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Vulnerability of Linux kernel: information disclosure via SG_IO

Synthesis of the vulnerability 

A local attacker can read a memory fragment via SG_IO of the Linux kernel, in order to obtain sensitive information.
Impacted software: Debian, Android OS, Linux, openSUSE Leap, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this computer vulnerability: 1/4.
Creation date: 11/06/2018.
Revision date: 26/06/2018.
Références of this announce: CERTFR-2018-AVI-299, CERTFR-2018-AVI-319, CERTFR-2018-AVI-321, CERTFR-2018-AVI-392, CERTFR-2018-AVI-408, CERTFR-2018-AVI-413, CERTFR-2018-AVI-426, CVE-2018-1000204, DLA-1422-1, DLA-1422-2, DLA-1423-1, DLA-1424-1, DLA-1434-1, openSUSE-SU-2018:2119-1, openSUSE-SU-2019:1407-1, RHSA-2018:2948-01, SUSE-SU-2018:1761-1, SUSE-SU-2018:1762-1, SUSE-SU-2018:1855-1, SUSE-SU-2018:2332-1, SUSE-SU-2018:2366-1, SUSE-SU-2018:2637-1, SUSE-SU-2019:1245-1, USN-3696-1, USN-3696-2, USN-3752-1, USN-3752-2, USN-3752-3, USN-3754-1, VIGILANCE-VUL-26368.

Description of the vulnerability 

A local attacker can read a memory fragment via SG_IO of the Linux kernel, in order to obtain sensitive information.
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This cybersecurity note impacts software or systems such as Debian, Android OS, Linux, openSUSE Leap, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this computer weakness announce is low.

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

A proof of concept or an attack tool is available, so your teams have to process this alert. An attacker with a technician ability can exploit this cybersecurity vulnerability.

Solutions for this threat 

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 SG_IO.
A patch is indicated in information sources.

Debian 8: new linux-4.9 packages.
New packages are available:
  Debian 8: linux-4.9 4.9.110-1~deb8u1

Debian 8: new linux packages (16/07/2018).
New packages are available:
  Debian 8: linux 3.16.57-2

Google Android OS: patch 2019-09-05.
A 2019-09-05 patch is indicated in information sources.

openSUSE Leap 15.0: new kernel packages.
New packages are available:
  openSUSE Leap 15.0: kernel 4.12.14-lp150.12.7.1

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-alt packages (30/10/2018).
New packages are available:
  RHEL 7: kernel-alt 4.14.0-115.el7a

SUSE LE 11 SP3: new kernel packages.
New packages are available:
  SUSE LE 11 SP3: kernel 3.0.101-0.47.106.43.1

SUSE LE 11 SP4: new kernel packages.
New packages are available:
  SUSE LE 11 SP4: kernel 3.0.101-108.68.1

SUSE LE 11 SP4: new kernel-rt packages.
New packages are available:
  SUSE LE 11 SP4: kernel-rt 3.0.101.rt130-69.33.1

SUSE LE 12 RTM: new kernel packages.
New packages are available:
  SUSE LE 12 RTM: kernel 3.12.61-52.136.1

SUSE LE 12 SP1: new kernel packages.
New packages are available:
  SUSE LE 12 SP1: kernel 3.12.74-60.64.96.1

SUSE LE 12 SP2: new kernel packages.
New packages are available:
  SUSE LE 12 SP2: kernel 4.4.121-92.85.1

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

Ubuntu 14.04: new linux-image-3.13.0 packages.
New packages are available:
  Ubuntu 14.04 LTS: linux-image-generic 3.13.0.157.167

Ubuntu: new linux-image-4.15.0 packages.
New packages are available:
  Ubuntu 16.04 LTS: linux-image-generic-hwe-16.04 4.15.0.33.55
  Ubuntu 18.04 LTS: linux-image-generic 4.15.0.33.35

Ubuntu: new linux-image-4.4.0 packages.
New packages are available:
  Ubuntu 14.04 LTS: linux-image-generic-lts-xenial 4.4.0.130.110
  Ubuntu 16.04 LTS: linux-image-generic 4.4.0.130.136

Wind River Linux: solution (16/10/2018).
The solution is indicated in information sources.
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