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Vulnerability of QEMU: memory corruption via pnv_lpc_do_eccb

Synthesis of the vulnerability 

An attacker, inside a guest system, can generate a memory corruption via pnv_lpc_do_eccb() of QEMU, in order to trigger a denial of service, and possibly to run code on the host system.
Vulnerable systems: Debian, Fedora, openSUSE Leap, QEMU, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this threat: 2/4.
Creation date: 07/11/2018.
Références of this weakness: CVE-2018-18954, DSA-4454-1, DSA-4454-2, FEDORA-2018-87f2ace20d, openSUSE-SU-2019:0254-1, openSUSE-SU-2019:1074-1, SUSE-SU-2019:0423-1, SUSE-SU-2019:0435-1, SUSE-SU-2019:0582-1, USN-3826-1, VIGILANCE-VUL-27710.

Description of the vulnerability 

An attacker, inside a guest system, can generate a memory corruption via pnv_lpc_do_eccb() of QEMU, in order to trigger a denial of service, and possibly to run code on the host system.
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This computer vulnerability announce impacts software or systems such as Debian, Fedora, openSUSE Leap, QEMU, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this cybersecurity bulletin is medium.

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

An attacker with a expert ability can exploit this threat alert.

Solutions for this threat 

QEMU: version 3.1.
The version 3.1 is fixed:
  https://www.qemu.org/download/#source

QEMU: version 3.0.1.
The version 3.0.1 is fixed:
  https://www.qemu.org/download/#source

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

Debian 9: new qemu packages.
New packages are available:
  Debian 9: qemu 1:2.8+dfsg-6+deb9u7

Fedora 29: new qemu packages.
New packages are available:
  Fedora 29: qemu 3.0.0-2.fc29

openSUSE Leap 15.0: new qemu packages.
New packages are available:
  openSUSE Leap 15.0: qemu 2.11.2-lp150.7.18.1

openSUSE Leap 42.3: new qemu packages (29/03/2019).
New packages are available:
  openSUSE Leap 42.3: qemu 2.9.1-56.1

SUSE LE 12 SP3: new qemu packages (12/03/2019).
New packages are available:
  SUSE LE 12 SP3: qemu 2.9.1-6.28.1

SUSE LE 12 SP4: new qemu packages.
New packages are available:
  SUSE LE 12 SP4: qemu 2.11.2-5.8.1

SUSE LE 15: new qemu packages.
New packages are available:
  SUSE LE 15 RTM: qemu 2.11.2-9.20.1

Ubuntu: new qemu packages.
New packages are available:
  Ubuntu 18.10: qemu 1:2.12+dfsg-3ubuntu8.1
  Ubuntu 18.04 LTS: qemu 1:2.11+dfsg-1ubuntu7.8
  Ubuntu 16.04 LTS: qemu 1:2.5+dfsg-5ubuntu10.33
  Ubuntu 14.04 LTS: qemu 2.0.0+dfsg-2ubuntu1.44

Wind River Linux: solution (28/11/2018).
The solution is indicated in information sources.
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