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Vulnerability of Linux kernel: information disclosure via Powerpc FP/VMX Transaction Interrupt

Synthesis of the vulnerability 

A local attacker can read a memory fragment via Powerpc FP/VMX Transaction Interrupt of the Linux kernel, in order to obtain sensitive information.
Vulnerable products: Linux, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this weakness: 1/4.
Creation date: 10/09/2019.
Références of this bulletin: CERTFR-2019-AVI-448, CERTFR-2019-AVI-455, CERTFR-2019-AVI-502, CERTFR-2019-AVI-503, CERTFR-2019-AVI-530, CERTFR-2019-AVI-612, CERTFR-2020-AVI-029, CVE-2019-15031, openSUSE-SU-2019:2173-1, openSUSE-SU-2019:2181-1, SUSE-SU-2019:2412-1, SUSE-SU-2019:2424-1, SUSE-SU-2019:2648-1, SUSE-SU-2019:2651-1, SUSE-SU-2019:2658-1, SUSE-SU-2019:2738-1, SUSE-SU-2019:3200-1, SUSE-SU-2020:0093-1, USN-4135-1, USN-4135-2, VIGILANCE-VUL-30288.

Description of the vulnerability 

A local attacker can read a memory fragment via Powerpc FP/VMX Transaction Interrupt of the Linux kernel, in order to obtain sensitive information.
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This weakness impacts software or systems such as Linux, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

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

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 bulletin.

Solutions for this threat 

Linux kernel: version 5.2.15.
The version 5.2.15 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v5.x/

Linux kernel: version 4.19.73.
The version 4.19.73 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: patch for Powerpc FP/VMX Transaction Interrupt.
A patch is indicated in information sources.

openSUSE Leap 15: new kernel packages.
New packages are available:
  openSUSE Leap 15.0: kernel 4.12.14-lp150.12.73.1
  openSUSE Leap 15.1: kernel 4.12.14-lp151.28.16.1

SUSE LE 12 SP4: new kernel-azure packages.
New packages are available:
  SUSE LE 12 SP4: kernel-azure 4.12.14-6.26.1

SUSE LE 12 SP4: new kernel-default packages.
New packages are available:
  SUSE LE 12 SP4: kernel-default 4.12.14-95.32.1

SUSE LE 12 SP5: new kernel-azure packages.
New packages are available:
  SUSE LE 12 SP5: kernel-azure 4.12.14-16.7.1

SUSE LE 12 SP5: new kernel packages (09/12/2019).
New packages are available:
  SUSE LE 12 SP5: kernel 4.12.14-122.7.1

SUSE LE 15: new kernel-azure packages.
New packages are available:
  SUSE LE 15 RTM: kernel-azure 4.12.14-5.41.1
  SUSE LE 15 SP1: kernel-azure 4.12.14-8.16.1

SUSE LE 15 SP1: new kernel-default packages.
New packages are available:
  SUSE LE 15 SP1: kernel-default 4.12.14-197.18.1

SUSE LE 15 SP1: new kernel-rt packages.
New packages are available:
  SUSE LE 15 SP1: kernel-rt 4.12.14-14.11.1

Ubuntu: new linux-image packages.
New packages are available:
  Ubuntu 19.04: linux-image-5.0.0-29-generic 5.0.0-29.31
  Ubuntu 18.04 LTS: linux-image-4.15.0-64-generic 4.15.0-64.73
  Ubuntu 16.04 LTS: linux-image-4.4.0-164-generic 4.4.0-164.192
  Ubuntu 14.04 ESM: linux-image-3.13.0-173-generic 3.13.0-173.224, linux-image-4.4.0-164-generic 4.4.0-164.192~14.04.1, linux-image-generic 3.13.0.173.184
  Ubuntu 12.04 ESM: linux-image-3.13.0-173-generic 3.13.0-173.224~12.04.1, linux-image-3.2.0-143-generic 3.2.0-143.190, linux-image-generic 3.2.0.143.158
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