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Vulnerability of Linux kernel: information disclosure via paravirt_patch

Synthesis of the vulnerability 

An attacker can bypass access restrictions to data via paravirt_patch of the Linux kernel, in order to obtain sensitive information.
Impacted software: Debian, QRadar SIEM, Linux, openSUSE Leap, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this computer vulnerability: 2/4.
Creation date: 21/08/2018.
Références of this announce: 1103505, CERTFR-2018-AVI-459, CERTFR-2018-AVI-462, CERTFR-2018-AVI-480, CERTFR-2018-AVI-508, CVE-2018-15594, DLA-1529-1, DLA-1531-1, DSA-4308-1, openSUSE-SU-2019:1407-1, RHSA-2019:2029-01, RHSA-2019:2043-01, SUSE-SU-2018:2879-1, SUSE-SU-2018:3084-1, SUSE-SU-2018:3088-1, SUSE-SU-2019:1245-1, USN-3775-1, USN-3775-2, USN-3776-1, USN-3776-2, USN-3777-1, USN-3777-2, USN-3777-3, VIGILANCE-VUL-27052.

Description of the vulnerability 

An attacker can bypass access restrictions to data via paravirt_patch of the Linux kernel, in order to obtain sensitive information.
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This security bulletin impacts software or systems such as Debian, QRadar SIEM, Linux, openSUSE Leap, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this cybersecurity announce 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 vulnerability alert.

Solutions for this threat 

Linux kernel: version 4.18.1.
The version 4.18.1 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.17.15.
The version 4.17.15 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.14.63.
The version 4.14.63 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.9.120.
The version 4.9.120 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 3.16.58.
The version 3.16.58 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v3.x/

Linux kernel: patch for paravirt_patch.
A patch is indicated in information sources.

Debian 8: new linux-4.9 packages.
New packages are available:
  Debian 8: linux-4.9 4.9.110-3+deb9u5~deb8u1

Debian 8: new linux packages (05/10/2018).
New packages are available:
  Debian 8: linux 3.16.59-1

Debian 9: new linux packages.
New packages are available:
  Debian 9: linux 4.9.110-3+deb9u5

IBM QRadar SIEM: patch for Kernel.
A patch is indicated in information sources.

openSUSE Leap 42.3: new kernel packages.
New packages are available:
  openSUSE Leap 42.3: kernel 4.4.179-99.1

RHEL 7: new kernel packages.
New packages are available:
  RHEL 7: kernel 3.10.0-1062.el7

RHEL 7: new kernel-rt packages.
New packages are available:
  RHEL 7: kernel-rt 3.10.0-1062.rt56.1022.el7

SUSE LE 11 SP4: new kernel packages.
New packages are available:
  SUSE LE 11 SP4: kernel 3.0.101-108.71.1

SUSE LE 11 SP4: new kernel-rt packages.
New packages are available:
  SUSE LE 11 SP4: kernel-rt 3.0.101.rt130-69.36.1

SUSE LE 12 SP2: new kernel packages.
New packages are available:
  SUSE LE 12 SP2: kernel 4.4.121-92.95.1

SUSE LE 12 SP3: new kernel packages.
New packages are available:
  SUSE LE 12 SP3: kernel 4.4.178-94.91.2

Ubuntu: new linux-image-3.13.0 packages.
New packages are available:
  Ubuntu 14.04 LTS: linux-image-3.13.0-160-generic 3.13.0-160.210
  Ubuntu 12.04 ESM: linux-image-3.13.0-160-generic 3.13.0-160.210~precise1

Ubuntu: new linux-image-4.15.0 packages.
New packages are available:
  Ubuntu 16.04 LTS: linux-image-generic-hwe-16.04 4.15.0.36.59
  Ubuntu 18.04 LTS: linux-image-generic 4.15.0.36.38

Ubuntu: new linux-image-4.4.0 packages.
New packages are available:
  Ubuntu 14.04 LTS: linux-image-generic-lts-xenial 4.4.0.137.117
  Ubuntu 16.04 LTS: linux-image-generic 4.4.0.137.143

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