07/2017).
New packages are available:
  SUSE LE 12 SP2: qemu 2.6.2-41.16.1

Ubuntu: new qemu-system packages.
New packages are available:
  Ubuntu 17.04: qemu-system 1:2.8+dfsg-3ubuntu2.5
  Ubuntu 16.04 LTS: qemu-system 1:2.5+dfsg-5ubuntu10.16
  Ubuntu 14.04 LTS: qemu-system 2.0.0+dfsg-2ubuntu1.36

Wind River Linux: solution of Mid-August 2017.
The solution is indicated in information sources.
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